Antistatic filter bag

Abstract

The utility model relates to the technical field of filter bags, and provides an antistatic filter bag which comprises a fixing frame and an adjusting structure, mounting blocks are fixed at the edge positions of the outer side of the fixing frame, a supporting ring is mounted at the bottom end of the fixing frame, a filter bag is fixed at the bottom end of the supporting ring, and a mounting structure is arranged in the fixing frame. The adjusting structure is arranged, and the rotating block is rotated to drive the threaded rod to rotate, so that the movable plate moves on the outer side of the movable plate through threaded connection under the guiding action of the guide rod, and the movable plate drives the supporting rod to enable the bottom plate to move downwards, so that adjustment is conveniently performed according to the length of a filter bag; under the elastic action of a first spring and a second spring, a movable rod drives an arc-shaped plate to abut against the inner wall of the filter bag, so that the filter bags with different diameters can be conveniently supported, the filter bags with different diameters and lengths can be supported, and the supporting strength of the filter bags is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of filter bag technology, and in particular to an antistatic filter bag. Background Technology

[0002] Filter bags are an important filtration material, mainly used to capture and retain particulate matter, dust or other impurities in gases or liquids to achieve purification. Antistatic filter bags are industrial filtration materials designed to eliminate the hazards of static electricity and are widely used in flammable and explosive dust environments.

[0003] To address this, patent CN210302833U discloses an antistatic composite dust collector filter bag, comprising a bag body with a five-layer composite structure. The bag body includes an outermost needle-punched felt layer, and inside the needle-punched felt layer, a first antistatic layer and a second antistatic layer are respectively arranged from the outside in. A keel structure runs through the bag body, including symmetrically arranged limiting discs on the sides of annular rings. A telescopic spring is provided between the limiting discs, penetrating the interior of the bag body. Limit rings are fixed to both ends of the telescopic spring. During operation, this invention effectively utilizes the vibration of the telescopic springs to shake off dust adhering to the bag body. After long-term operation, the filter pores of the bag body are less prone to clumping, facilitating subsequent cleaning. Simultaneously, the first and second antistatic layers solve the problem of slow static dissipation inside the filter bag, which to some extent prevents explosions caused by static electricity.

[0004] The antistatic composite dust collector filter bag mentioned above has an internal keel structure that makes it difficult to support and assemble filter bags of different sizes during use, which makes it inconvenient to replace filter bags of different sizes and reduces its practical performance during use. Utility Model Content

[0005] The purpose of this invention is to provide an antistatic filter bag to solve the problem that existing antistatic filter bags are not easy to adjust.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an antistatic filter bag, including a fixing frame and an adjustment structure;

[0007] Mounting blocks are fixed at the outer edge of the fixed frame, a support ring is installed at the bottom of the fixed frame, and a filter bag is fixed at the bottom of the support ring.

[0008] An adjustment structure is installed at the bottom of the fixed frame. The adjustment structure includes a threaded rod installed inside the fixed frame. A rotating block is fixed to the top of the threaded rod. A first fixed block is provided on the outside of the threaded rod. A first fixed cylinder is fixed on both sides of the first fixed block. A guide rod is fixed on both sides of the first fixed cylinder. A movable plate is installed on the outside of the threaded rod and the guide rod. A second fixed block is fixed to the bottom of the movable plate outside the threaded rod. A second fixed cylinder is fixed on both sides of the second fixed block. A limit plate is fixed to the bottom of the guide rod. A support rod is fixed at the edge of the bottom of the movable plate. A base plate is fixed to the bottom of the support rod. A second spring is fixed inside the first and second fixed cylinders. A movable rod is fixed to one end of the second spring. An arc-shaped plate is fixed to one end of the movable rod.

[0009] Preferably, the fixed frame has an internal mounting structure, which includes an internal groove inside the fixed frame. A first spring is fixed inside the internal groove, and a reset block is fixed to one end of the first spring. A first sliding groove is provided at the top of the internal groove, and a slider is fixed to the top of the reset block inside the first sliding groove. A second sliding groove is provided at the bottom of the internal groove, and a fixing rod is fixed to the bottom of the reset block inside the second sliding groove.

[0010] Preferably, the built-in slots are evenly distributed inside the fixed frame, the reset block and the built-in slots form a telescopic structure through a first spring, the fixed rod is arranged in an "L" shape, and the support ring and the fixed frame are connected by the fixed rod.

[0011] With the above structure, the fixing rod will fix the support ring under the elastic force of the first spring during use, which makes it easy to install filter bags of different diameters and also easy to disassemble, making it convenient to operate.

[0012] Preferably, a rotating ring is fixed to the outer side of the threaded rod inside the first fixed block, and the threaded rod and the first fixed block are rotatably connected through the rotating ring. The guide rods are symmetrically distributed on both sides of the first fixed cylinder, and the top end of the guide rod is fixedly connected to the bottom end of the fixed frame. The moving plate is threadedly connected to the threaded rod, and the bottom end of the threaded rod penetrates the interior of the limiting plate and is rotatably connected to the interior of the limiting plate.

[0013] With the above structure, during use, the movable plate moves on the outside of the movable plate under the guidance of the guide rod, thereby driving the support rod to move the bottom plate downward, which makes it easy to adjust according to the length of the filter bag.

[0014] Preferably, the support rods are evenly spaced at the top of the base plate, the movable rods are connected to the first fixed cylinder and the second fixed cylinder by a second spring to form a telescopic structure, and the arc-shaped plate abuts against the inner wall of the filter bag.

[0015] With the above structure, during use, the movable rod drives the arc plate to abut against the inner wall of the filter bag under the elastic force of the second spring, which facilitates the support of filter bags of different diameters and lengths, thereby strengthening the support strength of the filter bags.

[0016] Preferably, a protective structure is fixed to the outside of the filter bag. The protective structure includes a substrate disposed inside the filter bag, a first conductive fiber fixed to one side of the substrate, a second conductive fiber fixed to the other side of the substrate, a corrosion-resistant layer disposed to one side of the second conductive fiber, an antistatic coating disposed to one side of the corrosion-resistant layer, a wear-resistant layer disposed to one side of the first conductive fiber, and an antistatic ring fixed to the outside of the filter bag.

[0017] Preferably, the substrate is made of polyester, the first conductive fiber and the second conductive fiber are a mesh structure made of stainless steel fibers, the corrosion-resistant layer is a polytetrafluoroethylene coating, the antistatic coating is a carbon-based conductive agent, the wear-resistant layer is a polyester fiber film coating, and the antistatic ring is a ring made of stainless steel fibers.

[0018] The above structure enhances the corrosion and wear resistance of the filter bag during use, and enables it to quickly release charges, prevent charge accumulation, and improve conductivity stability.

[0019] The antistatic filter bag provided by this utility model has the following advantages:

[0020] With an installation structure, pulling the slider moves the reset block, compressing the first spring, which in turn moves the fixed rod, making it easy to place the support ring at the bottom of the fixed frame. Releasing the slider allows the reset block to reset under the elastic force of the first spring, thus fixing the support ring with the fixed rod. This facilitates the installation of filter bags of different diameters and also makes them easy to disassemble, making the operation convenient.

[0021] By incorporating an adjustable structure, rotating the rotating block drives the threaded rod to rotate, causing the movable plate to move along the outside of the movable plate under the guidance of the guide rod. This, in turn, causes the movable plate to move the support rod downwards, making it easier to adjust according to the length of the filter bag. Additionally, under the elastic force of the second spring, the movable rod causes the arc-shaped plate to abut against the inner wall of the filter bag, thus facilitating support for filter bags of different diameters. This allows for support of filter bags of varying diameters and lengths, enhancing the support strength of the filter bags.

[0022] By incorporating a protective structure, first and second conductive fibers are embedded on both sides of the substrate, respectively. Static electricity is discharged through a conductive mesh, thus preventing charge accumulation. The corrosion-resistant layer resists the erosion of strong acids, strong alkalis, organic solvents, and various corrosive gases, making it difficult for dust to adhere and reducing the risk of corrosive substances adhering. The antistatic coating forms a conductive path on the surface of the corrosion-resistant layer, which can quickly discharge static charge and prevent accumulation. The wear-resistant layer forms a dense protective layer, effectively reducing direct fiber wear and combining wear resistance, breathability, and antistatic functions. At the same time, the antistatic ring, made of stainless steel fiber, can quickly release charge and enhance conductivity stability. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 This is a frontal cross-sectional view of the present invention.

[0025] Figure 3 This is a side sectional view of the present invention.

[0026] Figure 4 This is a three-dimensional structural diagram of the adjustment structure of this utility model;

[0027] Figure 5 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0028] The reference numerals in the diagram are as follows: 1. Fixed frame; 2. Mounting block; 3. Support ring; 4. Filter bag; 5. Mounting structure; 501. Internal groove; 502. First spring; 503. Reset block; 504. First slide groove; 505. Slider; 506. Second slide groove; 507. Fixed rod; 6. Adjustment structure; 601. Threaded rod; 602. Rotating block; 603. First fixed block; 604. First fixed cylinder; 605. Guide rod. 606. Moving plate; 607. Second fixing block; 608. Second fixing cylinder; 609. Limiting plate; 610. Support rod; 611. Base plate; 612. Second spring; 613. Movable rod; 614. Arc plate; 7. Protective structure; 701. Base material; 702. First conductive fiber; 703. Second conductive fiber; 704. Corrosion resistant layer; 705. Antistatic coating; 706. Wear resistant layer; 707. Antistatic ring. 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 Figure 1-5 The present invention provides an antistatic filter bag, comprising a fixed frame 1 and an adjustment structure 6.

[0031] Reference Figure 1 and Figure 2 As shown, mounting blocks 2 are fixed at the outer edges of the fixed frame 1. A support ring 3 is installed at the bottom of the fixed frame 1, and a filter bag 4 is fixed at the bottom of the support ring 3. An installation structure 5 is provided inside the fixed frame 1. The installation structure 5 includes an internal groove 501 inside the fixed frame 1. A first spring 502 is fixed inside the internal groove 501, and a reset block 503 is fixed to one end of the first spring 502. A first sliding groove 504 is provided at the top of the internal groove 501, and a slider 505 is fixed to the top of the reset block 503 inside the first sliding groove 504. A second sliding groove 506 is provided at the bottom of the internal groove 501, and a fixing rod 507 is fixed to the bottom of the reset block 503 inside the second sliding groove 506. The internal grooves 501 are evenly spaced inside the fixed frame 1. The reset blocks 503 and the internal grooves 501 form a telescopic structure through the first spring 502. The fixing rod 507 is L-shaped, and the support ring 3 and the fixed frame 1 are connected by the fixing rod 507.

[0032] By placing the filter bag 4 on the bottom of the fixed frame 1, and then pulling the slider 505 to move the reset block 503, the first spring 502 is compressed. This causes the reset block 503 to move the fixed rod 507, facilitating the placement of the support ring 3 at the bottom of the fixed frame 1. Then, by releasing the slider 505, the reset block 503 is reset under the elastic force of the first spring 502. This causes the reset block 503 to move the fixed rod 507, which then fixes the support ring 3. This facilitates the installation and disassembly of filter bags 4 of different diameters, making the operation convenient.

[0033] Reference Figures 2-4As shown, an adjustment structure 6 is installed at the bottom of the fixed frame 1. The adjustment structure 6 includes a threaded rod 601 installed inside the fixed frame 1. A rotating block 602 is fixed to the top of the threaded rod 601. A first fixing block 603 is provided on the outside of the threaded rod 601. A first fixing cylinder 604 is fixed on both sides of the first fixing block 603. A guide rod 605 is fixed on both sides of the first fixing cylinder 604. A movable plate 606 is installed on the outside of the threaded rod 601 and the guide rod 605. A second fixing block 607 is fixed to the bottom of the movable plate 606 outside the threaded rod 601. A second fixing cylinder 608 is fixed on both sides of the second fixing block 607. A limit plate 609 is fixed to the bottom of the guide rod 605. A support rod 610 is fixed at the edge of the bottom of the movable plate 606. A base plate 611 is fixed to the bottom of the support rod 610. The inner walls of the first fixing cylinder 604 and the second fixing cylinder 608 are connected to the inner walls of the first fixing cylinder 604 and the second fixing cylinder 608. Each part is fixed with a second spring 612. One end of the second spring 612 is fixed with a movable rod 613. One end of the movable rod 613 is fixed with an arc plate 614. A rotating ring is fixed to the outside of the threaded rod 601 inside the first fixed block 603. The threaded rod 601 and the first fixed block 603 are rotatably connected through the rotating ring. The guide rods 605 are symmetrically distributed on both sides of the first fixed cylinder 604. The top end of the guide rod 605 is fixedly connected to the bottom end of the fixed frame 1. The movable plate 606 is threadedly connected to the threaded rod 601. The bottom end of the threaded rod 601 passes through the interior of the limiting plate 609 and is rotatably connected to the interior of the limiting plate 609. The support rods 610 are evenly distributed at the top of the bottom plate 611. The movable rods 613 are connected to the first fixed cylinder 604 and the second fixed cylinder 608 respectively through the second spring 612 to form a telescopic structure. The arc plate 614 abuts against the inner wall of the filter bag 4.

[0034] Rotating the rotating block 602 drives the threaded rod 601 to rotate, causing the moving plate 606 to move on the outside of the moving plate 606 under the guidance of the guide rod 605. This causes the moving plate 606 to drive the support rod 610, which in turn causes the bottom plate 611 to move downward, making it easier to adjust according to the length of the filter bag 4. Under the elastic force of the second spring 612, the movable rod 613 drives the arc plate 614 to abut against the inner wall of the filter bag 4, thus facilitating the support of filter bags 4 of different diameters. This strengthens the support strength of the filter bag 4 by supporting filter bags 4 of different diameters and lengths.

[0035] Reference Figure 2 and Figure 5As shown, a protective structure 7 is fixed to the outside of the filter bag 4. The protective structure 7 includes a substrate 701 disposed inside the filter bag 4. A first conductive fiber 702 is fixed to one side of the substrate 701, and a second conductive fiber 703 is fixed to the other side of the substrate 701. A corrosion-resistant layer 704 is disposed on one side of the second conductive fiber 703, and an antistatic coating 705 is disposed on one side of the corrosion-resistant layer 704. A wear-resistant layer 706 is disposed on one side of the first conductive fiber 702. An antistatic ring 707 is fixed to the outside of the filter bag 4. The substrate 701 is made of polyester material. The first conductive fiber 702 and the second conductive fiber 703 are a mesh structure composed of stainless steel fibers. The corrosion-resistant layer 704 is a polytetrafluoroethylene coating. The antistatic coating 705 is a carbon-based conductive agent. The wear-resistant layer 706 is a polyester fiber film coating. The antistatic ring 707 is a ring made of stainless steel fibers.

[0036] The substrate 701 is a polyester filter bag, and the first conductive fiber 702 and the second conductive fiber 703 are stainless steel fibers forming a mesh structure. The first conductive fiber 702 and the second conductive fiber 703 are embedded on both sides of the substrate 701, respectively. Static electricity is discharged through the conductive mesh, thereby avoiding charge accumulation. The corrosion-resistant layer 704 is a polytetrafluoroethylene coating, which can resist the erosion of strong acids, strong alkalis, organic solvents and various corrosive gases, making it difficult for dust to adhere and reducing the risk of corrosive substances adhering. The antistatic coating 705 is a carbon-based conductive agent, which forms a conductive path on the surface of the corrosion-resistant layer 704, which can quickly discharge static charge and avoid accumulation. The wear-resistant layer 706 is a polyester fiber film coating, which can form a dense protective layer, effectively reducing direct fiber wear, and has wear resistance, air permeability and antistatic functions, making it suitable for general industrial dust environments. At the same time, the antistatic ring 707 is a stainless steel fiber ring, which can quickly release charge and enhance conductivity stability.

[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. An antistatic filter bag, comprising a fixed frame (1) and an adjusting structure (6); Characterized in that: The fixed frame (1) is fixed with mounting blocks (2) at the edge positions of the outer side, the bottom end of the fixed frame (1) is installed with a supporting ring (3), and the bottom end of the supporting ring (3) is fixed with a filter bag (4); The bottom end of the fixed frame (1) is installed with an adjusting structure (6), the adjusting structure (6) comprises a threaded rod (601) installed inside the fixed frame (1), the top end of the threaded rod (601) is fixed with a rotating block (602), the outer side of the threaded rod (601) is provided with a first fixed block (603), the two sides of the first fixed block (603) are fixed with first fixed cylinders (604), the two sides of the first fixed cylinder (604) are fixed with guide rods (605), the outer sides of the threaded rod (601) and the guide rods (605) are installed with a moving plate (606), the bottom end of the moving plate (606) on the outer side of the threaded rod (601) is fixed with a second fixed block (607), the two sides of the second fixed block (607) are fixed with second fixed cylinders (608), the bottom end of the guide rod (605) is fixed with a limiting plate (609), the edge positions of the bottom end of the moving plate (606) are fixed with supporting rods (610), and the bottom end of the supporting rod (610) is fixed with a bottom plate (611).

2. The anti-static filter bag of claim 1 wherein: The inside of the fixed frame (1) is provided with a mounting structure (5), the mounting structure (5) comprises an embedded groove (501) arranged inside the fixed frame (1), a first spring (502) is fixed inside the embedded groove (501), one end of the first spring (502) is fixed with a reset block (503), a first sliding groove (504) is arranged at the top end of the embedded groove (501), a sliding block (505) is fixed at the top end of the reset block (503) inside the first sliding groove (504), a second sliding groove (506) is arranged at the bottom end of the embedded groove (501), and a fixed rod (507) is fixed at the bottom end of the reset block (503) inside the second sliding groove (506).

3. The anti-static filter bag of claim 2 wherein: The embedded grooves (501) are equidistantly distributed inside the fixed frame (1), the reset block (503) and the embedded groove (501) constitute a telescopic structure through the first spring (502), the fixed rod (507) is arranged in an "L" shape, and the supporting ring (3) and the fixed frame (1) are connected through the fixed rod (507).

4. The anti-static filter bag of claim 1 wherein: The outer side of the first fixed block (603) is fixed with a rotating ring, the threaded rod (601) and the first fixed block (603) are rotatably connected through the rotating ring, the guide rod (605) is symmetrically distributed on both sides of the first fixed cylinder (604), the top end of the guide rod (605) is fixedly connected with the bottom end of the fixed frame (1), the movable plate (606) is threadedly connected with the threaded rod (601), the bottom end of the threaded rod (601) penetrates through the inside of the limiting plate (609) and is rotatably connected with the inside of the limiting plate (609), the support rods (610) are equidistantly distributed on the top end of the bottom plate (611).

5. The anti-static filter bag of claim 1 wherein: The inside of the first fixed cylinder (604) and the second fixed cylinder (608) is fixedly connected with the second spring (612), one end of the second spring (612) is fixedly connected with the movable rod (613), one end of the movable rod (613) is fixedly connected with the arc-shaped plate (614), the movable rod (613) is telescopically connected with the first fixed cylinder (604) and the second fixed cylinder (608) through the second spring (612), and the arc-shaped plate (614) abuts against the inner wall of the filter bag (4).

6. The anti-static filter bag of claim 1 wherein: The outer side of the filter bag (4) is fixedly connected with the protection structure (7), the protection structure (7) comprises a base material (701) arranged in the filter bag (4), one side of the base material (701) is fixedly connected with a first conductive fiber (702), the other side of the base material (701) is fixedly connected with a second conductive fiber (703), one side of the second conductive fiber (703) is provided with a corrosion-resistant layer (704), one side of the corrosion-resistant layer (704) is provided with an anti-static coating (705), one side of the first conductive fiber (702) is provided with a wear-resistant layer (706), and the outer side of the filter bag (4) is fixedly connected with an anti-static ring (707).

7. An antistatic filter bag according to claim 6, characterized in that: The base material (701) is made of polyester material, the first conductive fiber (702) and the second conductive fiber (703) are in a mesh structure formed by stainless steel fibers, the corrosion-resistant layer (704) is a polytetrafluoroethylene coating, the anti-static coating (705) is a carbon-based conductive agent, the wear-resistant layer (706) is a polyester fiber film coating, and the anti-static ring (707) is a circular ring made of stainless steel fibers.

Images