Efficient filter bag for VOC (volatile organic compound) gas purifier

Abstract

The utility model belongs to the technical field of VOC (volatile organic compound) gas purifiers, and discloses a high-efficiency filter bag for a VOC gas purifier, which comprises a fixing ring, the bottom of the fixing ring is fixedly connected with a support framework, the outer side of the support framework is sleeved with a filter bag body, the top end of the filter bag body is fixedly connected with a connecting ring, a propping ring is arranged below the connecting ring, and the propping ring is fixedly connected with the support framework. The connecting ring is located between the abutting ring and the fixing ring, the abutting ring and the fixing ring are connected through the positioning assembly, and the abutting ring is connected with the fixing ring through the positioning assembly, so that the connecting ring between the fixing ring and the abutting ring can be clamped and fixed, the filter bag body can be fixed, and the filter bag body can be conveniently mounted and dismounted; the supporting framework is used for supporting the filter bag body, when VOC gas flows from the outer side of the filter bag body to the inner side of the filter bag body, certain impact force can be caused to the filter bag body, the supporting framework can relieve pressure borne by the filter bag body, and damage to the filter bag body is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of VOC gas purifiers, in particular to a high-efficiency filter bag for a VOC gas purifier. Background Art

[0002] A VOC gas purifier is a device used to treat volatile organic compounds (VOCs). The filter bag is a key component in the VOC gas purifier. There are tiny pores between the fibers of the filter bag. When VOC gas passes through, particles with a particle size larger than the pores (such as dust, some large molecular VOC aggregates, etc.) are intercepted on the surface of the filter bag. The material of the filter bag itself has a certain adsorption capacity and can adsorb some VOC molecules.

[0003] Chinese patent application number 202120778169.5 discloses a high-efficiency filter bag for a VOC gas purifier, comprising a fixing device, wherein a cleaning device is fixedly connected to the interior of the fixing device, wherein the fixing device comprises a connecting block, a connecting plate, an outer frame, a filter bag, a connecting hole, a thread, a clamping groove, a support plate, a movable groove, a connecting ring, a positioning column, a machine groove, a positioning groove, a threaded groove and a positioning ring, wherein the filter bag is arranged in the middle of the fixing device, and the connecting holes are evenly and symmetrically opened at both ends of the filter bag. The utility model can clamp the connecting hole by the positioning column inside the fixing device, and then fix the connecting hole clamped to the inside of the positioning column by the outer frame, thereby achieving the fixing of the connecting hole, which is conducive to the smooth progress of subsequent filtering work. The inner end face of the connecting hole can be cleaned by the cleaning pad inside the cleaning device, thereby removing the garbage adsorbed on the inner end face of the connecting hole, and achieving the connection hole to efficiently perform filtering work.

[0004] However, the above-mentioned high-efficiency filter bags for VOC gas purifiers have the following shortcomings during actual use: the filter bags are very inconvenient to disassemble and assemble, and are time-consuming and labor-intensive to replace.

[0005] Therefore, in order to solve the above problems, a high-efficiency filter bag for VOC gas purifier is proposed. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a high-efficiency filter bag for a VOC gas purifier, which has the advantage of rapid disassembly and assembly of the filter bag body.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a high-efficiency filter bag for a VOC gas purifier, comprising a fixing ring, the bottom of the fixing ring is fixedly connected to a supporting frame, the outer side of the supporting frame is sleeved with a filter bag body, the top of the filter bag body is fixedly connected to a connecting ring, a tightening ring is provided below the connecting ring, the connecting ring is located between the tightening ring and the fixing ring, and the tightening ring and the fixing ring are connected by a positioning assembly.

[0008] Preferably, the support frame includes a plurality of ring bodies equidistantly arranged above and below, the tops of the ring bodies are fixedly connected with evenly distributed vertical rods, vertical rods are fixedly connected between adjacent ring bodies above and below, and the top of the uppermost vertical rod is fixedly connected to a fixed ring.

[0009] Preferably, a first sealing ring is connected to the bottom of the fixing ring at a position corresponding to the connecting ring, and the first sealing ring is in close contact with the top surface of the connecting ring.

[0010] Preferably, the top end surface of the tightening ring is connected to a second sealing ring, and the second sealing ring is tightly attached to the bottom end surface of the connecting ring.

[0011] Preferably, the positioning assembly includes a fixing ear fixedly connected to the tightening ring, the top of the fixing ear is fixedly connected to an insertion rod, a slot is provided on the insertion rod, a fixing block is fixed at a position on the fixing ring corresponding to the insertion rod, an insertion slot is provided at the bottom of the fixing block corresponding to the insertion rod, one side of the fixing block is fixedly connected to a cylinder, a clamping column is provided in the cylinder, the clamping column passes through the fixing block and extends into the clamping slot, the tail end face of the clamping column is connected to a movable rod, a spring is provided on the movable rod, and the end of the movable rod passes through the cylinder and is connected to a pulling block.

[0012] Preferably, the size of the insertion rod matches the size of the insertion slot, the spring is arranged in a cylinder, and the inner diameter of the cylinder is greater than the width of the clamping column.

[0013] Preferably, the positions of the extending rod corresponding to the clamping column are both provided with inclined surfaces.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model sets a positioning assembly, and the tightening ring is connected to the fixing ring through the positioning assembly, so that the connecting ring between the fixing ring and the tightening ring can be clamped and fixed, and the filter bag can be fixed, so as to facilitate the installation and removal of the filter bag;

[0016] 2. The utility model provides a support frame to support the filter bag. When the VOC gas flows from the outside to the inside of the filter bag, it will cause a certain impact force on the filter bag. The support frame can relieve the pressure on the filter bag and reduce damage to the filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the fixing ring position of the present invention;

[0020] Figure 4 This is a schematic structural diagram of the support frame of the utility model;

[0021] Figure 5 For this utility model Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 6 For this utility model Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0023] In the figure: 1. Fixed ring;

[0024] 2. Support frame; 201. Ring body; 202. Vertical rod;

[0025] 3. Filter bag body; 4. Connecting ring; 5. Tightening ring;

[0026] 6. Positioning assembly; 601. Fixing ear; 602. Insert rod; 603. Slot; 604. Fixing block; 605. Insert slot; 606. Cylinder; 607. Column; 608. Movable rod; 609. Spring; 610. Pull block;

[0027] 7. First sealing ring; 8. Second sealing ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] like Figures 1 to 6As shown, the utility model provides a high-efficiency filter bag for a VOC gas purifier, including a fixing ring 1, the bottom of the fixing ring 1 is fixedly connected to a supporting frame 2, the outer side of the supporting frame 2 is sleeved with a filter bag body 3, the top of the filter bag body 3 is fixedly connected to a connecting ring 4, a tightening ring 5 is provided below the connecting ring 4, the connecting ring 4 is between the tightening ring 5 and the fixing ring 1, the tightening ring 5 and the fixing ring 1 are connected by a positioning assembly 6, the tightening ring 5 is connected to the fixing ring 1 by the positioning assembly 6, the connecting ring 4 between the fixing ring 1 and the tightening ring 5 can be clamped and fixed, and the filter bag body 3 can also be fixed to facilitate the installation and disassembly of the filter bag body 3.

[0030] Specifically, the support skeleton 2 includes a plurality of ring bodies 201 equidistantly arranged above and below, and the tops of the ring bodies 201 are fixedly connected with evenly distributed vertical rods 202. The vertical rods 202 are fixedly connected between the upper and lower adjacent ring bodies 201, and the tops of the vertical rods 202 at the top are fixedly connected to the fixed ring 1. The support skeleton 2 is used to support the filter bag 3. When the VOC gas flows from the outside to the inside of the filter bag 3, it will cause a certain impact force on the filter bag 3. The support skeleton 2 can relieve the pressure on the filter bag 3 and reduce damage to the filter bag 3.

[0031] Furthermore, a first sealing ring 7 is connected to the bottom of the fixing ring 1 at a position corresponding to the connecting ring 4 . The first sealing ring 7 is in close contact with the top surface of the connecting ring 4 to enhance the sealing between the fixing ring 1 and the connecting ring 4 .

[0032] Furthermore, the top end surface of the clamping ring 5 is connected to a second sealing ring 8 , and the second sealing ring 8 is in close contact with the bottom end surface of the connecting ring 4 , thereby enhancing the sealing between the clamping ring 5 and the connecting ring 4 .

[0033] It is worth noting that the positioning assembly 6 includes a fixed ear 601 fixedly connected to the tightening ring 5, the top of the fixed ear 601 is fixedly connected to an insertion rod 602, and a slot 603 is provided on the insertion rod 602. A fixed block 604 is fixed at a position on the fixed ring 1 corresponding to the insertion rod 602, and an insertion slot 605 is provided at the bottom of the fixed block 604 corresponding to the insertion rod 602. A cylinder 606 is fixedly connected to one side of the fixed block 604, and a clamping column 607 is provided in the cylinder 606. The clamping column 607 passes through the fixed block 604 and extends into the clamping slot 603. The tail end face of the clamping column 607 is connected to a movable rod 608, and a spring 609 is sleeved on the movable rod 608. The end of the movable rod 608 passes through the cylinder 606 and is connected to a pulling block 610.

[0034] It is worth noting that the size of the insertion rod 602 matches the size of the insertion slot 605 , the spring 609 is disposed in the cylinder 606 , and the inner diameter of the cylinder 606 is greater than the width of the clamping column 607 .

[0035] It is worth mentioning that the positions corresponding to the insertion rod 602 and the clamping column 607 are both provided with inclined surfaces.

[0036] Working principle and process: When the filter bag is in use, the VOC gas flows from the outside to the inside of the filter bag body 3, which will cause a certain impact force on the filter bag body 3. The support frame 2 can relieve the pressure on the filter bag body 3 and reduce damage to the filter bag body 3. When the filter bag body 3 needs to be replaced, the pulling block 610 of the positioning assembly 6 is pulled outward, and then the movable rod 608 drives the clamping column 607 to move, so that the clamping column 607 can leave the clamping groove 603 on the insertion rod 602, and then push the tightening ring 5 downward to make the insertion rod 602 leave the insertion groove 605, and then the tightening ring 5 can be removed, and then the connecting ring 4 and the filter bag body 3 are removed from the support frame 2, and a new filter bag body 3 can be replaced. After the connecting ring 4 is sleeved on the supporting frame 2, the tightening ring 5 is placed on the outside of the filter bag body 3, and after the fixing ear 601 and the fixing block 604 are aligned up and down, the tightening ring 5 is pushed upward until the connecting ring 4 is close to the bottom end surface of the fixing ring 1 and the top end surface of the tightening ring 5. At this time, the insertion rod 602 is inserted into the insertion groove 605, and the insertion rod 602 squeezes the clamping column 607. Under the action of the inclined surface, the clamping column 607 is displaced and compresses the spring 609. When the position of the clamping groove 603 corresponds to the position of the clamping column 607, the elastic force of the spring 609 is released, pushing the clamping column 607 into the clamping groove 603, and the fixing ring 1 and the tightening ring 5 can be connected to clamp and fix the connecting ring 4, that is, fix the filter bag body 3 on the supporting frame 2.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency filter bag for a VOC gas purifier, comprising a fixing ring (1), characterized in that: The bottom of the fixing ring (1) is fixedly connected to a support frame (2), the outer side of the support frame (2) is provided with a filter bag (3), the top of the filter bag (3) is fixedly connected to a connecting ring (4), a tightening ring (5) is provided below the connecting ring (4), the connecting ring (4) is located between the tightening ring (5) and the fixing ring (1), and the tightening ring (5) and the fixing ring (1) are connected via a positioning assembly (6).

2. The high-efficiency filter bag for VOC gas purifier according to claim 1, characterized in that: The support frame (2) comprises a plurality of ring bodies (201) equidistantly arranged vertically, the tops of the ring bodies (201) are fixedly connected to evenly distributed vertical rods (202), vertical rods (202) are fixedly connected between adjacent ring bodies (201) above and below, and the top end of the vertical rod (202) at the top is fixedly connected to the fixed ring (1).

3. The high-efficiency filter bag for VOC gas purifier according to claim 1, characterized in that: A first sealing ring (7) is connected to the bottom of the fixing ring (1) at a position corresponding to the connecting ring (4), and the first sealing ring (7) is in close contact with the top surface of the connecting ring (4).

4. The high-efficiency filter bag for VOC gas purifier according to claim 1, characterized in that: The top end surface of the abutting ring (5) is connected to a second sealing ring (8), and the second sealing ring (8) is in close contact with the bottom end surface of the connecting ring (4).

5. The high-efficiency filter bag for VOC gas purifier according to claim 1, characterized in that: The positioning assembly (6) comprises a fixing ear (601) fixedly connected to the tightening ring (5); the top of the fixing ear (601) is fixedly connected to an insertion rod (602); the insertion rod (602) is provided with a slot (603); a fixing block (604) is fixed at a position on the fixing ring (1) corresponding to the insertion rod (602); the bottom of the fixing block (604) is provided with an insertion slot (605) at a position corresponding to the insertion rod (602); One side of the fixed block (604) is fixedly connected to a cylinder (606), a clamping column (607) is provided in the cylinder (606), the clamping column (607) passes through the fixed block (604) and extends into the clamping groove (603), the tail end surface of the clamping column (607) is connected to a movable rod (608), a spring (609) is sleeved on the movable rod (608), and the end of the movable rod (608) passes through the cylinder (606) and is connected to a pulling block (610).

6. The high-efficiency filter bag for VOC gas purifier according to claim 5, characterized in that: The size of the insertion rod (602) matches the size of the insertion slot (605), and the spring (609) is arranged in the cylinder (606). The inner diameter of the cylinder (606) is larger than the width of the clamping column (607).

7. The high-efficiency filter bag for VOC gas purifier according to claim 5, characterized in that: The positions of the extending rod (602) and the clamping column (607) corresponding to each other are both provided with inclined surfaces.

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