Filter bag pressing structure of bag filter

Abstract

The utility model discloses a filter bag pressing structure of a bag type filter, and relates to the technical field of bag type filters, in particular to the filter bag pressing structure of the bag type filter, which comprises a pattern plate, a steel ring and a cloth bag, the cloth bag is arranged at the top of an inner cavity of the steel ring, a support column is fixedly arranged on the inner side of the steel ring, and the support column is arranged on the inner side of the steel ring. And a limiting block is fixedly installed at the other end of the supporting column, a limiting spring is arranged on the outer surface of the supporting column, and a stress plate is movably installed on the outer surface of the supporting column. According to the filter bag pressing structure of the bag type filter, the clamping base is installed on the surface of the steel ring by turning over the clamping arms and screwing the fastening nuts, the gear can rotate by rotating the rotating disc, the gear drives the rack, the rack is located in the middle of the force bearing ring, when wind power is strong, a cloth bag is torn, and the cloth bag is prevented from being damaged. And the force bearing ring and the rack are matched with each other to replace the cloth bag to be stressed, so that the cloth bag is prevented from being damaged due to strong wind power, and the service life of the cloth bag is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bag filters, in particular to a filter bag pressing structure of a bag filter. Background Art

[0002] The dust collector bag is the heart of the bag-type dust collector and is generally called a dust collector bag or a dust filter bag. The dust collector bag is a key part in the operation of the bag-type dust collector. Usually, the cylindrical filter bag is hung vertically in the dust collector. The fabric and design of the dust collector bag should strive for high-efficiency filtration, easy dust removal and durability. The connection between the filter bag and the flower plate of the bag-type dust collector usually adopts the elastic ring expansion connection form of the filter bag. The application number (CN202221634786.9) discloses a filter bag clamping structure used in the bag-type dust collector, which proposes that "under the condition of large wind speed and pressure difference, it is easy to loosen, resulting in poor dust removal effect. The filter bag clamping device of the utility model has a simple structure and reliable filter bag clamping, which can completely eliminate this loose phenomenon. The filter bag is placed along the circular hole of the flower plate, and then the locking nut is tightened. Since the extended edge of the filter bag is located between the pressure plate and the flower plate, the filter bag can be fixed under the action of the pressure plate, which solves the problem that the filter bag of the existing bag-type dust collector is difficult to clamp and easy to disengage. In a large dust collector, a large number of dust removal bags are required, and there are also many holes in the flower plate. If each bag needs to be fixed with a nut, it will be a huge amount of engineering work, and the disassembly and assembly efficiency will be very low. In addition, the wind speed and pressure difference generated by the large filter will be greater, so the bag body and the bag ring will be pulled by force for a long time, which may easily cause the bag to tear and damage, and reduce the service life. Therefore, a filter bag clamping structure of a bag filter is proposed here to solve the above problems. Summary of the invention

[0003] In view of the deficiencies in the prior art, the utility model provides a filter bag pressing structure for a bag filter, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a filter bag clamping structure of a bag filter, comprising a flower plate, a steel ring, and a cloth bag, the cloth bag being installed on the top of the inner cavity of the steel ring, a support column being fixedly installed on the inner side of the steel ring, a limit block being fixedly installed on the other end of the support column, a limit spring being provided on the outer surface of the support column, a force plate being movably installed on the outer surface of the support column, the force plate being in a bent shape, a positioning block being fixedly installed on the top of the force plate, a positioning groove being provided inside the steel ring, the support column passing through the cloth bag and being connected to the steel ring, and a cloth bag of ten centimeters is reserved for the connection between the cloth bag and the steel ring and the contact between the support column and the cloth bag.

[0005] Optionally, a clamping base is provided on the outer surface of the steel ring, a clamping arm is hinged on one side of the clamping base surface through a hinge, a tightening stud is fixedly installed on the other side of the clamping base surface, and a tightening nut is threadedly connected to the outer surface of the tightening stud.

[0006] Optionally, a drive sleeve is fixedly mounted on one side of the clamping base, a turntable is provided on one side of the drive sleeve, a gear is fixedly mounted on the output shaft of the turntable, a rack is meshed on one side of the gear, and a load-bearing ring is installed on the outer surface of the cloth bag.

[0007] Optionally, a limit bolt is threadedly connected to the edge of the turntable surface, and the length of the limit bolt is greater than the distance from the turntable surface to the driving sleeve surface.

[0008] Optionally, a sliding block is fixedly mounted on one side of the rack, the sliding block is in the shape of a T-shaped protrusion, and a T-shaped sliding groove matched with the sliding block is provided inside the driving sleeve.

[0009] Optionally, a tightening groove is provided in the middle of the clamping arm, the tightening stud is located in the tightening groove, and the tightening nut is in interference contact with the tightening groove.

[0010] Optionally, the diameter of the limiting block is one to two centimeters larger than the diameter of the supporting column, and the positioning block does not contact the inner side of the steel ring when not driven.

[0011] The utility model provides a filter bag pressing structure of a bag filter, which has the following beneficial effects:

[0012] 1. The bag-type filter's filter bag compression structure inserts the bag directly into the interior of the flower plate. At this time, the steel ring will limit the bag, so that the installation can be completed, which can make the installation process more convenient. When the force-bearing plate is affected by the wind, it will move inward. At this time, the force-bearing plate will drive the positioning block to move inward at the same time, so that the positioning block drives part of the bag into the positioning groove, so that passive positioning can be achieved under strong winds, and the positioning can be released when there is no wind for easy disassembly, which greatly improves convenience.

[0013] 2. The filter bag clamping structure of the bag filter is to install the clamping base on the surface of the steel ring by flipping the clamping arm and tightening the clamping nut. The gear can be rotated by turning the turntable, so that the gear drives the rack, so that the rack is in the middle of the load-bearing ring. When the wind is strong, the bag will be torn, and the cooperation between the load-bearing ring and the rack can replace the bag to bear the force, so as to avoid the bag being damaged by the strong wind and greatly improve the service life of the bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a side view of the structure of the utility model;

[0015] Figure 2 It is a schematic structural diagram of a cross-section of the steel ring of the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the force-bearing plate of the utility model;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the clamping arm of the utility model;

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the rack of the utility model.

[0019] In the figure: 1. flower plate; 2. steel ring; 3. cloth bag; 4. support column; 5. limit block; 6. limit spring; 7. force plate; 8. positioning block; 9. positioning groove; 10. clamping base; 11. clamping arm; 12. tightening stud; 13. tightening nut; 14. driving sleeve; 15. turntable; 16. limit bolt; 17. gear; 18. rack; 19. slider; 20. load-bearing ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figure 1 , Figure 2 and Figure 3The utility model provides a technical solution: a filter bag pressing structure of a bag filter, comprising a flower plate 1, a steel ring 2, and a cloth bag 3. The cloth bag 3 is installed on the top of the inner cavity of the steel ring 2. A support column 4 is fixedly installed on the inner side of the steel ring 2. The support column 4 can support the limit spring 6 to prevent the limit spring 6 from bending when it is deformed. A limit block 5 is fixedly installed on the other end of the support column 4. The diameter of the limit block 5 is one to two centimeters larger than the diameter of the support column 4. The limit block 5 can be used to limit the stroke of the force plate 7 to prevent the force plate 7 from separating from the outer surface of the support column 4. The positioning block 8 does not contact the inner side of the steel ring 2 when it is not driven. The cloth bag 3 can be directly disassembled when there is no wind, and the disassembly and assembly are convenient. A limiting spring 6 is provided on the outer surface of the support column 4. The elastic force provided by the limiting spring 6 can be used to reset the force plate 7, so that the positioning block 8 is not in contact with the steel ring 2, which is convenient for the user to disassemble. The outer surface of the support column 4 is movably installed with a force plate 7. The shape of the force plate 7 is bent, which can make the force plate 7 easier to bear force and improve the positioning effect. A positioning block 8 is fixedly installed on the top of the force plate 7, and a positioning groove 9 is opened inside the steel ring 2. The support column 4 passes through the cloth bag 3 and is connected to the steel ring 2. A ten-centimeter length of cloth bag 3 is reserved at the connecting part between the cloth bag 3 and the steel ring 2 and the contact part between the support column 4 and the cloth bag 3, so that the positioning block 8 can drive sufficient cloth bags 3 into the positioning groove 9 for compression.

[0022] See also Figures 1 to 5 A clamping base 10 is provided on the outer surface of the steel ring 2. When installing the clamping base 10, part of the cloth bag 3 is lifted so that the clamping arm 11 clamps part of the cloth bag 3 during clamping, so that the steel ring 2 and the cloth bag 3 can be compressed for the second time. A clamping arm 11 is hinged on one side of the surface of the clamping base 10 through a hinge. A tightening groove is provided in the middle of the clamping arm 11. A tightening stud 12 is in the tightening groove. A tightening nut 13 is in interference contact with the tightening groove. The clamping base 10 can be disassembled at any time, so that the driving sleeve 14 and the clamping base 10 can be flexibly replaced to reduce losses. A tightening stud 12 is fixedly installed on the other side of the surface of the clamping base 10, and a tightening nut 13 is threadedly connected to the outer surface of the tightening stud 12.

[0023] See also Figure 1 , Figure 4 and Figure 5A driving sleeve 14 is fixedly installed on one side of the clamping base 10, and a turntable 15 is provided on one side of the driving sleeve 14. A limit bolt 16 is threadedly connected to the edge of the surface of the turntable 15. The length of the limit bolt 16 is greater than the distance from the surface of the turntable 15 to the surface of the driving sleeve 14. By tightening the limit bolt 16, the limit bolt 16 and the driving sleeve 14 are in close contact, which can prevent the gear 17 from rotating at will. A gear 17 is fixedly installed on the output shaft of the turntable 15, and a rack 18 is meshed on one side of the gear 17. A slider 1 is fixedly installed on one side of the rack 18. 9. The slider 19 is in the shape of a T-shaped protrusion. A T-shaped groove matched with the slider 19 is provided inside the driving sleeve 14. The slider 19 can be used to limit the rack 18, so that the rack 18 is more stable during driving to prevent it from shaking. The racks 18 on both sides are used to limit the load-bearing ring 20 at the same time to avoid the load-bearing ring 20 from being deformed randomly and the cloth bag 3 from shaking randomly to affect the load-bearing of the rack 18. The outer surface of the cloth bag 3 is installed with a load-bearing ring 20, which is made of rubber. The elasticity of the rubber can make the load-bearing ring 20 pass through the flower plate 1 smoothly.

[0024] To sum up, the filter bag clamping structure of the bag filter, when in use, first the user needs to directly insert it into the interior of the flower plate 1, at this time the steel ring 2 will limit the cloth bag 3, then flip the clamping arm 11, tighten the clamping nut 13 to install the clamping base 10 on the surface of the steel ring 2, then turn the turntable 15 and the gear 17 to rotate, so that the gear 17 drives the rack 18, so that the rack 18 is in the middle of the load-bearing ring 20, when the wind is strong, it will cause tearing to the cloth bag 3, and the load-bearing ring 20 and the rack 18 cooperate with each other to replace the cloth bag 3 to bear the force, and at the same time, when the force-bearing plate 7 is affected by the wind, it will move inward, and at this time the force-bearing plate 7 will drive the positioning block 8 to move inward at the same time, so that the positioning block 8 drives part of the cloth bag 3 to enter the positioning groove 9, so that passive positioning can be achieved under strong wind, and the positioning is released when there is no wind for easy disassembly, that's it.

[0025] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. 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 expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter bag pressing structure for a bag filter, comprising a flower plate (1), a steel ring (2), and a cloth bag (3), wherein the cloth bag (3) is mounted on the top of the inner cavity of the steel ring (2), and characterized in that: A support column (4) is fixedly mounted on the inner side of the steel ring (2), a limit block (5) is fixedly mounted on the other end of the support column (4), a limit spring (6) is arranged on the outer surface of the support column (4), a force plate (7) is movably mounted on the outer surface of the support column (4), the force plate (7) is in a bent shape, a positioning block (8) is fixedly mounted on the top of the force plate (7), a positioning groove (9) is provided inside the steel ring (2), the support column (4) passes through the cloth bag (3) and is connected to the steel ring (2), and a cloth bag (3) with a length of ten centimeters is reserved at the connection part between the cloth bag (3) and the steel ring (2) and the contact part between the support column (4) and the cloth bag (3).

2. The filter bag pressing structure of a bag filter according to claim 1, characterized in that: The outer surface of the steel ring (2) is provided with a clamping base (10), one side of the surface of the clamping base (10) is hingedly connected to a clamping arm (11), the other side of the surface of the clamping base (10) is fixedly mounted with a tightening stud (12), and the outer surface of the tightening stud (12) is threadedly connected with a tightening nut (13).

3. The filter bag pressing structure of a bag filter according to claim 2, characterized in that: A drive sleeve (14) is fixedly mounted on one side of the clamping base (10), a turntable (15) is provided on one side of the drive sleeve (14), a gear (17) is fixedly mounted on the output shaft of the turntable (15), a rack (18) is meshed on one side of the gear (17), and a bearing ring (20) is mounted on the outer surface of the cloth bag (3).

4. The filter bag pressing structure of a bag filter according to claim 3, characterized in that: A limit bolt (16) is threadedly connected to the edge of the surface of the rotating disk (15), and the length of the limit bolt (16) is greater than the distance between the surface of the rotating disk (15) and the surface of the driving sleeve (14).

5. The filter bag pressing structure of a bag filter according to claim 3, characterized in that: A sliding block (19) is fixedly mounted on one side of the rack (18); the sliding block (19) is in the shape of a T-shaped protrusion; a T-shaped sliding groove matching the sliding block (19) is provided inside the driving sleeve (14).

6. The filter bag pressing structure of a bag filter according to claim 2, characterized in that: A tightening groove is provided in the middle of the clamping arm (11), the tightening stud (12) is located in the tightening groove, and the tightening nut (13) is in interference contact with the tightening groove.

7. The filter bag pressing structure of a bag filter according to claim 1, characterized in that: The diameter of the limit block (5) is one to two centimeters larger than the diameter of the support column (4), and the positioning block (8) does not contact the inner side of the steel ring (2) when not driven.

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