Bag type filter with pressing and sealing structure

Abstract

The utility model relates to the technical field of bag filters, and discloses a bag filter with a compression sealing structure, which comprises a barrel and a filter bag, the outer side of the barrel is fixedly connected with a supporting seat, the bottom of the supporting seat is in contact with the ground, and the left side and the right side of the barrel are fixedly connected with fixing boxes. According to the bag type filter with the compression sealing structure, a screw rod drives a screw sleeve to move downwards under the action of threads in the rotating process of the screw rod, the bottom of an inserting rod can penetrate through an inner cavity of an inserting hole, a sealing plate is limited, then the fixing effect on the sealing plate is improved, and the sealing plate is prevented from shifting in the using process; and a reset spring extends inwards under the action of elastic force and drives a guide rod to move inwards, so that an insertion block is inserted into an inner cavity of an insertion groove, the fixing effect on the sealing plate and the sealing ring is further improved, meanwhile, the sealing effect of the sealing ring in the using process is improved, and the service life of the sealing ring is prolonged.

Description

Technical Field

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

[0002] Bag filter is a kind of equipment commonly used to remove impurities in the medium on the medium pipeline. The most common filter is bag filter. Bag filter is a common pressure filter. Its main structure includes a cylinder, a filter cartridge is arranged in the cylinder, and a medium inlet and a medium outlet are arranged on the periphery of the cylinder.

[0003] Although the existing technology has met the needs of users to a certain extent, there are still certain defects in the use process. The specific problems are as follows: At present, bag filters all use strong force to compress the filter bag. After physical deformation and extrusion, the sealing ring may not be able to effectively restore its elasticity, resulting in a gap between the filter bag and the retaining ring. The sealing effect is not ideal, and leakage is prone to occur during material filtration.

[0004] In order to solve the above problems, we have made improvements and proposed a bag filter with a compression sealing structure. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a bag filter with a compression sealing structure, comprising a cylinder and a filter bag, the outer side of the cylinder is fixedly connected to a support seat, and the bottom of the support seat is in contact with the ground, the left and right sides of the cylinder are fixedly connected to fixing boxes, the top of the inner wall of the cylinder is fixedly connected to a limiting ring, and the left and right sides of the top of the cylinder are provided with limiting grooves, the top of the cylinder is fixedly connected to a cylinder cover, the left and right sides of the top of the cylinder cover are fixedly connected to an adjustment box, the top of the filter bag is fixedly connected to a sealing ring, the left and right sides of the top of the sealing ring are fixedly connected to sealing plates, the sealing plates are clamped in the inner cavity of the limiting groove, and the sealing ring is mounted on the top of the limiting ring.

[0006] Preferably, the inner cavity of the regulating box is movably connected to a screw via a bearing, the surface of the screw is threadedly connected to a screw sleeve, the outer side of the screw sleeve is fixedly connected to an insertion rod, and holes are provided on the left and right sides of the top of the barrel cover, the top of the inner surface of the sealing plate, and the left and right sides of the inner surface of the limiting ring, and the bottom of the insertion rod passes through the inner cavity of the hole and extends to the bottom of the limiting ring.

[0007] Preferably, a slide groove is provided on the inner side of the inner wall of the regulating box, a slider is fixedly connected to the inner side of the screw sleeve, and the inner side of the slider is slidably connected to the inner cavity of the slide groove.

[0008] Preferably, a through slot is formed on the outer side of the regulating box, and the outer side of the insertion rod passes through the inner cavity of the through slot and extends to the outer side of the regulating box.

[0009] Preferably, a guide rod is provided through the inner cavity of the fixed box, a return spring is sleeved on the surface of the guide rod, an insert block is fixedly connected to the inner side of the guide rod, slots are provided on the outer side of the inner surface of the sealing plate and the tops of the left and right sides of the cylinder, and the outer side of the insert block is inserted into the inner cavity of the slot.

[0010] Preferably, a magnetic pull plate is fixedly connected to the outer side of the guide rod, and magnetic blocks are inlaid on the top and bottom of the outer side of the fixed box, and the magnetic pull plate and the magnetic blocks are magnetically connected.

[0011] Compared with the prior art, the utility model provides a bag filter with a compression sealing structure, which has the following beneficial effects:

[0012] 1. The bag filter with a compression sealing structure drives the screw sleeve to move downward by utilizing the effect of the thread during the rotation of the screw rod, so that the bottom of the plug rod can penetrate the inner cavity of the plug hole to limit the sealing plate, thereby improving the fixing effect of the sealing plate and avoiding displacement of the sealing plate during use. The reset spring extends inward by utilizing the elastic force and drives the guide rod to move inward, so that the plug block is inserted into the inner cavity of the slot, further improving the fixing effect of the sealing plate and the sealing ring, and at the same time improving the sealing effect of the sealing ring during use, thereby increasing the service life of the sealing ring.

[0013] 2. The bag filter with a compression sealing structure can effectively improve the stability of the screw sleeve during the up and down movement by setting a slide groove and a slider, and prevent the screw sleeve from moving with the rotation of the screw. By setting a magnetic block and a magnetic pull plate, the guide rod can be limited by magnetic force to prevent the guide rod from shifting during use, thereby improving the plug-in effect between the plug block and the slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 4 It is a schematic diagram of the structure of the filter bag of the utility model.

[0019] Among them: 1. Cylinder body; 2. Cylinder cover; 3. Adjustment box; 4. Fixing box; 5. Sealing plate; 6. Support seat; 7. Screw; 8. Screw sleeve; 9. Insert rod; 10. Through groove; 11. Slide groove; 12. Slider; 13. Sealing ring; 14. Filter bag; 15. Limiting ring; 16. Insert block; 17. Slot; 18. Guide rod; 19. Reset spring; 20. Magnetic pull plate; 21. Magnetic block; 22. Socket; 23. Limiting groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 A bag filter with a compression sealing structure comprises a cylinder 1 and a filter bag 14. A support seat 6 is fixedly connected to the outer side of the cylinder 1, and the bottom of the support seat 6 is in contact with the ground. A fixing box 4 is fixedly connected to the left and right sides of the cylinder 1. A limiting ring 15 is fixedly connected to the top of the inner wall of the cylinder 1. Limiting grooves 23 are provided on the left and right sides of the top of the cylinder 1. A cylinder cover 2 is fixedly connected to the top of the cylinder 1, and an adjusting box 3 is fixedly connected to the left and right sides of the top of the cylinder cover 2. A sealing ring 13 is fixedly connected to the top of the filter bag 14, and sealing plates 5 are fixedly connected to the left and right sides of the top of the sealing ring 13. The sealing plate 5 is clamped in the inner cavity of the limiting groove 23, and the sealing ring 13 is mounted on the top of the limiting ring 15.

[0022] Through the above technical scheme, by setting the limiting ring 15, the sealing ring 13 can be installed, and then the filter bag 14 can be initially limited. By setting the limiting groove 23, the sealing plate 5 can be fixed. At the same time, the outer side of the sealing plate 5 is tightly fitted with the inner wall of the limiting groove 23 to improve the overall sealing effect.

[0023] Specifically, the inner cavity of the adjusting box 3 is movably connected with a screw rod 7 through a bearing, and a screw sleeve 8 is threadedly connected to the surface of the screw rod 7, and an insert rod 9 is fixedly connected to the outer side of the screw sleeve 8. Insertion holes 22 are provided on the left and right sides of the top of the cylinder cover 2, the top of the inner surface of the sealing plate 5, and the left and right sides of the inner surface of the limiting ring 15. The bottom of the insert rod 9 passes through the inner cavity of the insertion hole 22 and extends to the bottom of the limiting ring 15. A slide groove 11 is provided on the inner side of the inner wall of the adjusting box 3, and a slider 12 is fixedly connected to the inner side of the screw sleeve 8. The inner side of the slider 12 is slidably connected to the inner cavity of the slide groove 11. A through groove 10 is provided on the outer side of the adjusting box 3, and the outer side of the insert rod 9 passes through the inner cavity of the through groove 10 and extends to the outside of the adjusting box 3.

[0024] Through the above technical scheme, the screw sleeve 8 is driven to move downward by the action of the thread of the screw rod 7 during the rotation process, so that the bottom of the insertion rod 9 can pass through the inner cavity of the insertion hole 22 to limit the sealing plate 5, thereby improving the fixing effect of the sealing plate 5 and avoiding the sealing plate 5 from shifting during use. By setting the sliding groove 11 and the slider 12, the stability of the screw sleeve 8 during the up and down movement can be effectively improved to avoid the screw sleeve 8 from moving with the rotation of the screw rod 7.

[0025] Specifically, a guide rod 18 is provided through the inner cavity of the fixed box 4, a return spring 19 is sleeved on the surface of the guide rod 18, an insert block 16 is fixedly connected to the inner side of the guide rod 18, slots 17 are provided on the outer side of the inner surface of the sealing plate 5 and the tops on the left and right sides of the cylinder 1, the outer side of the insert block 16 is inserted into the inner cavity of the slot 17, a magnetic pull plate 20 is fixedly connected to the outer side of the guide rod 18, and magnetic blocks 21 are inlaid on the top and bottom of the outer side of the fixed box 4, and the magnetic pull plate 20 and the magnetic block 21 are magnetically connected.

[0026] Through the above technical scheme, the reset spring 19 extends inward by the elastic force and drives the guide rod 18 to move inward, so that the plug block 16 is inserted into the inner cavity of the slot 17, further improving the fixing effect of the sealing plate 5 and the sealing ring 13, while improving the sealing effect of the sealing ring 13 during use, and improving the service life of the sealing ring 13. By setting the magnetic block 21 and the magnetic pull plate 20, the guide rod 18 can be limited by the magnetic force to avoid displacement of the guide rod 18 during use, thereby improving the plug-in effect between the plug block 16 and the slot 17.

[0027] When in use, first pull the magnetic pull plate 20 outward, the magnetic pull plate 20 drives the guide rod 18 to move outward, and the guide rod 18 drives the return spring 19 to deform and squeeze outward, then move the filter bag 14 downward, so that the sealing ring 13 is mounted on the top of the limiting ring 15, at this time, the sealing plate 5 is clamped in the inner cavity of the limiting groove 23, and the outer side of the sealing plate 5 is tightly fitted with the inner wall of the limiting groove 23, release the magnetic pull plate 20, the return spring 19 recovers its deformation due to the influence of the loss of force and drives the guide rod 18 to move inward, so that the inner side of the plug block 16 is inserted into the slot 17, the sealing plate 5 and the sealing ring 13 are limited once, and then the screw 7 is turned, the screw The rod 7 drives the screw sleeve 8 to move downward through the action of the thread, and the screw sleeve 8 drives the insertion rod 9 to move downward, so that the bottom of the insertion rod 9 passes through the inner cavity of the insertion hole 22 and extends to the bottom of the limiting ring 15, and the sealing plate 5 and the sealing ring 13 are limited for the second time, thereby improving the fixing effect of the sealing plate 5 and the sealing ring 13, thereby improving the stability of the filter bag 14 during use, avoiding material leakage, and at the same time avoiding the sealing ring 13 from being unable to effectively restore its elasticity due to excessive pressure, resulting in an unsatisfactory sealing effect (the above is the working process of the entire device, and the content not described in detail in this manual belongs to the existing technology known to professional and technical personnel in this field).

[0028] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 on the present invention.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A bag filter with a compression sealing structure, comprising a cylinder (1) and a filter bag (14), characterized in that: The outer side of the cylinder (1) is fixedly connected to a support seat (6), and the bottom of the support seat (6) is in contact with the ground. The left and right sides of the cylinder (1) are fixedly connected to fixing boxes (4). The top of the inner wall of the cylinder (1) is fixedly connected to a limiting ring (15). The left and right sides of the top of the cylinder (1) are provided with limiting grooves (23). The top of the cylinder (1) is fixedly connected to a cylinder cover (2). The left and right sides of the top of the cylinder cover (2) are fixedly connected to an adjustment box (3). The top of the filter bag (14) is fixedly connected to a sealing ring (13). The left and right sides of the top of the sealing ring (13) are fixedly connected to sealing plates (5). The sealing plates (5) are clamped in the inner cavity of the limiting groove (23). The sealing ring (13) is mounted on the top of the limiting ring (15).

2. The bag filter with a compression sealing structure according to claim 1, characterized in that: The inner cavity of the regulating box (3) is movably connected to a screw rod (7) via a bearing, the surface of the screw rod (7) is threadedly connected to a screw sleeve (8), the outer side of the screw sleeve (8) is fixedly connected to an insertion rod (9), and the left and right sides of the top of the cylinder cover (2), the top of the inner surface of the sealing plate (5) and the left and right sides of the inner surface of the limiting ring (15) are all provided with insertion holes (22), and the bottom of the insertion rod (9) passes through the inner cavity of the insertion hole (22) and extends to the bottom of the limiting ring (15).

3. The bag filter with a compression sealing structure according to claim 2, characterized in that: A slide groove (11) is provided on the inner side of the inner wall of the regulating box (3), a slider (12) is fixedly connected to the inner side of the screw sleeve (8), and the inner side of the slider (12) is slidably connected to the inner cavity of the slide groove (11).

4. The bag filter with a compression sealing structure according to claim 2, characterized in that: A through slot (10) is provided on the outer side of the regulating box (3), and the outer side of the insertion rod (9) passes through the inner cavity of the through slot (10) and extends to the outer side of the regulating box (3).

5. The bag filter with a compression sealing structure according to claim 1, characterized in that: A guide rod (18) is provided through the inner cavity of the fixing box (4), a return spring (19) is sleeved on the surface of the guide rod (18), an insert block (16) is fixedly connected to the inner side of the guide rod (18), and slots (17) are provided on the outer side of the inner surface of the sealing plate (5) and the tops of the left and right sides of the cylinder (1), and the outer side of the insert block (16) is inserted into the inner cavity of the slot (17).

6. The bag filter with a compression sealing structure according to claim 5, characterized in that: A magnetic pull plate (20) is fixedly connected to the outer side of the guide rod (18), and magnetic blocks (21) are embedded on the top and bottom of the outer side of the fixed box (4), and the magnetic pull plate (20) and the magnetic blocks (21) are magnetically connected.

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