Filter bag special for grain processing

Abstract

The utility model discloses a special filter bag for grain processing, which relates to the technical field of dust removal filter bags and comprises a filter bag body, the top end of the filter bag body is fixedly connected with a spring ring, the outer wall of the spring ring is provided with a clamping groove, the inner wall of the spring ring is provided with a threaded groove, and the threaded groove is fixedly connected with the clamping groove. A threaded groove is formed in the top of the filter bag body, an outer threaded ring is movably meshed with the inner wall of the threaded groove in a threaded mode, a vertical plate is arranged in the middle of the outer threaded ring, a bottom ring is arranged at the bottom of the vertical plate, a first binding belt and a second binding belt are arranged at the top of the bottom ring, an inner cavity is formed in the inner side of the top of the filter bag body, and a drawing belt is movably arranged in the inner cavity in a sleeved mode. By arranging a series of structures, the probability that the bottom of the filter bag is shrunken is reduced, so that the filter bag can be kept in a relatively stable state after being mounted, the friction between the outer surface of the filter bag and a tubesheet hole is avoided, the probability that dust drifts away for the second time when the filter bag is dismounted is reduced, and the filter bag can be conveniently dismounted from the tubesheet.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal filter bags, in particular to a special filter bag for grain processing. Background Art

[0002] The special filter bag for dust removal in the grain industry is a device used to collect and filter dust generated during grain processing, storage and transportation. It is mainly composed of filter cloth, frame and connecting parts. It has the characteristics of high efficiency, low energy consumption and environmental protection. It is an indispensable equipment in the grain industry.

[0003] However, when the existing special filter bags for grain processing are installed and fixed in the flower plate holes of the dust collector, the filter bags and the frame are usually installed separately, and no effective connecting parts are set between the filter bags and the frame for fastening, so that after the filter bags are impacted by super strong airflow, the frame is easy to slide along the filter bags, and the bottom of the filter bags is easy to deflate and cannot maintain a relatively stable state; in addition, when the filter bags are removed from the flower plate, the filter bags are usually pulled out of the flower plate holes. Since there is a lot of dust adsorbed on the outer surface of the filter bags, when the filter bags are pulled out, the outer surface of the filter bags will rub against the inner wall of the flower plate holes, which is easy to cause secondary dispersion of dust, making it inconvenient to remove the filter bags from the flower plate. Utility Model Content

[0004] The purpose of the utility model is to provide a special filter bag for grain processing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special filter bag for grain processing, comprising a filter bag body, a spring ring is fixedly connected to the top of the filter bag body, a clamping groove is provided on the outer wall of the spring ring, a thread groove is provided on the inner wall of the spring ring, an external thread ring is engaged with the movable thread of the inner wall of the thread groove, a vertical plate is provided in the middle of the external thread ring, a bottom ring is provided at the bottom of the vertical plate, a first strap and a second strap are respectively provided on the top of the bottom ring, an inner cavity is provided on the inner side of the top of the filter bag body, a drawstring is provided on the movable sleeve inside the inner cavity, and a notch is provided at the junction of the drawstring and the inner cavity.

[0006] Preferably, first connecting rods are fixedly connected to both sides of the inner wall of the external threaded ring, the first connecting rods are fixedly connected to the top of the vertical plate, and the vertical plate is fixedly connected to the external threaded ring through the first connecting rods.

[0007] Preferably, one end of each of the first binding strap and the second binding strap is fixedly connected to the bottom of the inner side of the filter bag body.

[0008] Preferably, the bottom of the inner side of the filter bag body is fixedly connected with a buckle, and the other ends of the first strap and the second strap are snap-connected with the buckle.

[0009] Preferably, the first strap and the second strap are movably connected to the bottom ring via buckles.

[0010] Preferably, both sides of the inner wall of the bottom ring are fixedly connected with second connecting rods, the second connecting rods are fixedly connected to the bottom of the vertical plate, and the bottom ring is fixedly connected to the vertical plate through the second connecting rods.

[0011] Preferably, the bottom ring is movably embedded and connected to the filter bag body via a vertical plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. This special filter bag for grain processing uses an external thread ring, a thread groove, a vertical plate and a bottom ring to connect the filter bag body and the frame supporting the filter bag through thread engagement. When the filter bag is impacted by a super strong airflow, the frame is not easy to slide along the inside of the filter bag, reducing the probability of the bottom of the filter bag becoming deflated, which is conducive to keeping the filter bag in a relatively stable state after installation.

[0014] 2. This special filter bag for grain processing, through the connecting belt, opening and withdrawal belt, can be removed from the flower plate. The skeleton that is first pulled out can drive the bottom of the inner side of the filter bag to move upward, so that the original outer surface of the filter bag is folded inward to avoid friction between the outer surface of the filter bag and the flower plate hole. At the same time, before the filter bag is completely pulled out of the flower plate hole, the folded filter bag mouth can be locked by the withdrawal belt to reduce the probability of secondary dust dispersion when the filter bag is disassembled, thereby facilitating the removal of the filter bag from the flower plate. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic diagram of the structure of the external thread ring and the bottom ring of the utility model;

[0017] Figure 3 This is a schematic diagram of the drawer belt and vertical plate structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the notch and inner cavity structure of the utility model.

[0019] In the figure: 1. spring ring; 2. external thread ring; 3. slot; 4. filter bag body; 5. first connecting rod; 6. vertical plate; 7. first binding strap; 8. bottom ring; 9. second connecting rod; 10. second binding strap; 11. buckle; 12. drawstring; 13. threaded groove; 14. notch; 15. inner cavity. 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] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 an indirect connection 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.

[0023] like Figures 1 to 4 As shown, the special filter bag for grain processing in this embodiment includes a filter bag body 4, a spring ring 1 is fixedly connected to the top of the filter bag body 4, a card slot 3 is provided on the outer wall of the spring ring 1, a thread groove 13 is provided on the inner wall of the spring ring 1, an external thread ring 2 is engaged with the inner wall of the thread groove 13, a vertical plate 6 is provided in the middle of the external thread ring 2, a bottom ring 8 is provided at the bottom of the vertical plate 6, a first binding band 7 and a second binding band 10 are respectively provided on the top of the bottom ring 8, an inner cavity 15 is provided on the inner side of the top of the filter bag body 4, a draw belt 12 is provided in the internal movable sleeve of the inner cavity 15, and a notch 14 is provided at the junction of the draw belt 12 and the inner cavity 15.

[0024] Specifically, the filter bag is "cylindrical" after being stretched open by the skeleton, and the top end of the filter bag is not closed, while the bottom end is closed, so that the airflow carrying dust can only pass through the fine fibers on the outer wall of the filter bag to enter the inside of the filter bag, thereby realizing the adsorption and filtration of the dust. The spring ring 1 can be deformed after being pinched, and the top end of the filter bag can be fixed in the hole of the flower plate by cooperating with the card slot 3, and the threaded groove 13 enables the external threaded ring 2 to be fixed with the fixed spring ring 1, so that the top of the skeleton structure composed of the vertical plate 6, the external threaded ring 2 and the bottom ring 8 can be effectively connected with the top of the inner side of the filter bag body 4, thereby reducing the probability of the skeleton structure sliding up in the filter bag, so that the filter bag can maintain a relatively stable state after being fixed, which is beneficial to the dust filtering of the filter bag. The outer diameter of the external threaded ring 2 is adapted to the inner diameter of the spring ring 1, and the external threaded ring The diameter of the patterned ring 2 is the same as that of the bottom ring 8, and the outer diameter of the bottom ring 8 is matched with the inner diameter of the filter bag body 4, so that after the external threaded ring 2 is fixed on the spring ring 1, the bottom ring 8 can open the bottom of the filter bag body 4, so that the filter bag body 4 can maintain a relatively stable "cylindrical shape" after the fixation is completed. The function of the opening is to allow the connecting belt to pass through the vertical plate 6 smoothly, so that the vertical plate 6 can be connected to the bottom of the inner side of the filter bag body 4, so that when the vertical plate 6 is pulled out, it can drive the bottom of the inner side of the filter bag body 4 to stretch upward, so that the outer surface of the filter bag body 4 is folded inward when the filter bag body 4 is removed, reducing the secondary dispersion of dust generated during disassembly. The function of the inner cavity 15 is to enable the drawing belt 12 to drive the inner diameter of the top of the filter bag body 4 to become smaller when tightened, thereby realizing the locking of the bag mouth of the folded filter bag body 4.

[0025] Furthermore, first connecting rods 5 are fixedly connected to both sides of the inner wall of the external threaded ring 2, and the first connecting rods 5 are fixedly connected to the top of the vertical plate 6. The vertical plate 6 is fixedly connected to the external threaded ring 2 through the first connecting rods 5. The first connecting rods 5 and the vertical plate 6 are an integrated structure, both of which are made of metal, are not easy to rust, and have high hardness, thereby increasing the stability of the filter bag after fixation.

[0026] Furthermore, one end of the first strap 7 and the second strap 10 are fixedly connected to the bottom of the inner side of the filter bag body 4. The strap can realize the connection between the filter bag and the bottom ring 8, so that the skeleton composed of the vertical plate 6, the bottom ring 8 and the external threaded ring 2 has a tight connection with the filter bag, thereby increasing the stability of the filter bag after installation.

[0027] Furthermore, a buckle 11 is fixedly connected to the bottom of the inner side of the filter bag body 4, and the other ends of the first strap 7 and the second strap 10 are engaged with the buckle 11. The buckle 11 can realize the untying of the first strap 7 and the second strap 10 from the bottom ring 8, so that the filter bag body 4 can be separated from the bottom ring 8, thereby facilitating the subsequent cleaning of the filter bag body 4.

[0028] Furthermore, the first strap 7 and the second strap 10 are movably connected to the bottom ring 8 via the buckle 11, so that when the vertical plate 6 is pulled upward, the bottom of the inner side of the filter bag body 4 can be lifted by the first strap 7 and the second strap 10, thereby achieving the inward folding of the outer surface of the filter bag to avoid friction between the outer surface of the filter bag and the hole in the flower plate.

[0029] Furthermore, second connecting rods 9 are fixedly connected to both sides of the inner wall of the bottom ring 8, and the second connecting rods 9 are fixedly connected to the bottom of the vertical plate 6. The bottom ring 8 is fixedly connected to the vertical plate 6 through the second connecting rods 9. The second connecting rods 9 enable the bottom ring 8 to be fixed to the vertical plate 6, so that the vertical plate 6, the external threaded ring 2 and the bottom ring 8 can form a skeleton structure to expand the filter bag body 4 to a "cylindrical shape".

[0030] Furthermore, the bottom ring 8 is movably embedded in the filter bag body 4 through the vertical plate 6. When the vertical plate 6 moves downward, the bottom ring 8 can slide against the inner wall of the filter bag body 4, so that the bottom of the filter bag body 4 can remain in an expanded state, thereby facilitating keeping the filter bag in a relatively stable state after installation and fixation.

[0031] The method of using the present embodiment is as follows: when using the special filter bag for grain processing, it is necessary to first engage the card slot 3 on the spring ring 1 at the top of the filter bag body 4 with the corresponding hole on the flower plate, so that the top of the filter bag body 4 is engaged and fixed with the flower plate, and then the connecting belt can be passed through the opening of the vertical plate 6, and then one end of the first binding band 7 and the second binding band 10 is wound around the top of the bottom ring 8, and then the ends of the first binding band 7 and the second binding band 10 are engaged and connected with the buckle 11 on the filter bag body 4, so that the bottom of the inner side of the filter bag body 4 is bound to the bottom ring 8 and the vertical plate 6 through the first binding band 7 and the second binding band 10, and at the same time, the bottom ring 8 is attached to the bottom of the inner side of the filter bag body 4, and then the vertical plate 6, the external threaded ring 2 and the bottom ring 8 can be pushed downward, so that the bottom ring 8 drives the filter bag body 4 The bottom moves into the flower plate hole until the external threaded ring 2 moves to the thread groove 13 on the inner wall of the spring ring 1, the vertical plate 6 can be twisted half a turn so that the external threaded ring 2 is engaged and fixed with the thread groove 13, and at the same time, the bottom ring 8 will rotate in the first strap 7 and the second strap 10, so that the bottom ring 8 and the vertical plate 6 can rotate along the bottom of the filter bag body 4 at the same time, so that the bottom of the filter bag body 4 can remain in a stretched state. When the filter bag body 4 needs to be removed, just reverse the above steps, and before the spring ring 1 is removed from the flower plate hole, pull the drawstring 12 outward from the notch 14 to reduce the inner diameter of the drawstring 12 in the cavity, so that the bag opening of the filter bag body 4 is reduced. At this time, the bag opening of the filter bag body 4 is locked, and finally the spring ring 1 is removed from the flower plate hole.

[0032] 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 filter bag for grain processing, comprising a filter bag body (4), characterized in that: The top of the filter bag body (4) is fixedly connected with a spring ring (1), the outer wall of the spring ring (1) is provided with a slot (3), the inner wall of the spring ring (1) is provided with a thread groove (13), the inner wall of the thread groove (13) is movably threaded with an external thread ring (2), a vertical plate (6) is provided in the middle of the external thread ring (2), a bottom ring (8) is provided at the bottom of the vertical plate (6), a first binding band (7) and a second binding band (10) are respectively provided at the top of the bottom ring (8), an inner cavity (15) is provided on the inner side of the top of the filter bag body (4), a drawstring (12) is movably sleeved inside the inner cavity (15), and a notch (14) is provided at the junction of the drawstring (12) and the inner cavity (15).

2. A filter bag for grain processing according to claim 1, characterized in that: First connecting rods (5) are fixedly connected to both sides of the inner wall of the external threaded ring (2), the first connecting rods (5) are fixedly connected to the top of the vertical plate (6), and the vertical plate (6) is fixedly connected to the external threaded ring (2) through the first connecting rods (5).

3. A filter bag for grain processing according to claim 1, characterized in that: One end of each of the first binding strap (7) and the second binding strap (10) is fixedly connected to the bottom of the inner side of the filter bag body (4).

4. A filter bag for grain processing according to claim 1, characterized in that: The bottom of the inner side of the filter bag body (4) is fixedly connected with a buckle (11), and the other ends of the first binding strap (7) and the second binding strap (10) are snap-connected with the buckle (11).

5. The filter bag for grain processing according to claim 1, characterized in that: The first binding strap (7) and the second binding strap (10) are movably connected to the bottom ring (8) via a buckle (11).

6. The filter bag for grain processing according to claim 1, characterized in that: Second connecting rods (9) are fixedly connected to both sides of the inner wall of the bottom ring (8), the second connecting rods (9) are fixedly connected to the bottom of the vertical plate (6), and the bottom ring (8) is fixedly connected to the vertical plate (6) via the second connecting rods (9).

7. The filter bag for grain processing according to claim 1, characterized in that: The bottom ring (8) is movably embedded and connected to the filter bag body (4) via a vertical plate (6).

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