Grain cleaning equipment with dust removal effect

Abstract

The application discloses a grain cleaning equipment with dust removal effect, and relates to the technical field of grain cleaning equipment, which comprises a winnowing machine, a dust removal box, a blowing pipe, filter cloth bags, a fixing plate three and a fixing framework, the dust removal box is arranged at the top end of the winnowing machine, the blowing pipe is arranged at one side of the dust removal box, the fixing plate three is arranged in the interior of the dust removal box, and the filter cloth bags and the fixing framework are arranged in a rectangular array on the surface of the fixing plate three; the dust can be prevented from floating to the outside through the closed swing plate one and the swing plate two, the dust outside the filter cloth bags can be blown through the opened swing plate one and the swing plate two, the dust outside the filter cloth bags can be cleaned through the contact between the filter cloth bags and the cleaning brush of the movable plate one, the filter cloth bags can be blown by the airflow, the cleaning brush of the movable plate one is lifted to clean the filter cloth bags, so that the filter cloth bags are more completely cleaned, and the dust removal effect on the filter cloth bags is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grain cleaning equipment, in particular to a grain cleaning equipment with dust removal effect. BACKGROUND

[0002] The grain air separator is a kind of modern agricultural machinery, mainly used for removing impurities such as dust, chaff, shriveled grains, and small stones from grain during the cleaning process. The grain air separator separates grain and impurities under the action of air flow generated by a fan. The grain, which has a larger specific gravity, falls into a specific collection area in the machine. The impurities with smaller specific gravity are blown out by the air, thereby achieving the purpose of cleaning. The grain air separator is an indispensable equipment in modern grain processing, which not only improves the processing efficiency of grain, but also guarantees the quality and safety of grain.

[0003] In the prior art, a large amount of dust is easily accumulated outside the filter bag in the air separator. The accumulated dust is not only easily adhered to the outside of the filter bag, but also easily enters the inside of the filter bag from the gap of the filter bag, which easily causes the dust inside the filter bag to float out from the top end. Even when the blowing pipe finishes blowing air to the filter bag, it intensifies the overflow of dust. In addition, the filter bag needs to be cleaned after the equipment has been working for a period of time. The dust removal effect of the filter bag is poor by merely using wind to shake the filter bag. SUMMARY

[0004] The present application aims to provide a grain cleaning equipment with dust removal effect to solve the problems in the background art.

[0005] The object of the present application can be achieved by the following technical solutions.

[0006] A grain cleaning equipment with dust removal effect, comprising an air separator, a dust removal box, a blowing pipe, a filter bag, a third fixed plate, and a fixed framework, wherein the dust removal box is arranged at the top end of the air separator, and the blowing pipe is arranged on one side of the dust removal box; the third fixed plate is arranged inside the dust removal box, and the filter bag and the fixed framework are arranged in a rectangular array on the surface of the third fixed plate, and the blowing pipe is arranged above each fixed framework; the surface of the third fixed plate is provided with a connecting sleeve, the filter bag is engaged with the connecting sleeve, and the fixed framework is located at the bottom end of the connecting sleeve; a check structure is arranged inside the connecting sleeve, the check structure comprises a connecting pin, the connecting pin is horizontally arranged inside the connecting sleeve, the cylindrical surface of the connecting pin is provided with a swing plate one and a swing plate two, the swing plate one and the swing plate two are both rotationally connected with the connecting pin, the swing plate one and the swing plate two are spliced into a whole circle, a torsion spring is arranged on the cylindrical surface of the connecting pin at the positions of the swing plate one and the swing plate two, and the edges of the swing plate one and the swing plate two are both provided with a sealing strip, which is used to prevent the dust inside the filter bag from flowing back.

[0007] As a preferred technical scheme of the present application, the inner wall of the connecting sleeve is provided with a limiting ring, the limiting ring is located above the connecting pin, and the surface of the swing plate one and the surface of the swing plate two are matched with the limiting ring.

[0008] As a preferred technical scheme of the present application, the inner diameter of the connecting sleeve is matched with the outer diameter of the swing plate one and the swing plate two, the rotation angle of the swing plate one and the swing plate two is less than 45°, and the swing plate one and the swing plate two are close to or away from each other.

[0009] As a preferred technical scheme of the present application, the outer part of the fixed framework is provided with an ash removal structure, the ash removal structure comprises a pair of fixed plates one and movable plates one, the fixed plates one are welded to the outer part of the fixed framework, and the filter cloth bag is sewn to the inner part of the fixed plate one, the edge of each fixed plate one is provided with a connecting hole one, the edge of each movable plate one is provided with a connecting hole two, a connecting rod one is screwed between each movable plate one and at the connecting hole two, each movable plate one is lifted synchronously through the connecting rod one, and the inner wall of the movable plate one is provided with a row of cleaning brushes which are in contact with the outer part of the filter cloth bag.

[0010] As a preferred technical scheme of the present application, the connecting rod one is slidably connected with the connecting hole one of each fixed plate one, and the cleaning brushes are lifted synchronously with the movable plate one, the end of the cleaning brush is in contact with the fixed framework.

[0011] As a preferred technical scheme of the present application, the outer part of the connecting sleeve is provided with a rotating structure, the rotating structure comprises a fixed plate two and a movable plate two, the fixed plate two is welded to the outer part of the connecting sleeve, and the movable plate two is slidably connected with the outer part of the connecting sleeve, the end of the connecting rod one and between the fixed plate two and the movable plate two is provided with a telescopic spring, the ends of the two connecting rods one are screwed with the movable plate two, the connecting rod one is slidably connected with the fixed plate two, the ends of the two connecting rods one are provided with connecting blocks, the inner part of the connecting block is provided with a connecting rod two, the side wall of the connecting sleeve and at the connecting rod two is provided with an intermediate block, the inner part of the intermediate block is rotatably connected with a rotating column, the inner part of the rotating column is provided with a sliding groove, the inner part of the sliding groove is slidably connected with the connecting rod two, the other ends of the two connecting rods two are respectively below the swing plate one and the swing plate two.

[0012] As a preferred technical scheme of the present application, the lower surface edge of the swing plate one and the lower surface edge of the swing plate two are both provided with a clamping groove, the ends of the two connecting rods two are integrally provided with clamping blocks, and the clamping blocks are matched with the inner part of the clamping groove.

[0013] As a preferred technical scheme of the present application, when the swing plate one and the swing plate two are unfolded, the telescopic spring is contracted, and the clamping blocks at the ends of the connecting rod two are clamped with the clamping grooves.

[0014] As a preferred technical scheme of the present application, the telescopic spring is connected with the end of the second connecting rod, and the ends of the two second connecting rods are in contact with the ends of the swing plate I and the swing plate II.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] The swing plate I and the swing plate II are provided with a check structure, and the closed swing plate I and swing plate II can prevent dust from floating outside, and the opened swing plate I and swing plate II can blow the dust outside the filter cloth bag, so that the dust is removed from the outside of the filter cloth bag.

[0017] The dust removal structure is provided, and the filter cloth bag is shaken by the blowing pipe, so that the filter cloth bag is in contact with the cleaning brush of the movable plate I, and at this time, the dust outside the filter cloth bag can be cleaned, especially the dust accumulated outside the filter cloth bag.

[0018] The driving structure is provided, and the two swing plates drive the movable plate II to lift and swing the second connecting rod, so that the movable plate I moves up and down, and the movable plate I can clean the filter cloth bag at different positions, so that the cleaning is more clean.

[0019] The check structure and the driving structure are combined, the two swing plates are opened, the gas can enter the inside of the filter cloth bag, the airflow can blow the filter cloth bag, and the cleaning brush of the movable plate I lifts to clean the filter cloth bag, so that the filter cloth bag is cleaned more thoroughly, and the dust removal effect of the filter cloth bag is better. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to facilitate the understanding of those skilled in the art, the present application will be further described below with reference to the accompanying drawings.

[0021] Figure 1 The main structure diagram of the grain cleaning equipment with dust removal effect of the present application;

[0022] Figure 2 The filter cloth bag and the connecting sleeve schematic diagram of the grain cleaning equipment with dust removal effect of the present application;

[0023] Figure 3 The filter cloth bag schematic diagram of the grain cleaning equipment with dust removal effect of the present application;

[0024] Figure 4 The check structure schematic diagram of the grain cleaning equipment with dust removal effect of the present application;

[0025] Figure 5 The torsion spring schematic diagram of the grain cleaning equipment with dust removal effect of the present application;

[0026] Figure 6 Figure is the dust removal structure diagram of the grain cleaning equipment with dust removal effect of the application;

[0027] Figure 7 Figure is the separation diagram of the fixed plate one and the movable plate one of the grain cleaning equipment with dust removal effect of the application;

[0028] Figure 8 Figure is the cleaning brush diagram of the grain cleaning equipment with dust removal effect of the application;

[0029] Figure 9 Figure is the push structure diagram of the grain cleaning equipment with dust removal effect of the application;

[0030] Figure 10 Figure is the closure diagram of the fixed plate two and the movable plate two of the grain cleaning equipment with dust removal effect of the application;

[0031] Figure 11 Figure is the separation diagram of the fixed plate two and the movable plate two of the grain cleaning equipment with dust removal effect of the application.

[0032] In the figure: 1, air cleaner; 2, dust removal box; 3, blowing pipe; 4, filter cloth bag; 5, connecting sleeve; 6, check structure; 61, connecting pin; 62, swing plate one; 63, swing plate two; 64, torsion spring; 65, sealing strip; 66, limiting ring; 7, dust removal structure; 71, fixed plate one; 72, movable plate one; 73, connecting rod one; 74, connecting hole one; 75, connecting hole two; 76, cleaning brush; 8, push structure; 81, fixed plate two; 82, movable plate two; 83, connecting block; 84, connecting rod two; 85, middle block; 86, extension spring; 87, clamping block; 88, clamping groove; 89, rotating column; 810, sliding groove; 9, fixed plate three; 10, fixed framework. DETAILED DESCRIPTION

[0033] The technical solutions of the application will be described clearly and completely below in combination with the embodiments. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0034] Embodiment one:

[0035] Please refer to Figures 1-4As shown, a grain cleaning device with dust removal effect includes an air separator 1, a dust collection box 2, an air blowing pipe 3, filter bags 4, a fixing plate 3 9, and a fixing frame 10. The dust collection box 2 is located at the top of the air separator 1, and the air blowing pipe 3 is located on one side of the dust collection box 2. The fixing plate 3 9 is located inside the dust collection box 2, and the filter bags 4 and fixing frames 10 are arranged in a rectangular array on the surface of the fixing plate 3 9. The air blowing pipe 3 is located above each fixing frame 10. The filter bags 4, connecting sleeves 5, and fixing frames 10 are installed inside the fixing plate 3 9. This arrangement results in the filter bag 4, connecting sleeve 5, and fixing frame 10 being arranged in a rectangular array inside the fixing plate 9. The surface of the fixing plate 9 is provided with the connecting sleeve 5, and the filter bag 4 engages with the connecting sleeve 5, allowing the filter bag 4 and fixing frame 10 to be installed on the surface of the fixing plate 9. The fixing frame 10 is located at the bottom end of the connecting sleeve 5, thus placing the fixing frame 10 at the lower end of the connecting sleeve 5 inside the filter bag 4. The connecting sleeve 5 is equipped with a check valve 6, which includes a connecting pin 61, which is laterally positioned within the connecting sleeve 9. Inside the sleeve 5, a connecting pin 61 is inserted. The cylindrical surface of the connecting pin 61 is provided with a first swing plate 62 and a second swing plate 63. Both swing plates 62 and 63 are rotatably connected to the connecting pin 61, and they are assembled into a complete circle, allowing them to close or open. When the airflow from the blower pipe 3 blows the swing plates 62 and 63, they can open or close. The cylindrical surface of the connecting pin 61 is located on the swing plate 62. Torsion springs 64 are provided at 62 and 63. When the airflow from the blower pipe 3 pushes the swing plates 62 and 63 to open, and when there is no airflow, the torsion springs 64 cause the swing plates 62 and 63 to close. The edges of the swing plates 62 and 63 are provided with sealing strips 65. The sealing strips 65 are used to prevent the dust inside the filter bag 4 from flowing backward. When the swing plates 62 and 63 are closed, the sealing strips 65 can be used to seal the gaps in the inner wall of the connecting sleeve 5 to prevent dust from overflowing from the inside of the connecting sleeve 5.

[0036] Please see Figure 4 and Figure 5 As shown, the inner wall of the connecting sleeve 5 is provided with a limit ring 66, and the limit ring 66 is located above the connecting pin 61. The surfaces of the first swing plate 62 and the second swing plate 63 are adapted to the limit ring 66. When the first swing plate 62 and the second swing plate 63 rotate, they are restricted by the limit ring 66 to prevent the first swing plate 62 and the second swing plate 63 from moving upward.

[0037] Please see Figure 5As shown, the inner diameter of the connecting sleeve 5 is matched with the outer diameter of the swing plate one 62 and the swing plate two 63, the swing plate one 62 and the swing plate two 63 can be turned downward, but the swing plate one 62 and the swing plate two 63 cannot be turned upward due to the influence of the connecting sleeve 5, the turning angle of the swing plate one 62 and the swing plate two 63 is less than 45°, avoiding the swing plate one 62 and the swing plate two 63 being too close to cause the connecting rod two 84 to be separated from the edges of the two swing plates, and the swing plate one 62 and the swing plate two 63 are close to or away from each other, and the swing plate one 62 and the swing plate two 63 are close to each other to avoid the swing plate one 62 and the swing plate two 63 being too close to each other.

[0038] It should be noted that the grain is poured into the inside of the winnower 1, and can be screened through the inside of the winnower 1, during which the screened dust in the grain is retained outside the filter bag 4, and can be blown to each filter bag 4 at a later time by the blowing pipe 3, so that the dust outside the filter bag 4 is blown out, the dust outside the filter bag 4 is removed, and the airflow is discharged from the winnower 1, since the filter bag 4 at the fixed framework 10 is blown by the blowing pipe 3, the swing plate one 62 and the swing plate two 63 can be pushed to rotate around the connecting pin 61 by the airflow, the swing plate one 62 and the swing plate two 63 can enter the airflow into the inside of the filter bag 4 after being rotated, so that the dust outside the filter bag 4 is cleaned, when the blowing pipe 3 stops blowing, there is no airflow blowing in the connecting sleeve 5 and the inside of the filter bag 4, at this time the swing plate one 62 and the swing plate two 63 are swung under the action of the torsion spring 64, so that the swing plate one 62 and the swing plate two 63 can be reset, the swing plate one 62 and the swing plate two 63 are limited by the limiting ring 66 when being rotated, avoiding the swing plate one 62 and the swing plate two 63 moving upward, at this time the sealing strip 65 of the swing plate one 62 and the swing plate two 63 blocks the inside of the connecting sleeve 5, avoiding the airflow overflowing the dust in the inside of the filter bag 4.

[0039] Please refer to Figure 3 and Figure 6As shown, the outer part of the fixed framework 10 is provided with an ash removal structure 7, which comprises a pair of fixed plates 71 and movable plates 72, the fixed plates 71 are welded to the outer part of the fixed framework 10, and the filter cloth bag 4 is sewn to the inner part of the fixed plate 71, which fixes the fixed plate 71 and the fixed framework 10, and the filter cloth bag 4 is sewn to the fixed plate 71 and the fixed framework 10 through the connecting line, which avoids the filter cloth bag 4 from falling off, the edge of each fixed plate 71 is provided with a connecting hole 74, the edge of each movable plate 72 is provided with a connecting hole 75, and the connecting rod 73 is screwed between each movable plate 72 and the connecting hole 75, and each movable plate 72 is lifted synchronously through the connecting rod 73, when the fixed plate 71 and the movable plate 72 are in contact with the filter cloth bag 4, the movable plate 72 remains stationary, and the filter cloth bag 4 is in contact with each movable plate 72, and the inner wall of the movable plate 72 is provided with a row of cleaning brushes 76, which are in contact with the outer part of the filter cloth bag 4, when the blowing pipe 3 blows the filter cloth bag 4, the filter cloth bag 4 can be shaken, so that the filter cloth bag 4 is in contact with the movable plate 72, and the dust on the outer part of the filter cloth bag 4 can be removed.

[0040] Please refer to Figures 6-8 As shown, the connecting rod 73 is in sliding connection with the connecting hole 74 of each fixed plate 71, and the cleaning brush 76 is lifted synchronously with the movable plate 72, the end of the cleaning brush 76 is in contact with the fixed framework 10, the cleaning brush 76 can extend into the inner part of the filter cloth bag 4, the connecting hole 74 is in contact with the fixed framework 10, and the dust on the filter cloth bag 4 is cleaned more thoroughly.

[0041] It should be noted that when the blowing pipe 3 blows the inner part of the filter cloth bag 4, the filter cloth bag 4 will expand or shake, during which each movable plate 72 is lifted up and down, and the connecting rod 73 slides with the connecting hole 74 of the fixed plate 71, the filter cloth bag 4 can be in contact with the movable plate 72, and the shaking filter cloth bag 4 can be in contact with each movable plate 72 and the cleaning brush 76, so that the dust on the filter cloth bag 4 is cleaned.

[0042] Please refer to Figure 3 、 Figure 9 and Figure 10As shown, the outer part of the connecting sleeve 5 is provided with a toggle structure 8, which includes a fixed plate two 81 and a movable plate two 82, and the fixed plate two 81 is welded to the outer part of the connecting sleeve 5, and the movable plate two 82 is in sliding connection with the outer part of the connecting sleeve 5. The fixed plate two 81 is kept on the outer part of the connecting sleeve 5, and the movable plate two 82 can be lifted along the outer wall of the connecting sleeve 5. The end of the connecting rod one 73 between the fixed plate two 81 and the movable plate two 82 is provided with a telescopic spring 86. Under normal circumstances, the telescopic spring 86 can connect the fixed plate two 81 and the movable plate two 82. The telescopic spring 86 is in a contracted state, and the fixed plate two 81 and the movable plate two 82 are in a close state. The ends of the two connecting rod one 73 are screwed with the movable plate two 82, and the connecting rod one 73 is in sliding connection with the fixed plate two 81. The length of the connecting rod one 73 is predicted to be screwed. Under the action of the telescopic spring 86, the fixed plate two 81 and the movable plate two 82 are close, and the connecting rod one 73 is in sliding connection with the fixed plate two 81. The ends of the two connecting rod one 73 are provided with connecting blocks 83, and the connecting blocks 83 and the movable plate two 82 are lifted synchronously. The inside of the connecting block 83 is provided with a connecting rod two 84. The side wall of the connecting sleeve 5 at the position of the connecting rod two 84 is provided with an intermediate block 85. The inside of the intermediate block 85 is rotatably connected with a rotating column 89, so that the intermediate block 85 rotates with the connecting rod two 84. The inside of the rotating column 89 is provided with a sliding groove 810, and the connecting rod two 84 is in sliding connection with the inside of the sliding groove 810. The other ends of the two connecting rod two 84 are located below the swing plate one 62 and the swing plate two 63 respectively. When the connecting rod two 84 slides along the sliding groove 810 in the inside of the rotating column 89, the swing plate one 62 and the swing plate two 63 are in contact with the connecting rod two 84. The position of the swing plate one 62 and the swing plate two 63 can control the lifting or lowering of the connecting rod two 84.

[0043] Please refer to Figure 5 、 Figure 9 and Figure 10 As shown, the lower surface edges of the swing plate one 62 and the swing plate two 63 are provided with clamping grooves 88, and the ends of the two connecting rod two 84 are integrally provided with clamping blocks 87, which are matched with the inside of the clamping grooves 88. When the swing plate one 62 and the swing plate two 63 swing downward, the clamping blocks 87 slide along the lower surfaces of the swing plate one 62 and the swing plate two 63, until the clamping blocks 87 enter the inside of the clamping grooves 88, to avoid the swing plate one 62 and the swing plate two 63 continue to rotate.

[0044] Please refer to Figure 10As shown, when the swing plate one 62 and the swing plate two 63 are unfolded, the telescopic spring 86 is contracted, and the engaging block 87 at the end of the connecting rod two 84 is engaged with the engaging slot 88. Under normal circumstances, when there is no airflow, the swing plate one 62 and the swing plate two 63 will not rotate. At this time, the telescopic spring 86 is in a contracted state, the fixed plate two 81 and the connecting block 83 are close to each other, the connecting rod two 84 is connected with the connecting block 83, the connecting rod two 84 is connected with the sliding groove 810 inside the rotating column 89, at this time, the connecting rod two 84 is in contact with the lower surface of the swing plate one 62 and the swing plate two 63. Since the fixed plate two 81 and the movable plate two 82 are close to each other, the fixed plate one 71 and the movable plate one 72 are close to each other.

[0045] Please refer to Figure 11 As shown, while the telescopic spring 86 is extended, the end of the connecting rod two 84, and the two connecting rod two 84 are in contact with the end of the swing plate one 62 and the end of the swing plate two 63. The swing plate one 62 and the swing plate two 63 are blown by the airflow, and the edge of the swing plate one 62 and the swing plate two 63 will press down the end of the connecting rod two 84, so that the connecting rod two 84 can rotate around the rotating column 89, and the connecting rod two 84 slides along the sliding groove 810 inside. The raised connecting rod two 84 can lift the connecting block 83 and the movable plate two 82, and the connecting rod one 73 of the lifting movable plate two 82 drives each movable plate one 72 to lift, so that the cleaning brush 76 on the inner wall of the movable plate one 72 also lifts with the movable plate one 72. The cleaning brush 76 can clean the dust on the outer wall of the filter bag 4.

[0046] In use, when the impurities in the grain need to be screened, the grain is poured into the inside of the winnower 1, and the grain in the inside of the winnower 1 is screened by the winnowing device, wherein the dust in the grain can adhere to the outside of the filter cloth bag 4, and the dust on the outside of the filter cloth bag 4 needs to be cleaned, at this time, the inside of the dust removal box 2 and the filter cloth bag 4 can be blown by the blowing pipe 3, the check structure 6 in the connecting sleeve 5 can prevent the dust in the inside of the filter cloth bag 4 from overflowing from the connecting sleeve 5, specifically, the airflow blows the swing plate one 62 and the swing plate two 63 to swing, so that the dust on the outside of the filter cloth bag 4 can be blown out, when the airflow stops blowing, the swing plate one 62 and the swing plate two 63 rotate around the connecting pin 61 under the action of the torsion spring 64, so that the sealing strip 65 of the swing plate one 62 and the swing plate two 63 can seal the connecting sleeve 5, to avoid the dust in the inside of the connecting sleeve 5 from overflowing; when the swing plate one 62 and the swing plate two 63 do not swing, the connecting rod two 84 will not swing around the rotating column 89, the fixed plate two 81 and the movable plate two 82 do not move relative to each other, and the fixed plate one 71 and the movable plate one 72 also do not move relative to each other, when the airflow blows the swing plate one 62 and the swing plate two 63 to rotate relative to each other, the swing plate one 62 and the swing plate two 63 descending will press down to make the connecting rod two 84 swing, the connecting rod two 84 drives the rotating column 89 to rotate in the inside of the middle block 85, and the connecting rod two 84 slides along the sliding groove 810 in the inside of the rotating column 89, the connecting block 83 of the connecting rod two 84 rises and falls with the movable plate two 82, the movable plate two 82 and the fixed plate two 81 move away from each other, the extension spring 86 is lengthened, and the movable plate two 82 drives the connecting rod one 73 to rise and fall, each movable plate one 72 also rises and falls, and the cleaning brush 76 of each movable plate one 72 can clean the filter cloth bag 4, so that the dust on the outside of the filter cloth bag 4 is cleaned, due to the change of the blowing size, the swing degree of the swing plate one 62 and the swing plate two 63 changes, the connecting rod one 73 drives the movable plate one 72 to rise and fall, so that the outer wall of the filter cloth bag 4 is cleaned relatively clean, when the blowing pipe 3 blows the inside of the filter cloth bag 4, the filter cloth bag 4 will be inflated or shaken, during which each movable plate one 72 rises and falls, and the connecting rod one 73 slides with the connecting hole one 74 of the fixed plate one 71, the filter cloth bag 4 can contact the movable plate one 72 at the same time, the shaken filter cloth bag 4 can contact each movable plate one 72 and the cleaning brush 76, so that the dust of the filter cloth bag 4 is cleaned.

[0047] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A grain cleaning equipment with dust removal effect, comprising a winnowing machine (1), a dust removal box (2), a blowing pipe (3), a filter bag (4), a fixed plate three (9) and a fixed framework (10), the dust removal box (2) is arranged at the top end of the winnowing machine (1), and the blowing pipe (3) is arranged at one side of the dust removal box (2), the fixed plate three (9) is arranged inside the dust removal box (2), and the filter bag (4) and the fixed framework (10) are arranged in a rectangular array on the surface of the fixed plate three (9), and the blowing pipe (3) is arranged above each fixed framework (10); characterized in that, The surface of the fixed plate three (9) is provided with a connecting sleeve (5), the filter cloth bag (4) is clamped with the connecting sleeve (5), and the fixed framework (10) is located at the bottom end of the connecting sleeve (5). The inside of the connecting sleeve (5) is provided with a check structure (6), the check structure (6) includes a connecting pin (61), the connecting pin (61) is transversely arranged in the inside of the connecting sleeve (5), the cylindrical surface of the connecting pin (61) is provided with a swing plate one (62) and a swing plate two (63), the swing plate one (62) and the swing plate two (63) are both rotationally connected with the connecting pin (61), the swing plate one (62) and the swing plate two (63) are spliced into a whole circle, the cylindrical surface of the connecting pin (61) and located at the swing plate one (62) and the swing plate two (63) is provided with a torsion spring (64), the edges of the swing plate one (62) and the swing plate two (63) are both provided with a sealing strip (65), and the sealing strip (65) is used for preventing the dust in the filter cloth bag (4) from flowing reversely. The outside of the connecting sleeve (5) is provided with a rotating structure (8), the rotating structure (8) includes a fixed plate two (81) and a movable plate two (82), the fixed plate two (81) is welded to the outside of the connecting sleeve (5), the movable plate two (82) is slidingly connected with the outside of the connecting sleeve (5), the end of the connecting rod one (73) and located between the fixed plate two (81) and the movable plate two (82) is provided with a telescopic spring (86), the ends of the two connecting rod ones (73) are screwed with the movable plate two (82), the connecting rod one (73) is slidingly connected with the fixed plate two (81), the ends of the two connecting rod ones (73) are both provided with a connecting block (83), the inside of the connecting block (83) is provided with a connecting rod two (84), the side wall of the connecting sleeve (5) and located at the connecting rod two (84) is provided with an intermediate block (85), the inside of the intermediate block (85) is rotationally connected with a rotating column (89), the inside of the rotating column (89) is provided with a sliding groove (810), the inside of the sliding groove (810) is slidingly connected with the connecting rod two (84), the other ends of the two connecting rod twos (84) are located below the swing plate one (62) and the swing plate two (63) respectively.

2. The grain cleaning apparatus having a dust removing effect according to claim 1, wherein The inner wall of the connecting sleeve (5) is provided with a limiting ring (66), the limiting ring (66) is located above the connecting pin (61), and the surface of the swing plate one (62) and the surface of the swing plate two (63) are adapted to the limiting ring (66).

3. The grain cleaning apparatus having a dust removing effect according to claim 2, wherein The inner diameter of the connecting sleeve (5) is adapted to the outer diameters of the swing plate one (62) and the swing plate two (63), the rotation angles of the swing plate one (62) and the swing plate two (63) are both less than 45°, and the swing plate one (62) and the swing plate two (63) are close to or away from each other.

4. The grain cleaning apparatus having a dust removing effect according to claim 3, wherein The external part of the fixed framework (10) is provided with an ash removal structure (7), which comprises a pair of fixed plate one (71) and movable plate one (72), the fixed plate one (71) is welded to the external part of the fixed framework (10), and the filter cloth bag (4) is sewn to the internal part of the fixed plate one (71), the edge of each fixed plate one (71) is provided with a connecting hole one (74), the edge of each movable plate one (72) is provided with a connecting hole two (75), the connecting rod one (73) is screwed between each movable plate one (72) and at the connecting hole two (75), each movable plate one (72) is lifted synchronously through the connecting rod one (73), and the inner wall of the movable plate one (72) is provided with a row of cleaning brushes (76), the cleaning brushes (76) are in contact with the external part of the filter cloth bag (4).

5. The grain cleaning apparatus having a dust removing effect according to claim 4, wherein The connecting rod one (73) is slidably connected with the connecting hole one (74) of each fixed plate one (71), the cleaning brushes (76) are lifted synchronously with the movable plate one (72), and the end of the cleaning brushes (76) is in contact with the fixed framework (10).

6. The grain cleaning apparatus having a dust removing effect according to claim 5, wherein The lower surface edge of the swing plate one (62) and the lower surface edge of the swing plate two (63) are both provided with a clamping groove (88), the end of the two connecting rod two (84) is integrally provided with a clamping block (87), and the clamping block (87) is matched with the internal part of the clamping groove (88).

7. The grain cleaning apparatus having a dust removing effect according to claim 6, wherein When the swing plate one (62) and the swing plate two (63) are unfolded, the extension spring (86) is contracted, and the clamping block (87) at the end of the connecting rod two (84) is clamped with the clamping groove (88).

8. The grain cleaning apparatus having a dust removing effect according to claim 6, wherein When the extension spring (86) is elongated, the end of the connecting rod two (84) is in contact with the end of the swing plate one (62) and the end of the swing plate two (63).

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