Grain cleaning equipment with dust removal effect

Abstract

The invention discloses grain cleaning equipment with a dust removal effect, and relates to the technical field of grain cleaning equipment, the grain cleaning equipment comprises a winnowing machine, a dust removal box, an air blowing pipe, a filter cloth bag, a third fixing plate and a fixing framework, the dust removal box is arranged at the top end of the winnowing machine, the air blowing pipe is arranged on one side of the dust removal box, and the third fixing plate is arranged in the dust removal box; the filter cloth bags and the fixed framework are arranged on the surface of the fixed plate III in a rectangular array; dust can be prevented from flying to the outside by closing the first swing plate and the second swing plate, dust outside a filter cloth bag can be blown by opening the first swing plate and the second swing plate, the filter cloth bag is in contact with a cleaning brush of the first movable plate, and the dust outside the filter cloth bag can be cleaned; when the air flow blows the filter cloth bag, the cleaning brush of the movable plate I ascends and descends to clean the filter cloth bag, so that the filter cloth bag is cleaned more thoroughly, and the dust removal effect on the filter cloth bag is better.

Description

Technical Field

[0001] The invention relates to the technical field of grain cleaning equipment, in particular to grain cleaning equipment with dust removal effect. Background Art

[0002] Grain winnowing machine is a kind of modern agricultural machinery, which is mainly used to remove impurities in grain during grain cleaning, such as dust, chaff, empty grains, pebbles, etc. The grain winnowing machine uses the airflow generated by the fan to separate grain and impurities under the action of wind. Grain with a larger specific gravity will fall into a specific collection area in the machine; while impurities with a smaller specific gravity will be blown out by the wind, thus achieving the purpose of cleaning. Grain winnowing machine is an indispensable equipment in modern grain processing. It can not only improve the processing efficiency of grain, but also ensure the quality and safety of grain.

[0003] In the prior art, a lot of dust is easily accumulated on the outside of the filter bag in the air separator. The accumulated dust is not only easy to adhere to the outside of the filter bag, but also easy to enter the inside of the filter bag through the gaps in the filter bag, which easily causes the dust inside the filter bag to float out from the top, and even the dust overflow is aggravated when the air pipe is used to blow air to the filter bag. 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 relatively poor if the dust is only removed by shaking the filter bag with wind. Summary of the invention

[0004] The purpose of the present invention is to provide a grain cleaning device with dust removal effect to solve the problems raised in the above background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A grain cleaning device with dust removal effect, comprising a wind separator, a dust removal box, a blow pipe, a filter bag, a fixed plate three and a fixed frame, wherein the dust removal box is arranged at the top of the wind separator, and the blow pipe is arranged at one side of the dust removal box, the fixed plate three is arranged inside the dust removal box, and the filter bag and the fixed frame are arranged in a rectangular array on the surface of the fixed plate three, and the blow pipe is arranged above each fixed frame; a connecting sleeve is arranged on the surface of the fixed plate three, and the filter bag is engaged with the connecting sleeve, and the fixed frame is located at the bottom end of the connecting sleeve A non-return structure is arranged inside the connecting sleeve, and the non-return structure includes a connecting pin, and the connecting pin is transversely arranged inside the connecting sleeve, and a swing plate 1 and a swing plate 2 are arranged on the cylindrical surface of the connecting pin, and the swing plate 1 and the swing plate 2 are both rotatably connected with the connecting pin, and the swing plate 1 and the swing plate 2 are assembled into a full circle, and a torsion spring is arranged on the cylindrical surface of the connecting pin and at the swing plate 1 and the swing plate 2, and sealing strips are arranged on the edges of the swing plate 1 and the swing plate 2, and the sealing strips are used to prevent the dust inside the filter bag from flowing in reverse.

[0007] As a preferred technical solution of the present invention, a limiting ring is provided on the inner wall of the connecting sleeve, and 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 adapted to the limiting ring.

[0008] As a preferred technical solution of the present invention, the inner diameter of the connecting sleeve is adapted to the outer diameters of swing plate one and swing plate two, the rotation angles of swing plate one and swing plate two are both less than 45°, and swing plate one and swing plate two are close to or away from each other.

[0009] As a preferred technical solution of the present invention, an ash removal structure is arranged on the outside of the fixed frame, and the ash removal structure includes a fixed plate 1 and a movable plate 1 arranged in pairs, the fixed plate 1 is welded to the outside of the fixed frame, and the filter bag is sewn to the inside of the fixed plate 1, a connecting hole 1 is opened at the edge of each fixed plate 1, a connecting hole 2 is opened at the edge of each movable plate 1, a connecting rod 1 is screwed between each movable plate 1 and located at the connecting hole 2, each movable plate 1 is synchronously lifted and lowered by the connecting rod 1, and a circle of cleaning brushes is provided on the inner wall of the movable plate 1, and the cleaning brushes are in contact with the outside of the filter bag.

[0010] As a preferred technical solution of the present invention, the connecting rod 1 is slidably connected to the connecting hole 1 of each fixed plate 1, and the cleaning brush and the movable plate 1 are raised and lowered synchronously, and the end of the cleaning brush is in contact with the fixed frame.

[0011] As a preferred technical solution of the present invention, a toggle structure is provided on the outside of the connecting sleeve, and the toggle structure includes a fixed plate two and a movable plate two, and the fixed plate two is welded to the outside of the connecting sleeve, and the movable plate two is slidably connected to the outside of the connecting sleeve, a telescopic spring is provided at the end of the connecting rod one and located between the fixed plate two and the movable plate two, the ends of the two connecting rods one are screwed with the movable plate two, and the connecting rod one is slidably connected to the fixed plate two, and the ends of the two connecting rods one are both provided with connecting blocks, and a connecting rod two is provided inside the connecting block, and an intermediate block is provided on the side wall of the connecting sleeve and located at the connecting rod two, the inside of the intermediate block is rotatably connected to the rotating column, and a sliding groove is provided inside the rotating column, and the inside of the sliding groove is slidably connected to the connecting rod two, and the other ends of the two connecting rods two are respectively located below the swing plate one and below the swing plate two.

[0012] As a preferred technical solution of the present invention, the lower surface edges of the swing plate 1 and the swing plate 2 are both provided with snap-fitting grooves, and the ends of the two connecting rods 2 are both integrally provided with snap-fitting blocks, which are adapted to the inside of the snap-fitting grooves.

[0013] As a preferred technical solution of the present invention, when the swing plate 1 and the swing plate 2 are unfolded, the telescopic spring contracts, and the engaging blocks at the two ends of the connecting rod engage with the engaging grooves.

[0014] As a preferred technical solution of the present invention, the telescopic spring is extended while connecting the end of the second connecting rod, and the two connecting rods are in contact with the end of the first swing plate and the end of the second swing plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] A check structure is provided, and the swing plate 1 and the swing plate 2 swing. The closed swing plate 1 and the swing plate 2 can prevent dust from floating to the outside, and the open swing plate 1 and the swing plate 2 can blow the dust outside the filter bag, so that the dust is removed from the outside of the filter bag;

[0017] A dust removal structure is provided, and the filter bag is shaken by blowing through the air blowing pipe, so that the filter bag contacts the cleaning brush of the movable plate 1, and the dust outside the filter bag can be cleaned at this time, especially the dust accumulated outside the filter bag is cleaned more obviously;

[0018] A toggle structure is provided, and two swing plates are used to drive the movable plate 2 to lift and swing the connecting rod 2, so that the movable plate 1 moves up and down. The movable plate 1 can clean the filter bags at different positions, so that the cleaning is cleaner;

[0019] The check structure and the toggle structure are combined to open the two swing plates to allow gas to enter the interior of the filter bag. The airflow can blow the filter bag while the cleaning brush of the movable plate one rises and falls to clean the filter bag, thereby making the filter bag cleaning more thorough and achieving better dust removal effect on the filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a main structural diagram of a grain cleaning device with dust removal effect according to the present invention;

[0022] Figure 2 This is a schematic diagram of a filter bag and a connecting sleeve of a grain cleaning device with dust removal effect according to the present invention;

[0023] Figure 3 A schematic diagram of a filter bag of a grain cleaning device with dust removal effect according to the present invention;

[0024] Figure 4 It is a schematic diagram of a non-return structure of a grain cleaning device with dust removal effect according to the present invention;

[0025] Figure 5 A schematic diagram of a torsion spring of a grain cleaning device with dust removal effect according to the present invention;

[0026] Figure 6 It is a schematic diagram of the dust removal structure of a grain cleaning device with dust removal effect according to the present invention;

[0027] Figure 7 This is a schematic diagram of the separation of a fixed plate 1 and a movable plate 1 of a grain cleaning device with dust removal effect according to the present invention;

[0028] Figure 8 A schematic diagram of a cleaning brush of a grain cleaning device with dust removal effect according to the present invention;

[0029] Fig. 9 It is a schematic diagram of the toggle structure of a grain cleaning device with dust removal effect according to the present invention;

[0030] Fig.10 It is a closed schematic diagram of a fixed plate 2 and a movable plate 2 of a grain cleaning device with dust removal effect according to the present invention;

[0031] Fig.11 The present invention is a schematic diagram of the separation of a fixed plate 2 and a movable plate 2 of a grain cleaning device with dust removal effect.

[0032] In the figure: 1. air separator; 2. dust removal box; 3. air blowing pipe; 4. filter 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. limit 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. toggle structure; 81. fixed plate two; 82. movable plate two; 83. connecting block; 84. connecting rod two; 85. middle block; 86. telescopic spring; 87. snap block; 88. snap groove; 89. rotating column; 810. sliding groove; 9. fixed plate three; 10. fixed frame. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1:

[0035] See also Figure 1-Figure 4As shown, a grain cleaning device with dust removal effect includes a wind separator 1, a dust removal box 2, a blowing pipe 3, a filter bag 4, a fixed plate 3 9 and a fixed frame 10, the dust removal box 2 is arranged at the top of the wind separator 1, and the blowing pipe 3 is arranged on one side of the dust removal box 2, the fixed plate 3 9 is arranged inside the dust removal box 2, and the filter bag 4 and the fixed frame 10 are arranged in a rectangular array on the surface of the fixed plate 3 9, and the blowing pipe 3 is arranged above each fixed frame 10, the filter bag 4, the connecting sleeve 5 and the fixed frame 10 are installed inside the fixed plate 3 9, Thus, the filter bag 4, the connecting sleeve 5 and the fixed frame 10 are arranged in a rectangular array inside the fixed plate three 9; the surface of the fixed plate three 9 is provided with a connecting sleeve 5, and the filter bag 4 is engaged with the connecting sleeve 5, so that the filter bag 4 and the fixed frame 10 can be installed on the surface of the fixed plate three 9, and the fixed frame 10 is located at the bottom end of the connecting sleeve 5, so that the fixed frame 10 at the lower end of the connecting sleeve 5 is located inside the filter bag 4, and the inside of the connecting sleeve 5 is provided with a non-return structure 6, and the non-return structure 6 includes a connecting pin 61, and the connecting pin 61 is transversely arranged at the connecting sleeve 5. The connecting pin 61 is inserted into the connecting sleeve 5, and the cylindrical surface of the connecting pin 61 is provided with a swing plate 1 62 and a swing plate 2 63, and the swing plate 1 62 and the swing plate 2 63 are both rotatably connected with the connecting pin 61, and the swing plate 1 62 and the swing plate 2 63 are assembled into a full circle, so that the swing plate 1 62 and the swing plate 2 63 can be closed or opened, and when the airflow of the blowing pipe 3 blows the swing plate 1 62 and the swing plate 2 63, the swing plate 1 62 and the swing plate 2 63 can be opened or closed, and the cylindrical surface of the connecting pin 61 and the swing plate 1 Torsion springs 64 are provided at swing plate 1 62 and swing plate 2 63. The airflow of the blowing pipe 3 pushes the swing plate 1 62 and the swing plate 2 63 to open, and the torsion spring 64 makes the swing plate 1 62 and the swing plate 2 63 closed when there is no airflow. The edges of the swing plate 1 62 and the edges of the swing plate 2 63 are both provided with sealing strips 65. The sealing strips 65 are used to prevent the dust inside the filter bag 4 from flowing backwards. When the swing plate 1 62 and the swing plate 2 63 are closed, the sealing strips 65 can be used to seal the inner wall gap of the connecting sleeve 5 to prevent dust from overflowing from the inside of the connecting sleeve 5.

[0036] See also Figure 4 and Figure 5 As shown, a limiting ring 66 is provided on the inner wall of the connecting sleeve 5, and the limiting ring 66 is located above the connecting pin 61, and the surface of the swing plate 1 62 and the surface of the swing plate 2 63 are adapted to the limiting ring 66, and when the swing plate 1 62 and the swing plate 2 63 rotate, they are restricted by the limiting ring 66 to prevent the swing plate 1 62 and the swing plate 2 63 from moving upward.

[0037] See also Figure 5As shown, the inner diameter of the connecting sleeve 5 is matched with the outer diameter of the swing plate 1 62 and the swing plate 2 63, and the swing plate 1 62 and the swing plate 2 63 can rotate downward, but due to the influence of the connecting sleeve 5, the swing plate 1 62 and the swing plate 2 63 cannot rotate upward, and the rotation angle of the swing plate 1 62 and the swing plate 2 63 is less than 45°, so as to avoid the swing plate 1 62 and the swing plate 2 63 being too close to each other, causing the connecting rod 2 84 to detach from the edges of the two swing plates, and the swing plate 1 62 and the swing plate 2 63 approaching or moving away from each other, and avoiding the swing plate 1 62 and the swing plate 2 63 from approaching each other when the swing plate 1 62 and the swing plate 2 63 are close to each other.

[0038] It should be noted that the grain is poured into the interior of the air separator 1 and can be screened through the interior of the air separator 1. During this period, the dust screened from the grain is retained on the outside of the filter bag 4, and can be blown to each filter bag 4 through the blowing pipe 3 at a later stage, so that the dust on the outside of the filter bag 4 is blown out, and the external dust of the filter bag 4 is removed and discharged from the air separator 1 with the air flow. When the blowing pipe 3 blows the filter bag 4 at the fixed frame 10, the air flow can push the swing plate 1 62 and the swing plate 2 63 to rotate around the connecting pin 61. After the swing plate 1 62 and the swing plate 2 63 rotate, The airflow enters the filter bag 4 so that the dust on the outside of the filter bag 4 is cleaned. When the blowing pipe 3 stops blowing, there is no airflow blowing inside the connecting sleeve 5 and the filter bag 4. At this time, the swing plate 1 62 and the swing plate 2 63 are swung under the action of the torsion spring 64, so that the swing plate 1 62 and the swing plate 2 63 can be reset. When the swing plate 1 62 and the swing plate 2 63 rotate, they are restricted by the limit ring 66 to prevent the swing plate 1 62 and the swing plate 2 63 from moving upward. At this time, the sealing strip 65 of the swing plate 1 62 and the swing plate 2 63 blocks the inside of the connecting sleeve 5 to prevent the airflow from overflowing the dust inside the filter bag 4.

[0039] See also Figure 3 and Figure 6As shown, the outside of the fixed frame 10 is provided with an ash removal structure 7, which includes a fixed plate 71 and a movable plate 72 arranged in pairs, the fixed plate 71 is welded to the outside of the fixed frame 10, and the filter bag 4 is sewn to the inside of the fixed plate 71, the fixed plate 71 and the fixed frame 10 are fixed, and the filter bag 4 is sewn to the fixed plate 71 and the fixed frame 10 by a connecting line to prevent the filter 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 2 75, and the connection holes 75 between each movable plate 72 and at the connection holes 76 are provided. A connecting rod 73 is screwed on the hole 75, and each movable plate 72 is synchronously lifted and lowered through the connecting rod 73. When the fixed plate 71 and the movable plate 72 are in contact with the filter bag 4, the movable plate 72 remains stationary, and the movable plate 72 can be raised or lowered. At the same time, the filter bag 4 is in contact with each movable plate 72, and a circle of cleaning brushes 76 are provided on the inner wall of the movable plate 72. The cleaning brush 76 is in contact with the outside of the filter bag 4. When the blowing pipe 3 blows the filter bag 4, the filter bag 4 can shake, so that the filter bag 4 is in contact with the movable plate 72, and the dust on the outside of the filter bag 4 can be removed.

[0040] See also Figure 6-Figure 8 As shown, the connecting rod 73 is slidably connected to the connecting hole 74 of each fixed plate 71, and the cleaning brush 76 is synchronously lifted and lowered with the movable plate 72. The end of the cleaning brush 76 contacts the fixed frame 10, and the cleaning brush 76 can extend into the filter bag 4. The connecting hole 74 contacts the fixed frame 10, and the dust on the filter bag 4 is cleaned more thoroughly.

[0041] It should be noted that when the blowing pipe 3 blows the inside of the filter bag 4, the filter bag 4 will expand or shake. During this period, each movable plate 72 rises and falls, and the connecting rod 73 slides with the connecting hole 74 of the fixed plate 71. The filter bag 4 can contact with the movable plate 72, and the shaking filter bag 4 can contact with each movable plate 72 and the cleaning brush 76, so that the dust in the filter bag 4 is cleaned.

[0042] See also Figure 3 , Fig. 9 and Fig.10As shown, a toggle structure 8 is provided on the outside of the connecting sleeve 5, and the toggle structure 8 includes a fixed plate 2 81 and a movable plate 2 82, and the fixed plate 2 81 is welded to the outside of the connecting sleeve 5, and the movable plate 2 82 is slidably connected to the outside of the connecting sleeve 5, the fixed plate 2 81 is maintained on the outside of the connecting sleeve 5, and the movable plate 2 82 can be lifted and lowered along the outer wall of the connecting sleeve 5, and a telescopic spring 86 is provided at the end of the connecting rod 1 73 and between the fixed plate 2 81 and the movable plate 2 82. Under normal conditions, the telescopic spring 86 can connect the fixed plate 2 81 and the movable plate 2 82, the telescopic spring 86 is in a contracted state, and the fixed plate 2 81 and the movable plate 2 82 are in a close state, the ends of the two connecting rods 1 73 are screwed together with the movable plate 2 82, and the connecting rod 1 73 is slidably connected to the fixed plate 2 81, and the length prediction table of the connecting rod 1 73 is screwed together, and under the action of the telescopic spring 86, the fixed plate 2 81 and the movable plate 2 82 are close, and the connecting rod 1 73 and The fixed plate 81 is slidably connected, and the ends of the two connecting rods 73 are both provided with connecting blocks 83. The connecting blocks 83 and the movable plate 82 rise and fall synchronously. A connecting rod 84 is arranged inside the connecting block 83. An intermediate block 85 is arranged on the side wall of the connecting sleeve 5 and located at the connecting rod 84. The intermediate block 85 is internally rotatably connected to a rotating column 89. The rotating column 89 can be rotatably connected inside the intermediate block 85, so that the intermediate block 85 rotates with the connecting rod 84. A sliding groove 810 is provided inside the rotating column 89. The sliding groove 810 is internally slidably connected with the connecting rod 84. The other ends of the two connecting rods 84 are respectively located below the swing plate 62 and the swing plate 63. The connecting rod 84 slides along the sliding groove 810 inside the rotating column 89, so that the swing plate 62 and the swing plate 63 are both in contact with the connecting rod 84. The positions of the swing plate 62 and the swing plate 63 can control the lifting or lowering of the connecting rod 84.

[0043] See also Figure 5 , Fig. 9 and Fig.10 As shown, the lower surface edges of the swing plate 1 62 and the lower surface edges of the swing plate 2 63 are both provided with a snap-fitting groove 88, and the ends of the two connecting rods 2 84 are both integrally provided with a snap-fitting block 87, which is adapted to the inside of the snap-fitting groove 88. When the swing plate 1 62 and the swing plate 2 63 swing downward, the snap-fitting block 87 slides along the lower surface of the swing plate 1 62 and the swing plate 2 63 until the snap-fitting block 87 enters the inside of the snap-fitting groove 88, thereby preventing the swing plate 1 62 and the swing plate 2 63 from continuing to rotate.

[0044] See also Fig.10As shown, when the swing plate 1 62 and the swing plate 2 63 are unfolded, the telescopic spring 86 contracts, and the engaging block 87 at the end of the connecting rod 2 84 is engaged with the engaging groove 88. Under normal circumstances, when there is no airflow entering, the swing plate 1 62 and the swing plate 2 63 will not rotate. At this time, the telescopic spring 86 is in a contracted state, the fixed plate 2 81 and the connecting block 83 are close to each other, the connecting rod 2 84 is connected to the connecting block 83, and the connecting rod 2 84 is slidably connected along the sliding groove 810 inside the rotating column 89. At this time, the connecting rod 2 84 contacts the lower surface of the swing plate 1 62 and the swing plate 2 63. Since the fixed plate 2 81 and the movable plate 2 82 are close to each other, the fixed plate 1 71 and the movable plate 1 72 are close to each other.

[0045] See also Fig.11 As shown, while the telescopic spring 86 is extended, the ends of the connecting rod 2 84, the two connecting rods 2 84 are in contact with the ends of the swing plate 1 62 and the ends of the swing plate 2 63. The swing plate 1 62 and the swing plate 2 63 are blown by the airflow, and the edges of the swing plate 1 62 and the swing plate 2 63 will press down the ends of the connecting rod 2 84, so that the connecting rod 2 84 can rotate around the rotating column 89 and the connecting rod 2 84 can slide inside the sliding groove 810. The raised connecting rod 2 84 can lift the connecting block 83 and the movable plate 2 82, and the connecting rod 1 73 of the lifted movable plate 2 82 drives each movable plate 1 72 to rise and fall, so that the cleaning brush 76 on the inner wall of the movable plate 1 72 also rises and falls with the movable plate 1 72, and the cleaning brush 76 can clean the dust on the outer wall of the filter bag 4.

[0046] When the present invention is in use, when it is necessary to screen impurities in the grain, the grain is poured into the interior of the air separator 1, and the grain inside the air separator 1 is screened by the air separation equipment, wherein the dust in the grain will adhere to the outside of the filter bag 4, and the dust outside the filter bag 4 needs to be cleaned, at this time, the air blower 3 can be used to blow into the dust removal box 2 and the filter bag 4, and the non-return structure 6 in the connecting sleeve 5 can prevent the dust inside the filter bag 4 from overflowing from the connecting sleeve 5. Specifically, the air flow blows the swing plate 1 62 and the swing plate 2 63 to swing, so that the dust outside the filter bag 4 can be blown out, and the air flow stops Under the action of the torsion spring 64, the swing plate 1 62 and the swing plate 2 63 rotate around the connecting pin 61, so that the sealing strip 65 of the swing plate 1 62 and the swing plate 2 63 can seal the connecting sleeve 5 to prevent the dust inside the connecting sleeve 5 from overflowing; when the swing plate 1 62 and the swing plate 2 63 do not swing, the connecting rod 2 84 will not swing around the rotating column 89, the fixed plate 2 81 and the movable plate 2 82 will not move relative to each other, and the fixed plate 1 71 and the movable plate 1 72 will not move relative to each other. When the airflow blows the swing plate 1 62 and the swing plate 2 63 to rotate relative to each other, the swing plate 1 62 and the swing plate 2 63 will drop. The downward pressure makes the connecting rod 84 swing, and the connecting rod 84 drives the rotating column 89 to rotate inside the middle block 85, and the connecting rod 84 slides inside the sliding groove 810 of the rotating column 89, and the connecting block 83 of the connecting rod 84 rises and falls with the movable plate 82, and the movable plate 82 and the fixed plate 81 are relatively far away, the telescopic spring 86 is stretched, and the movable plate 82 drives the connecting rod 1 73 to rise and fall, and each movable plate 1 72 also rises and falls, and the cleaning brush 76 of each movable plate 1 72 can clean the filter bag 4, thereby cleaning the dust outside the filter bag 4. The swing degree of the swing plate 62 and the swing plate 2 63 changes, and the connecting rod 73 drives the movable plate 72 to rise and fall, so that the outer wall of the filter bag 4 is cleaned relatively cleanly. When the blowing pipe 3 blows the inside of the filter bag 4, the filter bag 4 will expand or shake. During this period, each movable plate 72 rises and falls, and the connecting rod 73 slides with the connecting hole 74 of the fixed plate 71. The filter bag 4 can contact with the movable plate 72, and the shaking filter bag 4 can contact with each movable plate 72 and the cleaning brush 76, so that the dust on the filter bag 4 is cleaned.

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

Claims

1. A grain cleaning device with dust removal effect, comprising a wind separator (1), a dust removal box (2), a blow pipe (3), a filter bag (4), a fixed plate three (9) and a fixed frame (10), wherein the dust removal box (2) is arranged at the top of the wind separator (1), and the blow 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 frame (10) are arranged in a rectangular array on the surface of the fixed plate three (9), and the blow pipe (3) is arranged above each fixed frame (10); characterized in that A connecting sleeve (5) is provided on the surface of the fixing plate (9), and the filter bag (4) is engaged with the connecting sleeve (5), and the fixing frame (10) is located at the bottom end of the connecting sleeve (5), and a non-return structure (6) is provided inside the connecting sleeve (5), and the non-return structure (6) includes a connecting pin (61), and the connecting pin (61) is transversely arranged inside the connecting sleeve (5), and a swing plate (62) and a swing plate (63) are provided on the cylindrical surface of the connecting pin (61), and The swing plate 1 (62) and the swing plate 2 (63) are both rotatably connected to the connecting pin (61), and the swing plate 1 (62) and the swing plate 2 (63) are assembled into a full circle. A torsion spring (64) is arranged on the cylindrical surface of the connecting pin (61) and at the swing plate 1 (62) and the swing plate 2 (63). The edges of the swing plate 1 (62) and the swing plate 2 (63) are both provided with sealing strips (65), and the sealing strips (65) are used to prevent dust inside the filter bag (4) from flowing in reverse.

2. A grain cleaning device with dust removal effect according to claim 1, characterized in that: The inner wall of the connecting sleeve (5) is provided with a limiting ring (66), and the limiting ring (66) is located above the connecting pin (61), and the surface of the swing plate 1 (62) and the surface of the swing plate 2 (63) are adapted to the limiting ring (66).

3. The grain cleaning device with dust removal effect according to claim 2 is characterized in that: The inner diameter of the connecting sleeve (5) is matched with the outer diameters of the swing plate 1 (62) and the swing plate 2 (63); the swing plate 1 (62) and the swing plate 2 (63) have a rotation angle less than 45°, and the swing plate 1 (62) and the swing plate 2 (63) are close to or away from each other.

4. The grain cleaning device with dust removal effect according to claim 3 is characterized in that: The fixed frame (10) is provided with an ash removal structure (7) on the outside. The ash removal structure (7) comprises a fixed plate (71) and a movable plate (72) arranged in pairs. The fixed plate (71) is welded to the outside of the fixed frame (10), and the filter bag (4) is sewn to the inside of the fixed plate (71). The edge of each fixed plate (71) is provided with a connection hole (74), and the edge of each movable plate (72) is provided with a connection hole (75). A connecting rod (73) is screwed between each movable plate (72) and located at the connection hole (75). Each movable plate (72) is synchronously raised and lowered by the connecting rod (73). A circle of cleaning brushes (76) is provided on the inner wall of the movable plate (72), and the cleaning brushes (76) are in contact with the outside of the filter bag (4).

5. The grain cleaning device with dust removal effect according to claim 4 is characterized in that: The connecting rod (73) is slidably connected to the connecting hole (74) of each fixed plate (71), and the cleaning brush (76) and the movable plate (72) are raised and lowered synchronously, and the end of the cleaning brush (76) is in contact with the fixed frame (10).

6. The grain cleaning device with dust removal effect according to claim 5, characterized in that: The connecting sleeve (5) is provided with a toggle structure (8) on the outside, and the toggle structure (8) includes a second fixed plate (81) and a second movable plate (82), and the second fixed plate (81) is welded to the outside of the connecting sleeve (5), and the second movable plate (82) is slidably connected to the outside of the connecting sleeve (5), and a telescopic spring (86) is provided at the end of the connecting rod (73) and between the second fixed plate (81) and the second movable plate (82), and the ends of the two connecting rods (73) are screwed with the second movable plate (82), and the connecting rod (73) is slidably connected to the second fixed plate (81). The ends of the two connecting rods 1 (73) are both provided with connecting blocks (83), the interior of the connecting blocks (83) is provided with connecting rod 2 (84), the side wall of the connecting sleeve (5) is provided with an intermediate block (85) located at the connecting rod 2 (84), the interior of the intermediate block (85) is rotatably connected to a rotating column (89), the interior of the rotating column (89) is provided with a sliding groove (810), the interior of the sliding groove (810) is slidably connected to the connecting rod 2 (84), and the other ends of the two connecting rods 2 (84) are respectively located below the swing plate 1 (62) and below the swing plate 2 (63).

7. The grain cleaning device with dust removal effect according to claim 6, characterized in that: The lower surface edges of the swing plate 1 (62) and the lower surface edges of the swing plate 2 (63) are both provided with a snap-fitting groove (88), and the ends of the two connecting rods 2 (84) are both integrally provided with a snap-fitting block (87), and the snap-fitting block (87) is adapted to the inside of the snap-fitting groove (88).

8. The grain cleaning device with dust removal effect according to claim 7, characterized in that: When the swing plate 1 (62) and the swing plate 2 (63) are unfolded, the telescopic spring (86) contracts, and the engaging block (87) at the end of the connecting rod 2 (84) engages with the engaging groove (88).

9. The grain cleaning device with dust removal effect according to claim 7, characterized in that: When the telescopic spring (86) is extended, the end of the second connecting rod (84) is contacted with the end of the first swing plate (62) and the end of the second swing plate (63).

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