Agricultural planting threshing device with dustproof protection function

Abstract

The invention belongs to the technical field of agricultural production, and discloses an agricultural planting threshing device with dustproof protection, which comprises an outer shell, a shelling plate is arranged in the outer shell, a mounting column is fixedly connected between the shelling plate and the outer shell, and a plurality of V-shaped grooves distributed at equal intervals are formed in the upper edge of the shelling plate. A rectangular groove communicating with the V-shaped groove is formed in the surface of the shelling plate, a rectangular plate is arranged above the outer shell, a first conveying belt and a second conveying belt located on the lower side of the first conveying belt are installed on the rectangular plate, and the overall contour of the first conveying belt is trapezoidal; a triangular feeding opening is formed between one side of the inclined face of the first conveying belt and the second conveying belt, the first conveying belt and the second conveying belt are attached to each other, and a threshing mechanism used for driving the rectangular plate is arranged in the outer shell. By arranging the threshing mechanism, rhizomes of peanuts enter a rectangular groove through a V-shaped groove and then are pulled towards the side away from the shelling plate, and the peanuts fall off.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural production, and in particular relates to a threshing device for agricultural planting with dustproof protection. Background Art

[0002] Agriculture is an industry that uses the growth and development laws of plants and animals to obtain products through artificial cultivation. Agriculture belongs to the primary industry, and the science that studies agriculture is agronomy. The objects of agricultural labor are plants, animals and other organisms, and the products obtained come from the organisms themselves, such as silk and musk. Agriculture is a basic industry that provides support for the construction and development of the national economy.

[0003] Planting is one of the main components of agriculture. It is a social production sector that uses the life functions of plants to obtain food, non-staple food, feed and industrial raw materials through artificial cultivation. It includes the cultivation of various crops, forests, fruit trees, medicinal and ornamental plants. There are food crops, cash crops, vegetable crops, green manure crops, feed crops, forage, flowers and other horticultural crops. In China, it usually refers to the production of crops such as grain, cotton, oil, sugar, hemp, silk, tobacco, tea, fruit, medicine, and miscellaneous crops. It also refers to agriculture in a narrow sense, also known as crop cultivation. It usually refers to the agricultural production sector that cultivates crops to obtain plant products. In China, planting is combined with forestry, animal husbandry, sideline industries and fisheries as agriculture in a broad sense. Abroad, planting is generally combined with animal husbandry and collectively referred to as agriculture.

[0004] Peanuts are also known as groundnuts and dicotyledonous plants. The veins of the leaves are reticular and the seeds are covered with peanut skin. In history, they were once called longevity fruit, ground beans, fallen flower ginseng, ground pine, longevity fruit, fan beans, figs, ground fruit, and Tangren beans. Peanuts are good for nourishing and helping to prolong life, so they are also called "longevity fruit" by the people. Like soybeans, they are also known as "plant meat" and "meat in vegetarian food".

[0005] After the peanuts are ripe, their roots need to be pulled out of the soil first, and then the ripe peanuts are picked from the roots. Currently, most farmers tend to pick them manually or thresh the peanuts by beating them vigorously. This operation requires a lot of labor and has low work efficiency. Summary of the invention

[0006] In order to solve the problem of low peanut threshing efficiency mentioned in the above background technology, the present invention provides a threshing device for agricultural planting with dust protection.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a threshing device for agricultural planting with dustproof protection, comprising an external shell, a shelling plate is arranged in the external shell, a mounting column is fixedly connected between the shelling plate and the external shell, a plurality of equidistantly distributed V-shaped grooves are provided at the upper edge of the shelling plate, a rectangular groove interconnected with the V-shaped grooves is provided on the surface of the shelling plate, a rectangular plate is arranged above the external shell, a first conveyor belt and a second conveyor belt located at the lower side of the first conveyor belt are installed on the rectangular plate, the overall contour of the first conveyor belt is trapezoidal, a triangular feeding port is formed between the inclined side of the first conveyor belt and the second conveyor belt, the first conveyor belt and the second conveyor belt are fitted with each other, and a threshing mechanism for driving the rectangular plate is arranged in the external shell.

[0008] Preferably, the threshing mechanism includes a U-shaped rod fixed on the side wall of the external shell, the end of the U-shaped rod away from the external shell is fixedly connected to a rectangular bearing seat, an L-shaped bearing plate is fixedly installed on the side wall of the rectangular bearing seat, an electric push rod is fixed to the end of the L-shaped bearing plate away from the rectangular bearing seat, and a U-shaped plate is fixed to the end of the electric push rod away from the L-shaped bearing plate, and the U-shaped plate is sleeved on the rectangular bearing seat.

[0009] Preferably, the threshing mechanism also includes two bending rods fixed on the surface of the rectangular plate and symmetrically distributed, and inclined grooves are provided on the opposite side walls of the U-shaped plate. The free ends of the two bending rods are respectively slidably connected to the two inclined grooves, and the inclined grooves are inclined from bottom to top from the side close to the rectangular plate to the side away from the rectangular plate.

[0010] Preferably, a rectangular rod is fixedly connected between the two bending rod bodies, and the rectangular bearing seat is provided with a vertical groove for the rectangular rod to slide, and a transverse groove perpendicular to the vertical groove, and the transverse groove is slidably adapted to the rectangular rod.

[0011] Preferably, a dustproof mechanism is provided in the external shell body, and the dustproof mechanism includes a plug pipe inserted into the side wall of the external shell body, and a U-shaped tube connected to the interior of the plug pipe is fixedly installed at one end of the plug pipe located on the outside of the external shell body, and a plurality of extension rods equidistantly distributed and connected to the interior of the U-shaped tube are fixed on the U-shaped tube, and the extension rod passes through the external shell body, and a nozzle is installed at one end of the plug pipe located in the external shell body.

[0012] Preferably, the U-shaped tube is installed with a one-way water outlet valve and a one-way water inlet valve respectively located on both sides of the insert tube, and one end of the U-shaped tube close to the one-way water inlet valve is connected to an external water source. A piston plate is arranged in the insert tube, and a long rod extending to the outside of the insert tube is vertically fixed on the surface of the piston plate.

[0013] Preferably, the end of the long rod away from the piston plate is fixedly connected to a strip plate, telescopic limit rods are vertically fixed at both ends of the strip plate, the end of the telescopic limit rod away from the strip plate is fixed to the inner wall of the external shell, and a spring mounted on the telescopic limit rod is fixedly connected between the strip plate and the external shell.

[0014] Preferably, a linkage assembly is arranged in the external shell, and the linkage assembly comprises a U-shaped storage frame located in the external shell, a rectangular opening is opened on the bottom surface of the U-shaped storage frame, and a filter is installed in the rectangular opening.

[0015] Preferably, rectangular limiting plates are integrally fixed on opposite sides of the inner wall of the outer shell, and a movable groove that is mutually compatible with the rectangular limiting plates is opened on the U-shaped storage frame.

[0016] Preferably, a top plate is integrally fixed between the two side walls of the U-shaped storage frame, and two V-shaped wave grooves are provided on the top plate. Sliding rods are fixedly connected to the two side walls of the U-shaped plate, and the lower end of the sliding rod extends into the V-shaped wave groove and is slidably adapted to the V-shaped wave groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects: By setting up a threshing mechanism, the rectangular plate is driven, and the peanuts sandwiched between the first conveyor belt and the second conveyor belt are moved downward, so that the rhizomes of the peanuts pass through the V-shaped grooves into the rectangular grooves, and then are pulled toward the side away from the shelling plate, so that the peanuts on the rhizomes can fall off.

[0018] Since peanuts are pulled out of the soil, a large amount of dust will be generated while threshing the peanuts. By setting up a dust prevention mechanism, water mist dust reduction can be performed during the threshing process, and the peanuts can be cleaned at the same time. The water mist dust reduction does not require water to be transported by an external water pump, so no additional power source is required, which can effectively improve the overall energy saving of the device.

[0019] By setting a linkage component, the peanuts that fall off the root system can be shaken off to prevent the peanuts from piling up under the shelling plate, and the peanuts can be shaken to facilitate the cleaning of the peanuts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic cross-sectional structural diagram of the external shell in the present invention; Figure 3 The structure diagram of the threshing mechanism in the present invention is shown in FIG. Figure 1 ; Figure 4 The structure diagram of the threshing mechanism in the present invention is shown in FIG. Figure 2; Figure 5 The structure diagram of the threshing mechanism in the present invention is shown in FIG. Figure 3 ; Figure 6 It is a structural schematic diagram of the dust-proof mechanism in the present invention; Figure 7 It is a structural schematic diagram of the position of the piston plate in the present invention; Figure 8 It is a structural schematic diagram of the U-shaped storage frame in the present invention.

[0021] In the figure: 1, external shell; 21, shelling plate; 22, mounting column; 23, V-shaped groove; 24, rectangular groove; 31, rectangular plate; 32, first conveyor belt; 33, second conveyor belt; 34, loading port; 4, threshing mechanism; 41, U-shaped rod; 42, rectangular bearing seat; 43, L-shaped bearing plate; 44, electric push rod; 45, U-shaped plate; 46, bending rod body; 47, inclined groove; 48, rectangular rod; 49, horizontal groove; 410, vertical groove; 5. Dust-proof mechanism; 51. Insert tube; 52. U-shaped tube; 53. Extension rod; 54. Nozzle; 55. One-way water outlet valve; 56. One-way water inlet valve; 57. Piston plate; 58. Long rod; 59. Strip plate; 510. Telescopic limit rod; 511. Spring; 6. Linkage assembly; 61. U-shaped storage frame; 62. Rectangular opening; 63. Filter; 64. Rectangular limit plate; 65. Movable groove; 66. Top plate; 67. V-shaped wave groove; 68. Sliding rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0023] like Figure 1 to Figure 2 As shown, the present invention provides a threshing device for agricultural planting with dust protection, including an external shell 1, a shelling plate 21 is arranged in the external shell 1, a mounting column 22 is fixedly connected between the shelling plate 21 and the external shell 1, a plurality of equidistantly distributed V-shaped grooves 23 are provided at the upper edge of the shelling plate 21, and a rectangular groove 24 interconnected with the V-shaped groove 23 is provided on the surface of the shelling plate 21.

[0024] The rhizome of peanuts is fed into the rectangular groove 24 through the V-shaped groove 23, and then pulled toward the side away from the shelling plate 21, so that the peanuts on the rhizome can fall off.

[0025] like Figure 1 to Figure 2As shown, a rectangular plate 31 is provided above the outer shell 1, on which a first conveyor belt 32 and a second conveyor belt 33 located at the lower side of the first conveyor belt 32 are installed. The overall contour of the first conveyor belt 32 is a trapezoid, and a triangular loading port 34 is formed between the inclined side of the first conveyor belt 32 and the second conveyor belt 33, and the first conveyor belt 32 and the second conveyor belt 33 are in contact with each other.

[0026] A loading port 34 is provided to facilitate placing the peanuts pulled out of the soil onto the second conveyor belt 33; When the first conveyor belt 32 and the second conveyor belt 33 rotate, the peanuts placed on the second conveyor belt 33 can be conveyed to the side away from the loading port 34, and the peanuts are clamped between the first conveyor belt 32 and the second conveyor belt 33. At the same time, the root and stem parts of the peanuts are located outside the first conveyor belt 32 and the second conveyor belt 33 and are not clamped.

[0027] A threshing mechanism 4 for driving the rectangular plate 31 is arranged in the outer housing 1 .

[0028] like Figures 3 to 5 As shown, the threshing mechanism 4 includes a U-shaped rod 41 fixed on the side wall of the external shell 1, the end of the U-shaped rod 41 away from the external shell 1 is fixedly connected to a rectangular bearing seat 42, an L-shaped bearing plate 43 is fixedly installed on the side wall of the rectangular bearing seat 42, an electric push rod 44 is fixed to the end of the L-shaped bearing plate 43 away from the rectangular bearing seat 42, and a U-shaped plate 45 is fixed to the end of the electric push rod 44 away from the L-shaped bearing plate 43, and the U-shaped plate 45 is sleeved on the rectangular bearing seat 42.

[0029] The electric push rod 44 can be provided to drive the U-shaped plate 45 to move in the horizontal direction.

[0030] like Figures 3 to 5 As shown, the threshing mechanism 4 also includes two bending rods 46 fixed on the surface of the rectangular plate 31 and symmetrically distributed, and inclined grooves 47 are provided on the opposite side walls of the U-shaped plate 45. The free ends of the two bending rods 46 are respectively slidably connected in the two inclined grooves 47, and the inclined grooves 47 are inclined from bottom to top from the side close to the rectangular plate 31 to the side away from the rectangular plate 31.

[0031] like Figures 3 to 5 As shown, a rectangular rod 48 is fixedly connected between the two bending rod bodies 46 , and the rectangular bearing seat 42 is provided with a vertical groove 410 for the rectangular rod 48 to slide, and a transverse groove 49 perpendicular to the vertical groove 410 , and the transverse groove 49 is slidably adapted to the rectangular rod 48 .

[0032] When the rectangular rod 48 is located at the top of the vertical groove 410, the free end of the bending rod body 46 is also located at the top of the inclined groove 47. At this time, the vertical groove 410 can limit the rectangular rod 48 and the two bending rod bodies 46 from moving horizontally. Then, when the U-shaped plate 45 moves toward the side close to the U-shaped rod 41, the inner wall of the inclined groove 47 can push the bending rod body 46 to move downward, thereby driving the rectangular plate 31, the first conveyor belt 32 and the second conveyor belt 33 to move downward.

[0033] A dustproof mechanism 5 is arranged inside the outer shell 1 .

[0034] like Figure 6 to Figure 7 As shown, the dust-proof mechanism 5 includes a plug 51 inserted into the side wall of the external shell 1, and a U-shaped tube 52 which is interconnected with the interior of the plug 51 is fixedly installed at one end of the plug 51 located on the outside of the external shell 1, and a plurality of extension rods 53 which are equidistantly distributed and interconnected with the interior of the plug 51 are fixed on the U-shaped tube 52, and the extension rods 53 pass through the external shell 1, and a nozzle 54 is installed at one end located inside the external shell 1.

[0035] The nozzle 54 in the above scheme is facing the shelling plate 21 in the external shell 1. When the shelling plate 21 is threshing the peanuts, the nozzle 54 can spray water at the threshing position of the peanuts, thereby achieving a dust-proof effect and cleaning the peanuts at the same time.

[0036] like Figure 6 to Figure 7 As shown, a one-way water outlet valve 55 and a one-way water inlet valve 56 are installed on the U-shaped tube 52, which are respectively located on both sides of the insert tube 51. One end of the U-shaped tube 52 close to the one-way water inlet valve 56 is connected to an external water source. A piston plate 57 is arranged in the insert tube 51, and a long rod 58 extending to the outside of the insert tube 51 is vertically fixed on the surface of the piston plate 57.

[0037] Since one end of the one-way water inlet valve 56 is connected to an external water source, the piston plate 57 can draw the external water source into the insert tube 51 when performing piston movement in the insert tube 51 .

[0038] like Figure 6 to Figure 7 As shown, one end of the long rod 58 away from the piston plate 57 is fixedly connected to the strip plate 59, and telescopic limit rods 510 are vertically fixed at both ends of the strip plate 59. The end of the telescopic limit rod 510 away from the strip plate 59 is fixed on the inner wall of the external shell 1, and a spring 511 mounted on the telescopic limit rod 510 is fixedly connected between the strip plate 59 and the external shell 1.

[0039] When the rectangular plate 31 moves downward and is on the same horizontal plane as the strip plate 59, the rectangular plate 31 can push the strip plate 59 to move along with it when it moves toward the side of the strip plate 59. When the rectangular plate 31 moves away from the strip plate 59, the spring 511 can push the strip plate 59 to return to its original position, thereby allowing the strip plate 59, the long rod 58 and the piston plate 57 to move back and forth in the horizontal direction.

[0040] A linkage assembly 6 is disposed in the outer housing 1 .

[0041] like Figure 2 and Figure 8 As shown, the linkage assembly 6 includes a U-shaped receiving frame 61 located in the external shell 1 , a rectangular opening 62 is formed on the bottom surface of the U-shaped receiving frame 61 , and a filter screen 63 is installed in the rectangular opening 62 .

[0042] The peanuts that fall off from the roots will fall into the U-shaped storage frame 61, and the filter 63 can filter out the wastewater when washing the peanuts.

[0043] like Figure 2 and Figure 8 As shown, rectangular limiting plates 64 are integrally fixed on opposite sides of the inner wall of the outer shell 1 , and a movable groove 65 that is adapted to the rectangular limiting plates 64 is opened on the U-shaped receiving frame 61 .

[0044] By providing the rectangular limiting plate 64 and the movable groove 65, the U-shaped storage frame 61 can be shaken within a small range in the external shell 1, thereby shaking the peanuts.

[0045] like Figure 2 and Figure 8 As shown, a top plate 66 is integrally fixed between the two side walls of the U-shaped storage frame 61, and two V-shaped wave grooves 67 are provided on the top plate 66. Slide rods 68 are fixedly connected to the two side walls of the U-shaped plate 45, and the lower end of the slide rod 68 extends into the V-shaped wave groove 67 and is slidably adapted to the V-shaped wave groove 67.

[0046] Since the front and rear sides of the U-shaped storage frame 61 are both attached to the inner wall of the external shell 1, the U-shaped storage frame 61 cannot move along the front and rear direction in the external shell 1. When the slide bar 68 moves along the front and rear direction following the U-shaped plate 45, the slide bar 68 can push the inner wall of the V-shaped wave groove 67 to drive the top plate 66 and the U-shaped storage frame 61 to shake along the left and right directions.

[0047] The working principle and use process of the present invention: The second conveyor belt 33 and the first conveyor belt 32 are started, and the second conveyor belt 33 and the first conveyor belt 32 are driven in opposite directions, and the peanuts placed on the second conveyor belt 33 are conveyed to the side away from the loading port 34, and the peanuts are clamped between the first conveyor belt 32 and the second conveyor belt 33, and the root and stem parts of the peanuts are located outside the first conveyor belt 32 and the second conveyor belt 33 and are not clamped; When the space between the second conveyor belt 33 and the first conveyor belt 32 is full of peanuts, the U-shaped plate 45 is driven by the electric push rod 44 to reciprocate in the horizontal direction; In the initial state, the rectangular rod 48 is located at the top of the vertical groove 410, and the free end of the bending rod body 46 is also located at the top of the inclined groove 47. At this time, the vertical groove 410 can limit the rectangular rod 48 and the two bending rod bodies 46, so that they cannot move horizontally. Then, when the U-shaped plate 45 moves toward the side close to the U-shaped rod 41, the inner wall of the inclined groove 47 can push the bending rod body 46 to move downward, thereby driving the rectangular plate 31, the first conveyor belt 32 and the second conveyor belt 33 to move downward, and the peanut rhizomes sandwiched between the first conveyor belt 32 and the second conveyor belt 33 are sent into the rectangular groove 24 through the V-shaped groove 23; At this time, the rectangular rod 48 has moved downward into the transverse groove 49, and the free end of the bent rod body 46 is located at the lower end of the inclined groove 47. Then, the U-shaped plate 45 continues to move closer to the U-shaped rod 41, which can drive the rectangular rod 48, the bent rod body 46 and the rectangular plate 31 to move closer to the U-shaped rod 41. The rectangular plate 31 can drive the first conveyor belt 32 and the second conveyor belt 33, as well as the peanuts sandwiched between the first conveyor belt 32 and the second conveyor belt 33 to move accordingly, so that the peanuts on the rhizomes are peeled off by the shelling plate 21, and the threshing work is completed. When the rectangular plate 31 moves downward and is on the same horizontal plane as the strip plate 59, the rectangular plate 31 can push the strip plate 59 to move along with it when it moves toward the U-shaped rod 41, and the strip plate 59 can drive the piston plate 57 to move along with it through the long rod 58; When the rectangular plate 31 moves away from the U-shaped rod 41, the spring 511 can push the strip plate 59 to return to its original position, and the strip plate 59 can drive the piston plate 57 to move with it through the long rod 58, so that the piston plate 57 performs piston motion in the insertion tube 51, sucking the external water source into the insertion tube 51, and spraying it on the peanuts through the nozzle 54, which can achieve a dust prevention effect; When the U-shaped plate 45 moves back and forth in the front-to-back direction, it can drive the two slide bars 68 fixed on its side walls to move accordingly. The slide bars 68 can push the top plate 66 and the U-shaped storage frame 61 to shake left and right, thereby preventing the peanuts from piling up in one position and improving the cleaning effect of the peanuts.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A threshing device for agricultural planting with dust protection, comprising an outer shell (1), characterized in that: A shelling plate (21) is arranged inside the outer shell (1), a mounting column (22) is fixedly connected between the shelling plate (21) and the outer shell (1), a plurality of equally spaced V-shaped grooves (23) are provided at the upper edge of the shelling plate (21), a rectangular groove (24) interconnected with the V-shaped grooves (23) is provided on the surface of the shelling plate (21), a rectangular plate (31) is arranged above the outer shell (1), a first conveyor belt (32) and a second conveyor belt (33) located below the first conveyor belt (32) are installed on the rectangular plate (31), the overall profile of the first conveyor belt (32) is a trapezoid, a triangular loading port (34) is formed between the inclined side of the first conveyor belt (32) and the second conveyor belt (33), the first conveyor belt (32) and the second conveyor belt (33) are in contact with each other, and a threshing mechanism (4) for driving the rectangular plate (31) is arranged inside the outer shell (1).

2. The threshing device for agricultural planting with dust protection according to claim 1 is characterized in that: The threshing mechanism (4) comprises a U-shaped rod (41) fixed on the side wall of the external shell (1); one end of the U-shaped rod (41) away from the external shell (1) is fixedly connected to a rectangular bearing seat (42); an L-shaped bearing plate (43) is fixedly mounted on the side wall of the rectangular bearing seat (42); an electric push rod (44) is fixed to one end of the L-shaped bearing plate (43) away from the rectangular bearing seat (42); a U-shaped plate (45) is fixed to one end of the electric push rod (44) away from the L-shaped bearing plate (43); and the U-shaped plate (45) is sleeved on the rectangular bearing seat (42).

3. The threshing device for agricultural planting with dust protection according to claim 2 is characterized in that: The threshing mechanism (4) further comprises two bent rods (46) fixed on the surface of the rectangular plate (31) and symmetrically distributed, and inclined grooves (47) are provided on opposite side walls of the U-shaped plate (45), and free ends of the two bent rods (46) are respectively slidably connected in the two inclined grooves (47), and the inclined grooves (47) are inclined from bottom to top from a side close to the rectangular plate (31) to a side away from the rectangular plate (31).

4. The threshing device for agricultural planting with dust protection according to claim 3 is characterized in that: A rectangular rod (48) is fixedly connected between the two bent rod bodies (46), and the rectangular bearing seat (42) is provided with a vertical groove (410) for the rectangular rod (48) to slide, and a transverse groove (49) perpendicular to the vertical groove (410), and the transverse groove (49) is slidably adapted to the rectangular rod (48).

5. The threshing device for agricultural planting with dust protection according to claim 4 is characterized in that: A dustproof mechanism (5) is arranged inside the external shell (1), and the dustproof mechanism (5) comprises a plug (51) plugged into the side wall of the external shell (1), and a U-shaped tube (52) is fixedly mounted on one end of the plug (51) located outside the external shell (1) and communicated with the interior of the plug (51), and a plurality of extension rods (53) are fixed on the U-shaped tube (52) and are distributed at equal distances and communicated with the interior of the plug (51), and the extension rod (53) passes through the external shell (1), and a nozzle (54) is mounted on one end of the extension rod (53) located inside the external shell (1).

6. The threshing device for agricultural planting with dust protection according to claim 5, characterized in that: The U-shaped tube (52) is provided with a one-way water outlet valve (55) and a one-way water inlet valve (56) respectively located on both sides of the insertion tube (51); one end of the U-shaped tube (52) close to the one-way water inlet valve (56) is connected to an external water source; a piston plate (57) is provided in the insertion tube (51); a long rod (58) extending to the outside of the insertion tube (51) is vertically fixed to the surface of the piston plate (57).

7. The threshing device for agricultural planting with dust protection according to claim 6, characterized in that: One end of the long rod (58) away from the piston plate (57) is fixedly connected to a strip plate (59), and telescopic limit rods (510) are vertically fixed to both ends of the strip plate (59). One end of the telescopic limit rod (510) away from the strip plate (59) is fixed to the inner wall of the external shell (1), and a spring (511) sleeved on the telescopic limit rod (510) is fixedly connected between the strip plate (59) and the external shell (1).

8. The threshing device for agricultural planting with dust protection according to claim 7, characterized in that: A linkage assembly (6) is arranged inside the external shell (1), and the linkage assembly (6) comprises a U-shaped storage frame (61) located inside the external shell (1), a rectangular opening (62) is provided on the bottom surface of the U-shaped storage frame (61), and a filter screen (63) is installed inside the rectangular opening (62).

9. The threshing device for agricultural planting with dust protection according to claim 8, characterized in that: Rectangular limiting plates (64) are integrally fixed on opposite sides of the inner wall of the outer shell (1), and a movable groove (65) adapted to fit the rectangular limiting plates (64) is provided on the U-shaped storage frame (61).

10. The threshing device for agricultural planting with dust protection according to claim 9, characterized in that: A top plate (66) is integrally fixed between the two side walls of the U-shaped storage frame (61), and two V-shaped wave grooves (67) are provided on the top plate (66). Slide rods (68) are fixedly connected to the two side walls of the U-shaped plate (45), and the lower end of the slide rod (68) extends into the V-shaped wave groove (67) and is slidably adapted to the V-shaped wave groove (67).

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