An automatic obstacle-avoiding intertillage, weeding and fertilizing device

Abstract

The present invention relates to the field of agricultural machinery, specifically to an automatic obstacle-avoiding inter-row cultivation, weeding and fertilizing device, which solves the problem of being able to automatically avoid obstacles while performing secondary crushing on the plowed soil at both ends to ensure thorough refinement of the soil. The device comprises a fixed box, the internal rotation of which is connected to a main shaft, a telescopic box installed at the bottom of the fixed box, a sliding box installed at the bottom of the telescopic box, and a sliding plate provided inside the sliding box. The present invention enables the traction component to drive the device to press down and displace, so that the plow cuts the land for weeding, fertilizing and plowing. At the same time, when the plow cuts the device, the sliding box can drive the plow cutter and the sliding plate to move upward to avoid the stone, thereby realizing the automatic obstacle avoidance function. At the same time, when the plow cuts the land, large clods of soil will be generated at both ends. The heavy tillage box of the device can perform secondary crushing to refine the soil and ensure thorough cultivation.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to an automatic obstacle-avoiding inter-row cultivation, weeding and fertilizing device. Background Art

[0002] Intertillage refers to the shallow turning of the soil to loosen the topsoil. Its primary purpose is to loosen the topsoil. It's typically performed in conjunction with weeding after rainfall or irrigation, or when the soil is compacted. Intertillage loosens the topsoil, increases soil aeration, raises ground temperature, promotes aerobic microbial activity and nutrient availability, removes weeds, encourages root expansion, and regulates soil moisture.

[0003] In actual agricultural production, the farmland environment is complex and changeable, and there are often obstacles such as stones and tree roots. These obstacles not only affect the effectiveness of tillage, weeding and fertilization, but may also cause damage to mechanical equipment, increasing maintenance costs and usage risks.

[0004] There are already some tillage, weeding and fertilization equipment in the existing technology. Traditional tillage machinery is often unable to effectively identify and avoid obstacles during operation, causing the equipment to collide with hard objects such as stones, which not only affects the normal operation of the equipment but may also damage the soil structure. In addition, traditional machinery will plow up large clods of soil at both ends during the tillage process, making it difficult to fully break up the large clods of soil, which will affect the growth of crop roots and nutrient absorption.

[0005] Therefore, the present invention provides an automatic obstacle-avoiding intertillage, weeding and fertilizing device to solve the above problems. Summary of the Invention

[0006] In view of the above situation, in order to overcome the defects of the existing technology, the present invention provides an automatic obstacle-avoiding inter-row cultivation, weeding and fertilizing device to solve the above-mentioned problem of being able to automatically avoid obstacles and simultaneously perform secondary crushing of the plowed soil at both ends to ensure thorough refinement of the soil.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] A tillage, weeding and fertilizing device with automatic obstacle avoidance comprises a fixed box, the interior of the fixed box is rotatably connected to a main shaft, a telescopic box is installed at the bottom of the fixed box, a sliding box is installed at the bottom of the telescopic box, a sliding plate is provided inside the sliding box, the sliding plate is connected to the main shaft in a driving manner, a fertilizer roller is rotatably connected to the inner bottom wall of the fixed box, one end of the fertilizer roller is located outside the bottom of the sliding box, and a plow is installed at the front end of the sliding plate; a connecting box is installed at one end of the fixed box, and a re-cultivation box is installed at the bottom of the connecting box, and the number of the re-cultivation boxes is multiple. The heavy tillage boxes are located at the rear ends of both sides of the sliding box, and the heavy tillage boxes are connected to the main shaft drive. Through the setting of the fixed box, the traction component can drive the device to press down and move, so that the plow can weed, fertilize and plow the land. At the same time, when the plow of the device encounters larger stones, the sliding box can drive the plow and the sliding plate to move upward to avoid the stones and realize the function of automatic obstacle avoidance. At the same time, when the plow plows the land, larger soil blocks will be generated at both ends. The heavy tillage box of the device can perform secondary crushing to refine the soil and ensure the thoroughness of the cultivated land.

[0009] Preferably, the main shaft is driven and connected to a rotating motor, and the rotating motor is installed on the outer wall of one end of the fixed box; the telescopic box includes a contraction box and a sliding box, the contraction box is fixedly installed on the bottom of the fixed box, and the sliding box is slidably connected to the inner wall of the contraction box, and a telescopic spring is fixedly installed on the top of the sliding box, and the other end of the telescopic spring is fixedly connected to the inner wall of the contraction box; when this device encounters an obstacle, the upward displacement of the sliding box will cause the telescopic box to contract.

[0010] The top end of the sliding wheel is fixedly mounted on the wheelchair of the vehicle frame, and the sliding wheel is engaged with the wheelchair of the vehicle frame.

[0011] Preferably, a push-up spring is fixedly installed on the side wall of the sliding plate, and the other end of the push-up spring is fixedly connected to the inner wall of the sliding box. Friction grooves are provided on the outer wall of the sliding plate, and the sliding plate matches the obstacle avoidance roller. A threaded block is installed on the top of the sliding box and located inside the sliding box. The threaded block is threadedly connected to the outer wall of the two-way screw, and the two-way screw is rotatably connected to the inside of the contraction box. The structure of the two-way screw is the same as that of the outer wall of the sliding screw; the push-up spring of this device is a strong spring. When in use, the sliding plate drives the plow to plow the land, and the soil is relatively soft. Under the dual action of , it can limit the sliding of the sliding plate, so that the sliding plate will only shrink slightly and will not affect normal tillage. When the device is initially used, under the action of the resisting spring, the sliding plate is located at the front end of the sliding box. At this time, under the action of the traction device, the plow blade is driven to plow the land. When encountering an obstacle, the sliding plate will limit the plowing land, and the traction device continues to drive the device to move. Under the effect of being unable to move for a long time, the plow blade drives the sliding plate to move inward, the resisting spring is forced to be compressed, and the obstacle avoidance roller is driven to rotate. Under the action of the connecting bevel teeth, the sliding screw is driven to rotate, thereby realizing automatic obstacle avoidance.

[0012] The top end of the sliding plate is fixedly mounted on the outer wall of the sliding screw, and the outer wall of the sliding plate is fixed with a toothed plate, and the toothed plate is connected to the bottom end of the sliding plate by a toothed plate. At the same time, the number of active bevel teeth is two, which will make the two-way lead screw and the sliding lead screw both drive connected with the main shaft, and the sliding plate is displaced inward to the limit position. When the two-way lead screw rotates, the upward displacement of the threaded block can drive the sliding box to move upward, so that the plow blade avoids the top of the stone. At the same time, when the sliding lead screw is engaged with the main shaft, the sliding lead screw is reversed. After the sliding box is lifted, the sliding plate slides out synchronously, which is convenient for avoiding the stone and then plowing the land again. The device can achieve the effect of automatic obstacle avoidance through the setting of the sliding lead screw and the two-way lead screw. When encountering a stone, the sliding plate can be retracted and the sliding box can be automatically lifted for obstacle avoidance. After avoiding, the sliding plate can be automatically extended to realize plowing the land again, avoiding the phenomenon of large-scale omissions, so that the avoidance and retraction of the device form a linkage effect, realizing the functions of automatic plowing and automatic obstacle avoidance.

[0013] Preferably, a partition is fixedly installed on the inner wall of the sliding plate, the interior of the sliding plate and one end of the partition is filled with fertilizer, a limiting shaft is installed at the axis of the fertilizer roller, and the fertilizer roller is rotatably connected to the inner wall of the partition through the limiting shaft.

[0014] Preferably, a fertilizer groove is provided on the outer wall of the fertilizer roller, and the number of the fertilizer grooves is multiple, and the multiple fertilizer grooves are evenly arranged; a limiting groove is provided on the outer wall of the limiting shaft, one end of the limiting groove is set to be arc-shaped, and the number of the limiting grooves is multiple, and a limiting plate is slidably connected to the inside of the partition, and a limiting spring is fixedly installed on the top of the limiting plate, and the top of the limiting spring is fixedly connected to the inner wall of the partition, and the limiting plate matches the limiting groove; one end of the fertilizer roller of this device is located at the lower part of the sliding plate, and when the sliding plate is plowing the land, the fertilizer roller will contact with the bottom of the land, so that the fertilizer roller rotates, and at this time the fertilizer roller rotates outward from the end with the fertilizer box, so that the fertilizer enters the interior of the fertilizer groove to realize fertilization. Through the setting of the fertilizer groove, this device can realize quantitative fertilization and avoid fertilizer waste. At the same time, the limiting shaft can limit the reversal of the fertilizer roller, and can automatically stop fertilizing when the sliding plate is displaced inward, thereby preventing repeated and unnecessary fertilization.

[0015] Preferably, the internal sliding connection of the fertilizer roller is provided with an adjusting shaft, and a convex shaft is fixedly mounted on the outer wall of the adjusting shaft; the internal sliding connection of the fertilizer trough is provided with a sealing block, and a top column is fixedly mounted on one end of the sealing block, and the top column abuts against the outer wall of the convex shaft; the number of sealing blocks of this device is half of that of the fertilizer trough, and when the fertilizer spacing needs to be adjusted, the convex shaft pushes the sealing block to seal the fertilizer trough by sliding the adjusting shaft, thereby realizing autonomous adjustment of the spacing for fertilization.

[0016] Preferably, a lower cutting plate is slidably connected to the inner bottom wall of the re-cultivation box, and a return spring is installed on the outer wall of the lower cutting plate, and the bottom of the return spring is fixedly connected to the inner bottom wall of the re-cultivation box; a reciprocating screw is rotatably connected to the inner wall of the connecting box, and the re-cultivation plate is threadedly connected to the outer wall of the reciprocating screw, and the bottom of the re-cultivation plate matches the top of the lower cutting plate, and a first reciprocating bevel gear is installed on the outer wall of one end of the reciprocating screw, and a second reciprocating bevel gear is installed on the outer wall of the main shaft, and the first reciprocating bevel gear is meshed with the second reciprocating bevel gear; when the re-cultivation box of this device is used for plowing, in order to avoid the phenomenon of large pieces of soil, the raised soil is cut and flattened by the lower cutting plate, and when the reciprocating screw rotates, it presses against the lower cutting plate for cutting, thereby realizing the function of linkage. At the same time, in order to avoid the phenomenon of too fine soil, the lower cutting plate of this device descends and cuts in sequence.

[0017] The beneficial effects of the present invention are:

[0018] 1. Through the setting of the fixed box, the traction component can drive the device to press down and move, so that the coulter can weed, fertilize and plow the land. At the same time, when the coulter of this device encounters larger stones, the sliding box can drive the coulter and the sliding plate to move upward to avoid the stones, thereby realizing the function of automatic obstacle avoidance. At the same time, when the coulter plows the land, larger soil blocks will be generated at both ends. The heavy tillage box of this device can perform secondary crushing to refine the soil and ensure the thoroughness of the cultivated land.

[0019] 2. This device can achieve the effect of automatic obstacle avoidance through the setting of sliding screw and bidirectional screw. When encountering stones, it can retract the sliding plate and automatically lift the sliding box to avoid obstacles. After avoiding, it can automatically extend the sliding plate to achieve plowing again, avoiding the phenomenon of large-scale omissions. The avoidance and retraction of this device form a linkage effect, realizing the functions of automatic plowing and automatic obstacle avoidance.

[0020] 3. One end of the fertilizer roller of the device is located at the lower part of the sliding plate. When the sliding plate is used to plow the land, the fertilizer roller will come into contact with the bottom of the land, causing the fertilizer roller to rotate. At this time, the fertilizer roller rotates outward from the end with the fertilizer box, allowing the fertilizer to enter the interior of the fertilizer trough to achieve fertilization. Through the setting of the fertilizer trough, the device can achieve quantitative fertilization and avoid fertilizer waste. At the same time, the limiting shaft can limit the reversal of the fertilizer roller. When the sliding plate moves inward, it can automatically stop fertilizing to prevent repeated and unnecessary fertilization.

[0021] 4. The number of sealing blocks in this device is half of the fertilizer trough. When the fertilizer spacing needs to be adjusted, the convex shaft pushes the sealing block to seal the fertilizer trough by sliding the adjustment shaft, thereby realizing autonomous adjustment of the spacing for fertilization.

[0022] 5. When the heavy tillage box of this device is plowing the land, in order to avoid the phenomenon of large lumps of soil, the raised soil is cut and flattened through the lower cutting plate. When the reciprocating screw rotates, it presses against the lower cutting plate to cut the soil, realizing the linkage function. At the same time, in order to avoid the phenomenon of excessive fineness of the soil, the lower cutting plate of this device descends and cuts the soil in sequence. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a front view of the present invention.

[0024] Figure 2 Schematic diagram of the top of the sliding box of the present invention.

[0025] Figure 3 It is a schematic diagram of a cross-section of the telescopic box of the present invention.

[0026] Figure 4 It is a schematic diagram of a cross-section of the sliding box of the present invention.

[0027] Figure 5 Schematic diagram of the transmission assembly of the present invention.

[0028] Figure 6 It is a schematic cross-sectional view of the sliding plate of the present invention.

[0029] Figure 7 It is a three-dimensional schematic diagram of the fertilizer roller of the present invention.

[0030] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged view at point A.

[0031] Figure 9 Schematic diagram of the interior of the fertilizer roller of the present invention.

[0032] Figure 10 It is a schematic diagram of the convex shaft and the abutment column of the present invention.

[0033] Figure 11 It is a schematic diagram of a cross-section of the connection box and the re-cultivation box of the present invention.

[0034] In the figure: 1, fixed box; 101, main shaft; 102, rotating motor;

[0035] 2. Telescopic box; 201. Contraction box; 202. Sliding box; 203. Telescopic spring;

[0036] 3. Sliding box; 301. Obstacle avoidance shaft; 302. Obstacle avoidance roller; 303. Pressing arc block; 304. Pressing spring; 305. Fixed rotating shaft; 306. Sliding screw; 307. Threaded plate; 308. Transmission assembly; 309. Threaded block; 310. Bidirectional screw; 311. First connecting bevel gear; 312. Second connecting bevel gear; 313. Sliding cylinder; 314. Rotating bevel gear; 315. Fixed plate; 316. Compression spring; 317. Active bevel gear;

[0037] 4. Sliding plate; 401. Retaining spring;

[0038] 5. Coulter; 6. Connecting box; 601. Reciprocating screw; 602. Heavy tillage plate; 603. First reciprocating bevel gear; 604. Second reciprocating bevel gear;

[0039] 7. Heavy tillage box; 701. Lower cutting plate; 702. Return spring;

[0040] 8. Fertilizer roller; 801. Partition; 802. Fertilizer; 803. Fertilizer trough; 804. Limiting shaft; 805. Limiting groove; 806. Limiting plate; 807. Limiting spring; 808. Sealing block; 809. Push-up column; 810. Adjusting shaft; 811. Convex shaft. DETAILED DESCRIPTION

[0041] The following will describe various embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0042] An automatic obstacle avoidance intertillage weeding and fertilizing device, as shown in the attached Figure 1-2 As shown, it includes a fixed box 1, the interior of the fixed box 1 is rotatably connected to the main shaft 101, the bottom of the fixed box 1 is installed with a telescopic box 2, the bottom of the telescopic box 2 is installed with a sliding box 3, the interior of the sliding box 3 is provided with a sliding plate 4, and the sliding plate 4 is driven and connected to the main shaft 101, as shown in the attached figure. Figure 6 As shown, a fertilizer roller 8 is rotatably connected to the inner bottom wall of the fixed box 1, one end of the fertilizer roller 8 is located outside the bottom of the sliding box 3, and a plow 5 is installed at the front end of the sliding plate 4; a connecting box 6 is installed at one end of the fixed box 1, and a heavy tillage box 7 is installed at the bottom of the connecting box 6. There are multiple heavy tillage boxes 7, and multiple heavy tillage boxes 7 are located at the rear ends of both sides of the sliding box 3. The heavy tillage boxes 7 are drivingly connected to the main shaft 101; through the setting of the fixed box 1, the present device can enable the traction component to drive the present device to press down and displace, so that the plow 5 weeds, fertilizes and plows the land. At the same time, when the plow 5 of the present device encounters larger stones, the sliding box 3 can drive the plow 5 and the sliding plate 4 to move upward, so as to avoid the stones and realize the function of automatic obstacle avoidance. At the same time, when the plow 5 plows the land, larger soil blocks will be generated at both ends. The heavy tillage box 7 of the present device can perform secondary crushing to refine the soil and ensure the thoroughness of the cultivated land.

[0043] As attached Figure 3 As shown, the main shaft 101 is driven and connected to the rotating motor 102, and the rotating motor 102 is installed on the outer wall of one end of the fixed box 1; the telescopic box 2 includes a contraction box 201 and a sliding box 202, the contraction box 201 is fixedly installed on the bottom of the fixed box 1, and the sliding box 202 is slidably connected to the inner wall of the contraction box 201, and a telescopic spring 203 is fixedly installed on the top of the sliding box 202, and the other end of the telescopic spring 203 is fixedly connected to the inner wall of the contraction box 201; when the device encounters an obstacle, the upward displacement of the sliding box 3 will cause the telescopic box 2 to contract.

[0044] As attached Figure 2-4As shown, the inner side wall of the sliding box 3 is rotatably connected to the obstacle avoidance shaft 301, and an obstacle avoidance roller 302 is fixedly installed on the outer wall of the middle part of the obstacle avoidance shaft 301. A friction pad is sleeved on the outer wall of the obstacle avoidance roller 302. A pressing arc block 303 is pressed against the outer wall of one end of the obstacle avoidance shaft 301, and a pressing spring 304 is fixedly installed on the top of the pressing arc block 303. The other end of the pressing spring 304 is fixedly connected to the inner bottom wall of the sliding box 3; a fixed rotating shaft 305 is rotatably connected to the inner bottom wall of the sliding box 3, and a first connecting bevel gear 311 is fixedly installed on the outer wall of the bottom of the fixed rotating shaft 305. The outer wall of one end of the obstacle avoidance shaft 301 is installed with a first connecting bevel gear 311. The second connecting bevel gear 312, the first connecting bevel gear 311 is meshed with the second connecting bevel gear 312, the inner top of the fixed shaft 305 is slidably connected to the sliding screw 306 through a limit bar, the outer wall of the sliding screw 306 is threadedly connected to a threaded plate 307, and the top of the sliding screw 306 is provided with a transmission assembly 308, and the transmission assembly 308 is matched with the main shaft 101; the bottom and top of the sliding screw 306 of the present device are set as a smooth rod, and the middle part is provided with a thread, which can avoid the phenomenon that the transmission assembly 308 cannot slide, and at the same time avoid the phenomenon that the sliding screw 306 cannot be extended to the inside of the fixed shaft 305.

[0045] As attached Figure 4 As shown, a push-up spring 401 is fixedly installed on the side wall of the sliding plate 4, and the other end of the push-up spring 401 is fixedly connected to the inner side wall of the sliding box 3. A friction pattern is provided on the outer wall of the sliding plate 4. The sliding plate 4 matches the obstacle avoidance roller 302. A threaded block 309 is installed on the top of the sliding box 3 and located inside the sliding box 202. The threaded block 309 is threadedly connected to the outer wall of the two-way screw 310, and the two-way screw 310 is rotatably connected to the inside of the contraction box 201. The structure of the two-way screw 310 is the same as that of the outer wall of the sliding screw 306; the push-up spring 401 of this device is a strong spring. When in use, the sliding plate 4 drives the plow 5 to plow the land, and the soil is relatively soft. Under the action of weight, the sliding of the sliding plate 4 can be limited, so that the sliding plate 4 will only shrink slightly and will not affect normal tillage. When the device is initially used, under the action of the resisting spring 401, the sliding plate 4 is located at the front end of the sliding box 3. At this time, under the action of the traction device, the plow 5 is driven to plow the land. When encountering an obstacle, the sliding plate 4 will limit the plowing land, and the traction device continues to drive the device to move. Under the action of being unable to move for a long time, the plow 5 drives the sliding plate 4 to move inward, and the resisting spring 401 is forced to be compressed. At the same time, the obstacle avoidance roller 302 is driven to rotate, and under the action of the connecting bevel teeth, the sliding screw 306 is driven to rotate, thereby achieving automatic obstacle avoidance.

[0046] As attached Figure 5As shown, the transmission assembly 308 includes a slide 313 and a fixed plate 315. The slide 313 is limitedly slidably connected to the outer wall of the top of the sliding screw 306. The inner wall of the slide 313 is provided with friction lines. The outer wall of the slide 313 is fixedly installed with a rotating bevel gear 314. The top of the rotating bevel gear 314 is installed with a compression spring 316 through a bearing. The other end of the compression spring 316 is connected to the bottom of the fixed plate 315. The fixed plate 315 is fixedly installed on the outer wall of the upper part of the sliding screw 306. The outer wall of 101 is fixedly mounted with an active bevel gear 317, which matches the rotating bevel gear 314. When the sliding plate 4 moves inward to realize the rotation of the sliding screw 306, the threaded plate 307 will move upward, so that the threaded plate 307 pushes against the slide cylinder 313 and moves upward. At this time, the rotating bevel gear 314 on the outer wall of the slide cylinder 313 will mesh with the active bevel gear 317, and the slide cylinder 313 on the outer wall of the bidirectional screw 310 of the device will mesh with the sliding screw 306. When the jack is lifted up, the sliding plate 310 and the sliding plate 306 are automatically lifted up to avoid the stone.

[0047] As attached Figure 6-7 As shown, a partition 801 is fixedly installed on the inner wall of the sliding plate 4, and the interior of the sliding plate 4 and one end of the partition 801 are filled with fertilizer 802. A limiting shaft 804 is installed at the axis of the fertilizer roller 8, and the fertilizer roller 8 is rotatably connected to the inner wall of the partition 801 through the limiting shaft 804.

[0048] As attached Figure 7-8As shown, a fertilizer groove 803 is provided on the outer wall of the fertilizer roller 8, and the number of the fertilizer grooves 803 is multiple, and the multiple fertilizer grooves 803 are evenly arranged; a limiting groove 805 is provided on the outer wall of the limiting shaft 804, and one end of the limiting groove 805 is set to an arc shape, and the number of the limiting grooves 805 is multiple, and the inner sliding connection of the partition 801 is provided with a limiting plate 806, and the top of the limiting plate 806 is fixedly installed with a limiting spring 807, and the top of the limiting spring 807 is fixedly connected to the inner wall of the partition 801, and the limiting plate 806 matches the limiting groove 805; the fertilizer roller of this device One end of 8 is located at the lower part of the sliding plate 4. When the sliding plate 4 is used to cultivate the land, the fertilizing roller 8 will come into contact with the bottom of the land, causing the fertilizing roller 8 to rotate. At this time, the fertilizing roller 8 rotates outward from the end with the fertilizer box, allowing the fertilizer to enter the interior of the fertilizing trough 803 to achieve fertilization. The device can achieve quantitative fertilization and avoid fertilizer waste through the setting of the fertilizing trough 803. At the same time, the limiting shaft 804 can limit the reversal of the fertilizing roller 8. When the sliding plate 4 moves inward, fertilization can be automatically stopped to prevent repeated and unnecessary fertilization.

[0049] As attached Figure 9-10 As shown, the internal sliding connection of the fertilizing roller 8 is provided with an adjusting shaft 810, and a convex shaft 811 is fixedly installed on the outer wall of the adjusting shaft 810; the internal sliding connection of the fertilizing trough 803 is provided with a sealing block 808, and a top column 809 is fixedly installed on one end of the sealing block 808, and the top column 809 abuts against the outer wall of the convex shaft 811; the number of sealing blocks 808 in this device is half of the number of the fertilizing trough 803. When the fertilizing spacing needs to be adjusted, the convex shaft 811 pushes the sealing block 808 to seal the fertilizing trough 803 by sliding the adjusting shaft 810, thereby realizing autonomous adjustment of the spacing for fertilizing.

[0050] As attached Figure 11 As shown, a lower cutting plate 701 is slidably connected to the inner bottom wall of the re-cultivating box 7, and a return spring 702 is installed on the outer wall of the lower cutting plate 701. The bottom of the return spring 702 is fixedly connected to the inner bottom wall of the re-cultivating box 7; a reciprocating screw 601 is rotatably connected to the inner wall of the connecting box 6, and a re-cultivating plate 602 is threadedly connected to the outer wall of the reciprocating screw 601. The bottom of the re-cultivating plate 602 matches the top of the lower cutting plate 701, and a first reciprocating bevel gear 603 is installed on the outer wall of one end of the reciprocating screw 601. A second reciprocating bevel gear 604 is installed on the outer wall of the shaft 101, and the first reciprocating bevel gear 603 is meshed and connected with the second reciprocating bevel gear 604; when the heavy tillage box 7 of this device is used for plowing, in order to avoid the phenomenon of large pieces of soil, the raised soil is cut and flattened by the lower cutting plate 701, and when the reciprocating screw 601 rotates, it presses against the lower cutting plate 701 for cutting, realizing the linkage function. At the same time, in order to avoid the phenomenon of excessive fineness of the soil, the lower cutting plate 701 of this device descends and cuts in sequence.

[0051] It should be noted that in the description of the present invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and are not intended to indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0052] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0053] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. An automatic obstacle-avoiding intertillage weeding and fertilizing device, comprising a fixed box (1), characterized in that: The fixed box (1) is rotatably connected to a main shaft (101) inside, a telescopic box (2) is installed at the bottom of the fixed box (1), a sliding box (3) is installed at the bottom of the telescopic box (2), a sliding plate (4) is provided inside the sliding box (3), the sliding plate (4) is drivably connected to the main shaft (101), a fertilizer roller (8) is rotatably connected to the inner bottom wall of the fixed box (1), one end of the fertilizer roller (8) is located outside the bottom of the sliding box (3), and a plow (5) is installed at the front end of the sliding plate (4); A connecting box (6) is installed at one end of the fixed box (1), and a re-cultivation box (7) is installed at the bottom of the connecting box (6). The number of the re-cultivation boxes (7) is multiple, and the multiple re-cultivation boxes (7) are located at the rear ends of both sides of the sliding box (3). The re-cultivation boxes (7) are drivingly connected to the main shaft (101); The main shaft (101) is drivingly connected to a rotating motor (102), and the rotating motor (102) is mounted on an outer wall of one end of the fixed box (1); The telescopic box (2) comprises a retractable box (201) and a sliding box (202), wherein the retractable box (201) is fixedly mounted on the bottom of the fixed box (1), and the sliding box (202) is slidably connected to the inner wall of the retractable box (201), and a telescopic spring (203) is fixedly mounted on the top of the sliding box (202), and the other end of the telescopic spring (203) is fixedly connected to the inner wall of the retractable box (201); The inner side wall of the sliding box (3) is rotatably connected to an obstacle avoidance shaft (301), an obstacle avoidance roller (302) is fixedly installed on the outer wall of the middle part of the obstacle avoidance shaft (301), a friction pad is sleeved on the outer wall of the obstacle avoidance roller (302), a pressing arc block (303) is pressed against the outer wall of one end of the obstacle avoidance shaft (301), a pressing spring (304) is fixedly installed on the top of the pressing arc block (303), and the other end of the pressing spring (304) is fixedly connected to the inner bottom wall of the sliding box (3); A fixed rotating shaft (305) is rotatably connected to the inner bottom wall of the sliding box (3), a first connecting bevel gear (311) is fixedly installed on the outer wall of the bottom of the fixed rotating shaft (305), a second connecting bevel gear (312) is installed on the outer wall of one end of the obstacle avoidance shaft (301), the first connecting bevel gear (311) is meshedly connected with the second connecting bevel gear (312), the inner top of the fixed rotating shaft (305) is slidably connected to a sliding screw (306) through a limit bar, a threaded plate (307) is threadedly connected to the outer wall of the sliding screw (306), a transmission assembly (308) is provided on the top of the sliding screw (306), and the transmission assembly (308) matches the main shaft (101); A push-up spring (401) is fixedly installed on the side wall of the sliding plate (4), and the other end of the push-up spring (401) is fixedly connected to the inner wall of the sliding box (3). A friction pattern is provided on the outer wall of the sliding plate (4). The sliding plate (4) matches the obstacle avoidance roller (302). A threaded block (309) is installed on the top of the sliding box (3) and located inside the sliding box (202). The threaded block (309) is threadedly connected to the outer wall of the bidirectional lead screw (310). The bidirectional lead screw (310) is rotatably connected to the inside of the contraction box (201). The structure of the bidirectional lead screw (310) is the same as the structure of the outer wall of the sliding lead screw (306). A lower cutting plate (701) is slidably connected to the inner bottom wall of the re-cultivation box (7), a return spring (702) is installed on the outer wall of the lower cutting plate (701), and the bottom of the return spring (702) is fixedly connected to the inner bottom wall of the re-cultivation box (7); A reciprocating screw (601) is rotatably connected to the inner wall of the connecting box (6), a re-cultivating plate (602) is threadedly connected to the outer wall of the reciprocating screw (601), the bottom of the re-cultivating plate (602) matches the top of the lower cutting plate (701), a first reciprocating bevel gear (603) is installed on the outer wall of one end of the reciprocating screw (601), a second reciprocating bevel gear (604) is installed on the outer wall of the main shaft (101), and the first reciprocating bevel gear (603) is meshed with the second reciprocating bevel gear (604).

2. The automatic obstacle-avoiding intertillage weeding and fertilizing device according to claim 1, characterized in that: The transmission assembly (308) includes a slide (313) and a fixed disk (315), wherein the slide (313) is limitedly slidably connected to the outer wall of the top of the sliding screw (306), and the inner wall of the slide (313) is provided with friction lines. A rotating bevel gear (314) is fixedly installed on the outer wall of the slide (313), and a compression spring (316) is installed on the top of the rotating bevel gear (314) through a bearing, and the other end of the compression spring (316) is connected to the bottom of the fixed disk (315), and the fixed disk (315) is fixedly installed on the outer wall of the upper part of the sliding screw (306). An active bevel gear (317) is fixedly installed on the outer wall of the main shaft (101), and the active bevel gear (317) matches the rotating bevel gear (314).

3. The automatic obstacle-avoiding intertillage weeding and fertilizing device according to claim 2, characterized in that: A partition (801) is fixedly mounted on the inner wall of the sliding plate (4), and fertilizer (802) is filled inside the sliding plate (4) and at one end of the partition (801). A limiting shaft (804) is mounted at the axis of the fertilizer roller (8), and the fertilizer roller (8) is rotatably connected to the inner wall of the partition (801) via the limiting shaft (804).

4. The automatic obstacle-avoiding intertillage weeding and fertilizing device according to claim 3, characterized in that: A fertilizer groove (803) is provided on the outer wall of the fertilizer roller (8), and the number of the fertilizer grooves (803) is multiple, and the multiple fertilizer grooves (803) are evenly arranged; A limiting groove (805) is provided on the outer wall of the limiting shaft (804), one end of the limiting groove (805) is arranged in an arc shape, and the number of the limiting grooves (805) is multiple. A limiting plate (806) is slidably connected to the interior of the partition (801), and a limiting spring (807) is fixedly installed on the top of the limiting plate (806). The top of the limiting spring (807) is fixedly connected to the inner wall of the partition (801), and the limiting plate (806) matches the limiting groove (805).

5. The automatic obstacle-avoiding intertillage weeding and fertilizing device according to claim 4, characterized in that: An adjusting shaft (810) is slidably connected to the interior of the fertilizing roller (8), and a convex shaft (811) is fixedly mounted on the outer wall of the adjusting shaft (810); A sealing block (808) is slidably connected to the interior of the fertilizing trough (803), and a supporting column (809) is fixedly installed on one end of the sealing block (808), and the supporting column (809) is in contact with the outer wall of the convex shaft (811).

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