Intertillage weeding and fertilizing device capable of automatically avoiding obstacles

Abstract

The invention relates to the field of agricultural machinery, in particular to an intertillage weeding and fertilizing device capable of automatically avoiding obstacles, and solves the problems that the obstacles can be automatically avoided, soil at the two ends of ploughing can be subjected to secondary crushing, and thorough refining of the soil is guaranteed, the intertillage weeding and fertilizing device comprises a fixed box, and a main shaft is rotationally connected to the interior of the fixed box; a telescopic box is installed at the bottom of the fixed box, a sliding box is installed at the bottom of the telescopic box, and a sliding plate is arranged in the sliding box. According to the invention, a traction part can drive the device to press down and displace, so that a coulter can weed, fertilize and plough land, and when the coulter of the device encounters a larger stone, a sliding box can drive the coulter and a sliding plate to displace up, so as to avoid the stone and realize an automatic obstacle avoidance function; meanwhile, when the coulter plows the land, large soil blocks can be generated at the two ends, secondary crushing can be conducted through the re-ploughing box of the device, soil is refined, and thoroughness of ploughing is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and particularly relates to a weeding and fertilizing device for intertillage with automatic obstacle avoidance. Background Art

[0002] Intertillage refers to the operation mode of shallowly turning over and loosening the surface soil of the soil. Its main purpose is to loosen the surface soil, generally combined with weeding, and is carried out after rainfall, irrigation, and when the soil is compacted. Through intertillage, the surface soil can be loosened, the soil aeration can be increased, the ground temperature can be raised, the activities of aerobic microorganisms and the availability of nutrients can be promoted, weeds can be removed, the root system can be promoted to stretch, and the soil moisture condition can be adjusted.

[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 effects of intertillage, weeding, and fertilizing, but also may cause damage to mechanical equipment, increasing the maintenance cost and use risk.

[0004] In the prior art, there have been some weeding and fertilizing devices for intertillage. During the operation of traditional intertillage machinery, it is often unable to effectively identify and avoid obstacles, resulting in the equipment colliding with hard objects such as stones, which not only affects the normal operation of the equipment, but also may damage the soil structure. In addition, there will be relatively large soil clods at both ends of the soil turned up during the tillage process by traditional machinery, and it is difficult to fully break up the relatively large soil clods, which will affect the growth of crop roots and the absorption of nutrients.

[0005] Therefore, the present invention provides a weeding and fertilizing device for intertillage with automatic obstacle avoidance to solve the above problems. Summary of the Invention

[0006] In view of the above situation, in order to overcome the deficiencies of the prior art, the present invention provides a weeding and fertilizing device for intertillage with automatic obstacle avoidance to solve the problem that it can automatically avoid obstacles and at the same time perform secondary crushing on the soil at both ends of the turned-up soil to ensure the thorough refinement of the soil.

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

[0008] An automatic obstacle-avoiding intertillage, weeding and fertilizing device, including a fixed box, a main shaft is rotatably connected inside the fixed box, 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 arranged inside the sliding box, the sliding plate is drivingly connected with the main shaft, a fertilizing roller is rotatably connected to the inner bottom wall of the fixed box, one end of the fertilizing roller is located outside the bottom of the sliding box, and a plow blade is installed at the front end of the sliding plate; a connecting box is installed at one end of the fixed box, a re-tilling box is installed at the bottom of the connecting box, the number of the re-tilling boxes is multiple, and the multiple re-tilling boxes are located at the rear ends on both sides of the sliding box, and the re-tilling box is drivingly connected with the main shaft; through the setting of the fixed box, the traction component can drive the device to press down and displace, so that the plow blade can weed, fertilize and plow the land. At the same time, when the plow blade of the device encounters a large stone, the sliding box can drive the plow blade and the sliding plate to move upward to avoid the stone, realizing the function of automatic obstacle avoidance. At the same time, when the plow blade plows the land, large soil blocks will be generated at both ends. The re-tilling box of the device can perform secondary crushing to make the soil finer and ensure the thoroughness of tillage.

[0009] Preferably, the main shaft is drivingly connected with 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, the sliding box is slidably connected to the inner wall of the contraction box, 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 the device encounters an obstacle, at this time, the upward displacement of the sliding box will cause the telescopic box to contract.

[0010] Preferably, an obstacle-avoiding shaft is rotatably connected to the inner side wall of the sliding box, an obstacle-avoiding roller is fixedly installed on the outer wall of the middle part of the obstacle-avoiding shaft, a friction pad is sleeved on the outer wall of the obstacle-avoiding roller, a pressing arc block abuts against the outer wall of one end of the obstacle-avoiding shaft, a pressing spring is fixedly installed on the top of the pressing arc block, and the other end of the pressing spring is fixedly connected to the inner bottom wall of the sliding box; a fixed rotating shaft is rotatably connected to the inner bottom wall of the sliding box, a first connecting bevel gear is fixedly installed on the outer wall of the bottom of the fixed rotating shaft, a second connecting bevel gear is installed on the outer wall of one end of the obstacle-avoiding shaft, the first connecting bevel gear is meshed with the second connecting bevel gear, a sliding lead screw is slidably connected to the inner top of the fixed rotating shaft through a limiting strip, a threaded plate is threadedly connected to the outer wall of the sliding lead screw, and a transmission component is arranged at the top of the sliding lead screw, and the transmission component is matched with the main shaft; the bottom and the top of the sliding lead screw of the device are set as smooth rods, and the middle part is provided with threads, which can avoid the phenomenon that the transmission component cannot slide, and at the same time avoid the phenomenon that the sliding lead screw cannot extend into the fixed rotating shaft.

[0011] Preferably, a top spring is fixedly installed on the side wall of the sliding plate, the other end of the top spring is fixedly connected to the inner side wall of the sliding box, friction lines are formed on the outer wall of the sliding plate, the sliding plate is matched with the obstacle avoidance roller, a threaded block is installed at the top of the sliding box and inside the sliding box, the threaded block is threadedly connected to the outer wall of the bidirectional lead screw, the bidirectional lead screw is rotatably connected inside the contraction box, and the structure of the bidirectional lead screw is the same as that of the outer wall of the sliding lead screw; the top spring of this device is a strong spring. During use, the sliding plate drives the plow blade to plow the land. Since the soil is relatively soft, under the dual action of the friction lines and the friction pad, the sliding of the sliding plate can be restricted, so that the sliding plate will only shrink slightly and will not affect normal soil tillage. When this device is initially used, under the action of the top 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 then restrict the plowing, while the traction device continuously drives this device to move. Under the action of being unable to move forward for a long time, the plow blade drives the sliding plate to move inward, the top spring is forced to compress, and at the same time the obstacle avoidance roller is driven to rotate. Under the action of the connecting bevel gears, the rotation of the sliding lead screw is realized, thus achieving automatic obstacle avoidance.

[0012] Preferably, the transmission assembly includes a sliding cylinder and a fixed disk. The sliding cylinder is connected to the outer wall of the top of the sliding lead screw in a limited sliding manner. Friction lines are provided on the inner wall of the sliding cylinder. A rotating bevel gear is fixedly installed on the outer wall of the sliding cylinder. The top of the rotating bevel gear is installed with a compression spring through a bearing. The other end of the compression spring is connected to the bottom of the fixed disk. The fixed disk is fixedly installed on the outer wall of the upper part of the sliding lead screw. A driving bevel gear is fixedly installed on the outer wall of the main shaft. The driving bevel gear is matched with the rotating bevel gear. When the sliding plate moves inward to cause the sliding lead screw to rotate, at this time, the threaded plate will move upward, causing the threaded plate to push against the sliding cylinder to move upward. At this time, the rotating bevel gear on the outer wall of the sliding cylinder will mesh with the driving bevel gear. The sliding cylinders on the outer wall of the bidirectional lead screw and the outer wall of the sliding lead screw of the present device have the same structure. At the same time, the number of driving bevel gears is two. At this time, both the bidirectional lead screw and the sliding lead screw are drivingly connected to the main shaft. At the same time, when the sliding plate moves inward to the limit position and the bidirectional lead screw rotates, it can drive the sliding box to move upward through the upward movement of the threaded block, enabling the plow blade to avoid passing over the stone. At the same time, when the sliding lead screw meshes with the main shaft and the sliding lead screw rotates in reverse, after the sliding box is lifted, the sliding plate slides out synchronously, facilitating plowing again after avoiding the stone. Through the settings of the sliding lead screw and the bidirectional lead screw, the present device can achieve the effect of automatic obstacle avoidance. When encountering a stone, it can contract the sliding plate and automatically lift the sliding box to avoid the obstacle. After avoidance, it can automatically extend the sliding plate to achieve plowing again, avoiding the phenomenon of large-area omission, making the avoidance and contraction of the present 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. Fertilizer is filled inside the sliding plate and at one end of the partition. A limiting shaft is installed at the axis of the fertilizer application roller. The fertilizer application roller is rotatably connected to the inner wall of the partition through the limiting shaft.

[0014] Preferably, fertilizing grooves are formed on the outer wall of the fertilizing roller. The number of the fertilizing grooves is multiple, and the multiple fertilizing grooves are evenly arranged; a limiting groove is formed on the outer wall of the limiting shaft. One end of the limiting groove is arc-shaped. The number of the limiting grooves is multiple. A limiting plate is slidably connected inside the partition plate. A limiting spring is fixedly installed on the top of the limiting plate, and the top of the limiting spring is fixedly connected with the inner wall of the partition plate. The limiting plate is matched with the limiting groove; One end of the fertilizing roller of the device is located below the sliding plate. When the sliding plate tills the land, the fertilizing roller will be in contact with the bottom of the land, causing the fertilizing roller to rotate. At this time, the fertilizing roller rotates outward from the end with the fertilizer box, enabling the fertilizer to enter the fertilizing groove, achieving fertilization. Through the arrangement of the fertilizing groove, the device can achieve quantitative fertilization, avoiding waste of fertilizer. At the same time, the limiting shaft can limit the reverse rotation of the fertilizing roller. When the sliding plate moves inward, fertilization can automatically stop, preventing repeated and unnecessary fertilization.

[0015] Preferably, an adjusting shaft is slidably connected inside the fertilizing roller, and a convex shaft is fixedly installed on the outer wall of the adjusting shaft; a sealing block is slidably connected inside the fertilizing groove, and an abutting column is fixedly installed at one end of the sealing block. The abutting column abuts against the outer wall of the convex shaft; The number of the sealing blocks of the device is half of the number of the fertilizing grooves. When it is necessary to adjust the fertilizing spacing, the adjusting shaft is slid to make the convex shaft push the sealing block to seal the fertilizing groove, achieving 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. A return spring is installed on the outer wall of the lower cutting plate, and the bottom of the return spring is fixedly connected with the inner bottom wall of the re-cultivation box; a reciprocating lead screw is rotatably connected to the inner wall of the connection box. A re-cultivation plate is threadedly connected to the outer wall of the reciprocating lead screw. The bottom of the re-cultivation plate is matched with the top of the lower cutting plate. A first reciprocating bevel gear is installed on the outer wall of one end of the reciprocating lead screw, and a second reciprocating bevel gear is installed on the outer wall of the main shaft. The first reciprocating bevel gear is meshed with the second reciprocating bevel gear; When the re-cultivation box of the device tills the land, in order to avoid the phenomenon of large lumps of soil, the raised soil is chopped and leveled by the lower cutting plate. When the reciprocating lead screw rotates, it abuts against the lower cutting plate for chopping, realizing the linkage function. At the same time, in order to avoid the phenomenon of overly fine soil, the lower cutting plates of the device descend in sequence for chopping.

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

[0018] 1. Through the setting of the fixed box, this device can enable the traction component to drive the device to press down and displace, so that the plow blade can weed, fertilize, and plow the land. At the same time, when the plow blade of this device encounters a large stone, it can enable the sliding box to drive the plow blade and the sliding plate to displace upward to avoid the stone, realizing the function of automatic obstacle avoidance. At the same time, when the plow blade plows the land, large soil blocks will be generated at both ends. The re-cultivation box of this device can perform secondary crushing to make the soil finer and ensure the thoroughness of plowing.

[0019] 2. Through the setting of the sliding lead screw and the bidirectional lead screw, this device can achieve the effect of automatic obstacle avoidance. When encountering a stone, it can contract the sliding plate and automatically lift the sliding box to avoid the obstacle. After avoidance, it can automatically extend the sliding plate to realize plowing again, avoiding the phenomenon of large-area omission, making the avoidance and contraction of this device form a linkage effect, and realizing the functions of automatic plowing and automatic obstacle avoidance.

[0020] 3. One end of the fertilizer roller of this device is located below the sliding plate. When the sliding plate plows the land, the fertilizer roller will be in 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, so that the fertilizer enters the inside of the fertilizer groove to achieve fertilization. Through the setting of the fertilizer groove, this device can achieve quantitative fertilization, avoid waste of fertilizer, and at the same time, the limiting shaft can limit the reverse rotation of the fertilizer roller. When the sliding plate displaces inward, it can automatically stop fertilization to prevent repeated and unnecessary fertilization.

[0021] 4. The number of sealing blocks of this device is half of the fertilizer groove. When it is necessary to adjust the fertilization spacing, the convex shaft is used to push the sealing block to seal the fertilizer groove through the sliding adjustment shaft, realizing autonomous adjustment of the spacing for fertilization.

[0022] 5. When the re-cultivation box of this device is plowing the land, in order to avoid the phenomenon of large soil blocks, the raised soil is chopped and leveled by the lower cutting plate. When the reciprocating lead screw rotates, it abuts against the lower cutting plate for chopping, realizing the linkage function. At the same time, in order to avoid the phenomenon of overly fine soil, the lower cutting plates of this device are lowered in sequence for chopping. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 2 It is a schematic diagram of the top of the sliding box of the present invention.

[0025] Figure 3 It is a schematic sectional view of the telescopic box of the present invention.

[0026] Figure 4 It is a schematic sectional view of the sliding box of the present invention.

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

[0028] Figure 6 Schematic diagram of the cross-section of the sliding plate of the present invention.

[0029] Figure 7 Schematic diagram of the three-dimensional view of the fertilizer application roller of the present invention.

[0030] Figure 8 For the present invention Figure 7 Enlarged schematic diagram at position A in the present invention.

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

[0032] Figure 10 Schematic diagram of the convex shaft and the abutting column abutting against each other of the present invention.

[0033] Figure 11 Schematic diagram of the 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. Shrinking 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 lead screw; 307. Threaded plate; 308. Transmission component; 309. Threaded block; 310. Bi-directional lead screw; 311. First connecting bevel gear; 312. Second connecting bevel gear; 313. Sliding cylinder; 314. Rotating bevel gear; 315. Fixed disk; 316. Compression spring; 317. Driving bevel gear;

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

[0038] 5. Plow blade; 6. Connection box; 601. Reciprocating lead screw; 602. Re-cultivation plate; 603. First reciprocating bevel gear; 604. Second reciprocating bevel gear;

[0039] 7. Re-cultivation box; 701. Lower cutting plate; 702. Return spring;

[0040] 8. Fertilizer application roller; 801. Partition board; 802. Fertilizer; 803. Fertilizer application groove; 804. Limiting shaft; 805. Limiting groove; 806. Limiting plate; 807. Limiting spring; 808. Sealing block; 809. Abutting column; 810. Adjusting shaft; 811. Convex shaft. Detailed implementation method

[0041] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0042] A middle tillage, weeding and fertilizing device with automatic obstacle avoidance, as shown in the attached Figure 1-2 figure, includes a fixed box 1. A main shaft 101 is rotatably connected inside the fixed box 1. 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 arranged inside the sliding box 3. The sliding plate 4 is drivingly connected to the main shaft 101. As shown in the attached Figure 6 figure, a fertilizing roller 8 is rotatably connected to the inner bottom wall of the fixed box 1. One end of the fertilizing roller 8 is located outside the bottom of the sliding box 3. A plow knife 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. A re-tilling box 7 is installed at the bottom of the connecting box 6. The number of the re-tilling boxes 7 is multiple. The multiple re-tilling boxes 7 are located at the rear ends on both sides of the sliding box 3. The re-tilling boxes 7 are drivingly connected to the main shaft 101. Through the setting of the fixed box 1, the traction component can drive the device to press down and displace, so that the plow knife 5 can weed, fertilize and plow the land. At the same time, when the plow knife 5 of the device encounters a large stone, the sliding box 3 can drive the plow knife 5 and the sliding plate 4 to move upward to avoid the stone, realizing the function of automatic obstacle avoidance. At the same time, when the plow knife 5 plows the land, large soil blocks will be generated at both ends. The re-tilling boxes 7 of the device can perform secondary crushing to make the soil finer and ensure the thoroughness of tilling the land.

[0043] As shown in the attached Figure 3 figure, the main shaft 101 is drivingly connected to a rotating motor 102. The rotating motor 102 is installed on the outer wall at 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 at the bottom of the fixed box 1. The sliding box 202 is slidably connected to the inner wall of the contraction box 201. A telescopic spring 203 is fixedly installed at the top of the sliding box 202. 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, at this time, the upward displacement of the sliding box 3 will cause the telescopic box 2 to contract.

[0044] As shown in the attached Figure 2-4As shown, an obstacle avoidance shaft 301 is rotatably connected to the inner side wall of the sliding box 3. 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 abuts 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. 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 meshed with the second connecting bevel gear 312. A sliding lead screw 306 is slidably connected to the inner top of the fixed rotating shaft 305 through a limiting strip. A threaded plate 307 is threadedly connected to the outer wall of the sliding lead screw 306. A transmission component 308 is arranged at the top of the sliding lead screw 306. The transmission component 308 is matched with the main shaft 101. The bottom and top of the sliding lead screw 306 of the device are set as smooth rods, and the middle part is provided with threads, which can avoid the phenomenon that the transmission component 308 cannot slide, and at the same time avoid the phenomenon that the sliding lead screw 306 cannot extend into the fixed rotating shaft 305.

[0045] As shown in the attachment Figure 4 As shown, a pressing spring 401 is fixedly installed on the side wall of the sliding plate 4. The other end of the pressing spring 401 is fixedly connected to the inner side wall of the sliding box 3. Friction lines are formed on the outer wall of the sliding plate 4. The sliding plate 4 is matched with the obstacle avoidance roller 302. A threaded block 309 is installed at the top of the sliding box 3 and 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. The pressing spring 401 of the device is a strong spring. When in use, the sliding plate 4 drives the plow blade 5 to plow the land. Since the soil is relatively soft, under the dual action of the friction lines and the friction pad, the sliding of the sliding plate 4 can be restricted, so that the sliding plate 4 will only shrink slightly and will not affect normal soil cultivation. When the device is initially used, under the action of the pressing spring 401, the sliding plate 4 is located at the front end of the sliding box 3. At this time, the plow blade 5 is driven to plow the land under the action of the traction device. When encountering an obstacle, at this time the sliding plate 4 will restrict the plowing, while the traction device continuously drives the device to move. Under the action of being unable to move forward for a long time, the plow blade 5 drives the sliding plate 4 to move inward, the pressing spring 401 is forcibly compressed, and at the same time the obstacle avoidance roller 302 is driven to rotate. Under the action of the connecting bevel gears, the rotation of the sliding lead screw 306 is realized, and automatic obstacle avoidance is achieved.

[0046] As shown in the attachment Figure 5As shown, the transmission assembly 308 includes a sliding cylinder 313 and a fixed disk 315. The sliding cylinder 313 is limited and slidably connected to the outer wall of the top of the sliding lead screw 306. Friction lines are provided on the inner wall of the sliding cylinder 313. A rotating bevel gear 314 is fixedly installed on the outer wall of the sliding cylinder 313. A compression spring 316 is installed at the top of the rotating bevel gear 314 through a bearing. The other end of the compression spring 316 is connected to the bottom of the fixed disk 315. The fixed disk 315 is fixedly installed on the outer wall of the upper part of the sliding lead screw 306. A driving bevel gear 317 is fixedly installed on the outer wall of the main shaft 101. The driving bevel gear 317 matches the rotating bevel gear 314. When the sliding plate 4 moves inward to cause the sliding lead screw 306 to rotate, at this time, the threaded plate 307 will move upward, causing the threaded plate 307 to abut against the sliding cylinder 313 and move upward. At this time, the rotating bevel gear 314 on the outer wall of the sliding cylinder 313 will mesh with the driving bevel gear 317. The sliding cylinder 313 on the outer wall of the bidirectional lead screw 310 of this device has the same structure as the sliding cylinder on the outer wall of the sliding lead screw 306. At the same time, the number of driving bevel gears 317 is two. At this time, both the bidirectional lead screw 310 and the sliding lead screw 306 will be drivingly connected to the main shaft 101. At the same time, when the sliding plate 4 moves inward to the limit position and the bidirectional lead screw 310 rotates, it can drive the sliding box 3 to move upward through the upward movement of the threaded block 309, enabling the plow blade 5 to avoid passing above the stone. At the same time, when the sliding lead screw 306 meshes with the main shaft 101, the sliding lead screw 306 rotates in reverse. After the sliding box 3 is lifted, the sliding plate 4 slides out synchronously, facilitating plowing again after avoiding the stone. Through the settings of the sliding lead screw 306 and the bidirectional lead screw 310, this device can achieve the effect of automatic obstacle avoidance. When encountering a stone, it can contract the sliding plate 4 and automatically lift the sliding box 3 to avoid obstacles. After avoidance, it can automatically extend the sliding plate 4 to achieve plowing again, avoiding the phenomenon of large-area omission, enabling the avoidance and contraction of this device to form a linkage effect, and realizing the functions of automatic plowing and automatic obstacle avoidance.

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

[0048] As shown in the attached Figure 7-8As shown, fertilizing grooves 803 are formed on the outer wall of the fertilizing roller 8, and the number of the fertilizing grooves 803 is multiple, and the multiple fertilizing grooves 803 are evenly arranged; limiting grooves 805 are formed on the outer wall of the limiting shaft 804, one end of the limiting groove 805 is arc-shaped, the number of the limiting grooves 805 is multiple, a limiting plate 806 is slidably connected inside the partition plate 801, a limiting spring 807 is fixedly installed at the top of the limiting plate 806, the top of the limiting spring 807 is fixedly connected with the inner wall of the partition plate 801, and the limiting plate 806 is matched with the limiting groove 805; one end of the fertilizing roller 8 of the device is located below the sliding plate 4. When the sliding plate 4 plows the land, at this time, the fertilizing roller 8 will be in abutting contact with the bottom of the land, so that the fertilizing roller 8 rotates. At this time, the fertilizing roller 8 rotates outward from the end with the fertilizer box, so that the fertilizer enters into the fertilizing groove 803 to realize fertilization. Through the arrangement of the fertilizing groove 803, the device can realize quantitative fertilization, avoid waste of fertilizer, and at the same time, the limiting shaft 804 can limit the reverse rotation 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 shown in the attachment Figure 9-10 As shown, an adjusting shaft 810 is slidably connected inside the fertilizing roller 8, and a convex shaft 811 is fixedly installed on the outer wall of the adjusting shaft 810; a sealing block 808 is slidably connected inside the fertilizing groove 803, and an abutting column 809 is fixedly installed at one end of the sealing block 808, and the abutting column 809 abuts against the outer wall of the convex shaft 811; the number of the sealing blocks 808 of the device is half of the number of the fertilizing grooves 803. When it is necessary to adjust the fertilizing spacing, the adjusting shaft 810 is slid to make the convex shaft 811 push the sealing block 808 to seal the fertilizing groove 803, so as to realize fertilization with self-adjusted spacing.

[0050] As shown in the attachment Figure 11 As shown, a lower cutting plate 701 is slidably connected to the inner bottom wall of the secondary plowing 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 secondary plowing box 7; a reciprocating lead screw 601 is rotatably connected to the inner wall of the connecting box 6, a secondary plowing plate 602 is threadedly connected to the outer wall of the reciprocating lead screw 601, the bottom of the secondary plowing plate 602 is matched with 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 lead 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; when the secondary plowing box 7 of the device plows the land, in order to avoid the phenomenon of large lumps of soil, the raised soil is chopped and leveled by the lower cutting plate 701. When the reciprocating lead screw 601 rotates, it abuts against the lower cutting plate 701 for chopping to realize the linkage function. At the same time, in order to avoid the phenomenon of overly fine soil, the lower cutting plate 701 of the device descends and chops in sequence.

[0051] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0052] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] So far, the technical solution of the present invention has been described in combination with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope 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 arranged inside the sliding box (3), the sliding plate (4) is drivingly 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-cultivating box (7) is installed at the bottom of the connecting box (6). There are multiple re-cultivating boxes (7), and the multiple re-cultivating boxes (7) are located at the rear ends of both sides of the sliding box (3). The re-cultivating boxes (7) are drivingly connected to the main shaft (101).

2. The automatic obstacle-avoiding intertillage weeding and fertilizing device according to claim 1, characterized in that: 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); the retractable box (201) is fixedly mounted on the bottom of the fixed box (1); the sliding box (202) is slidably connected to the inner wall of the retractable box (201); a telescopic spring (203) is fixedly mounted on the top of the sliding box (202); the other end of the telescopic spring (203) is fixedly connected to the inner wall of the retractable box (201).

3. The automatic obstacle-avoiding intertillage weeding and fertilizing device according to claim 2, characterized in that: 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 mounted 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 abutted against the outer wall of one end of the obstacle avoidance shaft (301); a pressing spring (304) is fixedly mounted 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 tooth (311) is fixedly installed on the outer wall of the bottom of the fixed rotating shaft (305); a second connecting bevel tooth (312) is installed on the outer wall of one end of the obstacle avoidance shaft (301); the first connecting bevel tooth (311) is meshingly connected with the second connecting bevel tooth (312); a sliding screw (306) is slidably connected to the inner top of the fixed rotating shaft (305) 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 arranged on the top of the sliding screw (306); and the transmission assembly (308) matches the main shaft (101).

4. The automatic obstacle-avoiding intertillage weeding and fertilizing device according to claim 3, characterized in that: A push spring (401) is fixedly installed on the side wall of the sliding plate (4), and the other end of the push spring (401) is fixedly connected to the inner wall of the sliding box (3). The outer wall of the sliding plate (4) is provided with friction grooves. 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).

5. The automatic obstacle-avoiding intertillage weeding and fertilizing device according to claim 4, characterized in that: The transmission assembly (308) comprises a slide cylinder (313) and a fixed plate (315); the slide cylinder (313) is limitedly slidably connected to the outer wall of the top of the sliding screw (306); the inner wall of the slide cylinder (313) is provided with friction lines; a rotating bevel gear (314) is fixedly installed on the outer wall of the slide cylinder (313); a compression spring (316) is installed on the top of the rotating bevel gear (314) 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); an active bevel gear (317) is fixedly installed on the outer wall of the main shaft (101); the active bevel gear (317) matches the rotating bevel gear (314).

6. The automatic obstacle-avoiding intertillage weeding and fertilizing device according to claim 5, characterized in that: A partition (801) is fixedly mounted on the inner wall of the sliding plate (4); 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).

7. The automatic obstacle-avoiding intertillage weeding and fertilizing device according to claim 6, 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 plural. A limiting plate (806) is slidably connected to the inside 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).

8. The automatic obstacle-avoiding intertillage weeding and fertilizing device according to claim 7, characterized in that: An adjusting shaft (810) is slidably connected inside the fertilizer 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 inside the fertilizer trough (803), and a butting column (809) is fixedly installed on one end of the sealing block (808), and the butting column (809) butts against the outer wall of the convex shaft (811).

9. The automatic obstacle-avoiding intertillage weeding and fertilizing device according to claim 8, characterized in that: A lower cutting plate (701) is slidably connected to the inner bottom wall of the re-cultivating 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-cultivating box (7); A reciprocating screw (601) is rotatably connected to the inner wall of the connecting box (6), a heavy tillage plate (602) is threadedly connected to the outer wall of the reciprocating screw (601), the bottom of the heavy tillage 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), and 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 meshingly connected with the second reciprocating bevel gear (604).

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