Seed sowing device convenient for soil burying for agricultural cultivation

Abstract

The invention discloses a seed sowing device facilitating soil burying for agricultural cultivation, and particularly relates to the technical field of agricultural instruments.The seed sowing device comprises a frame, center shafts are rotationally connected to the front portion of the lower end of the frame in a bilateral symmetry mode, and a soil loosening structure slidably connected with a second mounting frame is jointly arranged on the sides, close to each other, of the two center shafts; a seeding structure is fixedly connected to the inner surface of the mounting frame I, and limiting plates are fixedly connected to the rear end of the mounting frame II in a bilateral symmetry manner. According to the seed sowing device convenient for soil burying for agricultural cultivation, the soil loosening structure is driven to act through the interaction of the central shaft and the soil loosening structure so as to cultivate a field and reclaim a sowing ditch, and seeds mixed with a base fertilizer are uniformly fed into the sowing ditch through the cooperation of the soil loosening structure and the sowing structure; and the cultivated soil is pushed back to cover the seeds again under the action of the seeding structure and the rolling roller, so that automatic ditching, seeding and soil covering are realized, the operation process is simplified, and the seeding efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a seed sowing device for agricultural cultivation which is convenient for soil burial. Background Art

[0002] In modern agricultural production, seed sowing is one of the key links. Traditional sowing methods mainly rely on manual operation, which is not only inefficient but also labor-intensive, and it is difficult to meet the needs of large-scale agricultural production. With the development of agricultural mechanization, various sowing devices have emerged to improve sowing efficiency and quality. However, the existing technology still has some shortcomings in practical applications, especially in the coordinated operation of furrowing, sowing and covering soil, which needs to be further optimized.

[0003] Existing agricultural seeding devices usually require trenching and sowing operations to be performed in sections. First, a trench opener is used to open a sowing trench in the soil, and then the seeds are sown in the trench. After sowing, additional base fertilizer is required to ensure that the seeds obtain sufficient nutrients in the early stages of growth. This process not only increases the number of operation steps, but also reduces the overall operation efficiency.

[0004] In addition, segmented operation may also lead to uneven distribution of seeds in the sowing furrow, affecting the growth quality and yield of crops. Therefore, developing a sowing device that can simultaneously complete furrowing, sowing and covering without the need for additional base fertilizer is an urgent problem to be solved in the current agricultural machinery field. Summary of the invention

[0005] The main purpose of the present invention is to provide a seed sowing device for agricultural cultivation that is easy to bury in the soil, which can effectively solve the problem that the existing device needs to dig trenches and sow seeds in sections and needs to apply additional base fertilizer after sowing before covering the soil, resulting in relatively low efficiency.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A seed sowing device for agricultural cultivation that is convenient for soil burial, comprises a frame, a central axis is rotatably connected to the front portion of the lower end of the frame, two central axes are fixedly connected to rollers on the sides away from each other, a mounting frame 2 is fixedly connected to the front portion of the upper end of the frame, a mounting frame 1 is fixedly connected to the middle portion of the upper end of the frame, a loosening structure slidably connected to the mounting frame 2 is commonly provided on the sides where the two central axes are close to each other, a sowing structure is fixedly connected to the inner surface of the mounting frame 1, a rolling roller is rotatably connected to the legs on both sides of the rear portion of the lower end of the frame, and a limiting plate is symmetrically fixedly connected to the rear end of the mounting frame 2.

[0008] Preferably, the loosening structure includes two cross plates fixedly connected to adjacent central axes, the ends of the two cross plates close to each other are commonly fixedly connected to compression shafts distributed in a ring, the inner surface of the second mounting frame is slidably connected to a connecting rod three, the upper end of the connecting rod three is fixedly connected to a limiting block, the lower end of the limiting block is fixedly connected to a spring two fixedly connected to the upper end of the second mounting frame, the lower end of the connecting rod three is fixedly connected to the central frame, the lower part of the inner surface of the central frame is slidably connected to the outer surface of the compression shaft located at the lower part, the lower end of the central frame is fixedly connected to a loosening component, and the outer surfaces of the central shafts on both sides are symmetrically provided with linkage structures transmission-connected to the sowing structure.

[0009] Preferably, the loosening component includes arc shovels symmetrically distributed on the left and right, and the lower parts of the two arc shovels that are away from each other are fixedly connected to side wing guard plates, and the rear ends of the two side wing guard plates are fixedly connected to guide plates, and the outlet directions of the two guide plates are both toward the central part of the center frame.

[0010] Preferably, the linkage structure includes a center disk fixedly connected to the outer surface of an adjacent center axis, the inner surface of the center disk is symmetrically provided with guide grooves, the inner surface of the guide groove is slidably connected with a sliding column, the rear end of the sliding column is fixedly connected to a connecting rod 2 which is slidably connected to the inner surface of an adjacent limit plate, the outer surface of the connecting rod 2 located in front of the limit plate is fixedly connected to a limit spring fixedly connected to the limit plate, and the front end of the connecting rod 2 is fixedly connected to the sowing structure.

[0011] Preferably, the sowing structure includes a storage box fixedly connected to an inner surface of an installation frame, a fertilizer cavity is symmetrically provided on the upper inner surface of the storage box, a seed cavity is provided on the portion of the inner surface of the storage box located between the two fertilizer cavities, a sowing assembly fixedly connected to a second connecting rod is provided on the lower inner surface of the storage box and its front end, and a soil covering plate is symmetrically fixedly connected to the lower end of the storage box.

[0012] Preferably, the sowing assembly includes a feeding component fixedly connected to the bottom wall of the inner cavity of the storage box, the front end of the storage box is provided with a spiral column fixedly connected to the second connecting rod for driving the feeding component, and the left and right sides of the feeding component located on the inner side of the adjacent fertilizer cavity are provided with hollow cylinders transmission-connected to the driving component.

[0013] Preferably, the driving component includes rotating disks symmetrically distributed on the left and right and rotatably connected to the front end of the storage box, the inner surfaces of the two rotating disks are slidably connected to spiral columns fixedly connected to the rear ends of two adjacent connecting rods, the rear ends of the two spiral columns are fixedly connected to the unloading component, and the lower part of the front end of the storage box is symmetrically rotatably connected to a synchronous disk connected to the hollow cylinder for transmission, and the outer surfaces of the two rotating disks and the two synchronous disks are connected by winding a transmission belt.

[0014] Preferably, the material discharge component includes a material discharge chute fixedly connected to the bottom wall of the inner cavity of the storage box, the inner cavity of the material discharge chute is connected to the lower end of the storage box, the upper end of the material discharge chute is fixedly connected to a mounting plate, and the inner surface of the mounting plate is provided with a cross-shaped sliding groove.

[0015] Preferably, a movable plate is slidably connected to the inner surface of the slide groove, a fixed plate slidably connected to the inner surface of the movable plate is fixedly connected to the inner surface of the slide groove, a plurality of circular holes are linearly distributed on the upper end of the fixed plate, a connecting groove connected to its inner cavity is provided at the upper and lower ends of the movable plate, the connecting grooves on the upper and lower sides are staggered with each other, the front and rear ends of the movable plate are fixedly connected to a spring fixedly connected to the inner surface of the mounting plate, and the left and right ends of the movable plate are fixedly connected to a connecting rod fixedly connected to the rear end of an adjacent spiral column.

[0016] Preferably, the two hollow cylinders are rotatably connected to the inner surfaces of adjacent feed troughs, the two hollow cylinders are transmission-connected to adjacent synchronization disks via connecting columns, and the outer surfaces of the two hollow cylinders are provided with a connecting groove 2 connected to their inner cavities, and the connecting groove 2 passes through the inner cavity of the adjacent fertilizer cavity and the inner cavity of the feed trough respectively during the rotation of the hollow cylinders.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention drives the roller to move in the cultivated land through traction, and drives the loosening structure to move through the interaction between the central axis and the loosening structure, thereby cultivating the field, thereby opening a sowing furrow, and through the cooperation of the loosening structure and the sowing structure, the seeds mixed with base fertilizer are evenly sent into the opened sowing furrow, and the sowing structure and the rolling roller push the reclaimed cultivated soil back to cover the seeds again, thereby realizing automatic furrowing, sowing and covering, simplifying the operation process and improving the sowing efficiency.

[0019] 2. The present invention drives the compression shaft to rotate around the axis of the cross plate through the cooperation between the central shaft and the cross plate, and periodically drives the center frame to move downward through the interaction between the compression shaft and the center frame. During this process, the center frame drives the loosening component to move downward and contact with the cultivated land. A V-shaped sowing furrow is opened on the cultivated land through the action of the loosening component, and the cultivated soil is retained near the sowing furrow through the action of the loosening component, which is convenient for subsequent re-covering of the soil, reduces the loss of cultivated soil after reclamation, and avoids the subsequent influence of insufficient soil covering on the germination efficiency of seeds.

[0020] 3. The present invention drives the unloading component to follow the moving frequency of the roller to sow in the sowing groove dug by the loosening component through the cooperation of the linkage structure and the driving component, and sends the base fertilizer mixed with the seeds into the sowing groove through the connecting groove 2 opened on the hollow cylinder, so as to provide nutrients and organic fertilizers for the subsequent germination of the seeds; synchronously, the mutual cooperation of the movable plate and the fixed plate can ensure that the number of seeds and the amount of base fertilizer in each sowing groove are in a balanced state, ensure the uniformity of the subsequent crop distribution, and reasonably control the planting density. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a rear view structural schematic diagram of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the soil loosening structure of the present invention;

[0024] Figure 4 It is a schematic cross-sectional structure diagram of the second installation frame of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the soil loosening component of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the linkage structure of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the seeding structure of the present invention;

[0028] Figure 8 It is a schematic diagram of the cross-sectional structure of the seeding structure of the present invention;

[0029] Fig. 9 It is a structural schematic diagram of the blanking component of the present invention;

[0030] Fig.10 It is a bottom view structural schematic diagram of the blanking component of the present invention;

[0031] Fig.11 It is a schematic diagram of the transmission relationship between the hollow cylinder and the rotating disk of the present invention;

[0032] Fig.12 It is a schematic diagram of the positional relationship between the hollow cylinder and the feed chute of the present invention.

[0033] In the figure: 1, frame; 2, mounting frame 1; 3, sowing structure; 31, storage box; 32, sowing assembly; 321, driving component; 3211, spiral column; 3212, rotating disk; 3213, synchronous disk; 322, feeding component; 3221, feeding trough; 3222, slide; 3223, fixed plate; 3224, round hole; 3225, movable plate; 3226, connecting rod 1; 3227, connecting groove 1; 3228, spring 1; 3229, mounting plate; 323, hollow cylinder; 3231, connecting groove 2; 33 , fertilizer cavity; 34, seed cavity; 35, soil covering plate; 4, roller; 41, center axis; 5, mounting frame two; 51, limit plate; 6, loosening structure; 61, center frame; 62, cross plate; 63, compression shaft; 64, loosening parts; 641, arc shovel; 642, side wing guard plate; 643, guide plate; 65, linkage structure; 651, center plate; 652, sliding column; 653, guide groove; 654, limit spring; 655, connecting rod two; 66, limit block; 67, connecting rod three; 68, spring two; 7, rolling roller. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] Embodiment 1, as Figure 1 and Figure 2 As shown, a seed sowing device for agricultural cultivation that is convenient for soil burial includes a frame 1, a central axis 41 is rotatably connected to the front of the lower end of the frame 1, and rollers 4 are fixedly connected to the sides of the two central axes 41 that are away from each other, a mounting frame 2 5 is fixedly connected to the front of the upper end of the frame 1, and a mounting frame 1 2 is fixedly connected to the middle of the upper end of the frame 1, a loosening structure 6 slidably connected to the mounting frame 2 5 is commonly provided on the sides of the two central axes 41 that are close to each other, a sowing structure 3 is fixedly connected to the inner surface of the mounting frame 1 2, and a rolling roller 7 is rotatably connected to the two side legs at the rear of the lower end of the frame 1, and a limiting plate 51 is symmetrically fixedly connected to the rear end of the mounting frame 2 5.

[0036] During the operation of this embodiment, the equipment is first installed on the smart agricultural vehicle, and the roller 4 is driven to move in the cultivated land through traction, and the loosening structure 6 is driven to move through the interaction between the central axis 41 and the loosening structure 6 to cultivate the field, thereby opening the sowing furrow, and the seeds and base fertilizer are evenly delivered into the opened sowing furrow through the cooperation of the loosening structure 6 and the sowing structure 3, and the cultivated soil is pushed back to cover the seeds again through the action of the sowing structure 3 and the rolling roller 7, thereby realizing automatic furrowing, sowing and covering, simplifying the operation process and improving the sowing efficiency.

[0037] Embodiment 2. Based on embodiment 1, this embodiment drives the compression shaft 63 to rotate around the axis of the cross plate 62 through the cooperation between the central shaft 41 and the cross plate 62, and periodically drives the central frame 61 to move downward through the interaction between the compression shaft 63 and the central frame 61. During this process, the central frame 61 drives the loosening component 64 to move downward and contact with the cultivated land. A V-shaped sowing groove is opened on the cultivated land through the action of the loosening component 64, and the cultivated soil is retained near the sowing groove through the action of the loosening component 64, so as to facilitate the subsequent re-covering of the soil, reduce the loss of cultivated soil after reclamation, and avoid the subsequent influence of insufficient soil covering on the germination efficiency of seeds.

[0038] Specifically, in order to achieve intermittent opening of sowing furrows to facilitate subsequent sowing, refer to Figure 3 and Figure 4 The loosening structure 6 includes two cross plates 62 fixedly connected to adjacent central shafts 41, and one end of the two cross plates 62 close to each other is commonly fixedly connected to a compression shaft 63 distributed in a ring. The inner surface of the mounting frame 25 is slidably connected with a connecting rod 3 67, the upper end of the connecting rod 3 67 is fixedly connected to a limiting block 66, and the lower end of the limiting block 66 is fixedly connected to a spring 2 68 fixedly connected to the upper end of the mounting frame 25. The lower end of the connecting rod 3 67 is fixedly connected to the central frame 61, and the lower part of the inner surface of the central frame 61 is slidably connected to the outer surface of the compression shaft 63 located at the lower part, and the lower end of the central frame 61 is fixedly connected to a loosening component 64, and the outer surfaces of the central shafts 41 on both sides are symmetrically provided with linkage structures 65 transmission-connected to the sowing structure 3.

[0039] During the rotation of the center shaft 41, the cross plate 62 will be driven to rotate. Since the cross plate 62 is cross-shaped, during the rotation, its four sides will move cyclically on a circular path, thereby driving the pressing shaft 63 to move in a circular manner. During the rotation of the pressing shaft 63 around the axis of the cross plate 62, the center frame 61 will be periodically pressed to move downward, so that the loosening component 64 is lower than the plane of the cultivated land and inserted into the cultivated land to turn the soil;

[0040] The connecting rod three 67 arranged on the inner surface of the mounting frame two 5 is used to limit the center frame 61. At the same time, the cooperation of the limit block 66 and the spring two 68 can drive the center frame 61 to rise when there is no force from the compression shaft 63, and drive the loosening component 64 to rise, thereby achieving automatic resetting, thereby realizing automatic cultivation of sowing furrows at a certain distance.

[0041] Furthermore, in order to guide the excavated soil to the middle during the furrowing process to prevent it from moving far away from the sowing furrow due to the force of reclamation, refer to Figure 5 The loosening component 64 includes arc shovels 641 that are symmetrically distributed on the left and right. The lower parts of the two arc shovels 641 that are away from each other are fixedly connected with side wing guard plates 642. The rear ends of the two side wing guard plates 642 are fixedly connected with guide plates 643. The exit directions of the two guide plates 643 are both toward the central part of the central frame 61.

[0042] The arc shovels 641 on both sides are V-shaped. After entering the soil layer, they can break the soil and make the excavated soil move backward along the trajectory of the side wing guard plate 642, and finally enter the two sides of the sowing ditch between the two arc shovels 641 under the action of the guide plate 643 for standby, so as to facilitate re-covering after subsequent sowing.

[0043] Embodiment 3: Based on embodiment 2, this embodiment further drives the unloading component 322 to follow the moving frequency of the roller 4 in the sowing groove dug by the loosening component 64 through the cooperation of the linkage structure 65 and the driving component 321, and delivers the base fertilizer mixed with the seeds into the sowing groove through the connecting groove 2 3231 provided on the hollow cylinder 323, so as to provide nutrients and organic fertilizers for the subsequent germination of the seeds; synchronously, the mutual cooperation of the movable plate 3225 and the fixed plate 3223 can ensure that the number of seeds and the amount of base fertilizer in each sowing groove are in a balanced state, thereby ensuring the uniformity of the subsequent crop distribution and reasonably controlling the planting density.

[0044] Specifically, in order to realize the driving of the sowing structure 3 so that it can intermittently move according to the frequency of the wheel movement and the furrowing spacing, refer to Figure 6 The linkage structure 65 includes a center disk 651 fixedly connected to the outer surface of the adjacent center axis 41, and the inner surface of the center disk 651 is symmetrically provided with guide grooves 653. The inner surface of the guide groove 653 is slidably connected with a sliding column 652. The rear end of the sliding column 652 is fixedly connected with a connecting rod 655 slidably connected to the inner surface of the adjacent limiting plate 51. The outer surface of the connecting rod 655 is fixedly connected to a limiting spring 654 fixedly connected to the limiting plate 51 at a portion located in front of the limiting plate 51, and the front end of the connecting rod 655 is fixedly connected to the sowing structure 3.

[0045] The center disk 651 will rotate along with the center shaft 41, and during the rotation, the limit spring 654 will be pulled forward intermittently along the track of the guide groove 653 through the guide groove 653 provided inside, thereby pulling the sowing assembly 32 forward periodically through the connecting rod 2 655, thereby synchronizing the frequency of sowing and furrowing.

[0046] Further, to achieve the placement of base fertilizer and seeds, refer to Figure 7 The sowing structure 3 includes a storage box 31 fixedly connected to the inner surface of the mounting frame 2, a fertilizer cavity 33 is symmetrically provided at the upper inner surface of the storage box 31, a seed cavity 34 is provided at the inner surface of the storage box 31 between the two fertilizer cavities 33, a sowing assembly 32 fixedly connected to the connecting rod 655 is provided at the lower inner surface of the storage box 31 and its front end, and a soil covering plate 35 is symmetrically fixedly connected to the lower end of the storage box 31.

[0047] The fertilizer chamber 33 is used for placing base fertilizer, and the seed chamber 34 is used for placing seeds. The bottom of the seed chamber 34 is the upper side of the sowing component 32. The bottom covering plate 35 is also V-shaped, but its opening direction is opposite to the arc shovel 641, which is used to collect the field soil dug out by the loosening component 64 and send it back to the sowing furrow where sowing and fertilization are completed.

[0048] Further, to achieve the placement of seeds, see Figure 8 The sowing component 32 includes a feeding component 322 fixedly connected to the bottom wall of the inner cavity of the storage box 31. The front end of the storage box 31 is provided with a spiral column 3211 fixedly connected to the connecting rod 655 for driving the feeding component 322. The left and right sides of the feeding component 322 located on the inner side of the adjacent fertilizer cavity 33 are both provided with a hollow cylinder 323 transmission-connected to the driving component 321.

[0049] The driving component 321 is mainly used to drive the unloading component 322 and the hollow cylinder 323 to realize the operations of sowing and fertilizing. The unloading component 322 is mainly used to release seeds into the sowing groove, and the main function of the hollow cylinder 323 is to send the fertilizer in the fertilizer cavity 33 into the unloading component 322 and fall into the sowing groove together with the seeds.

[0050] Further, in order to realize the operation frequency of the following linkage structure 65 to drive the unloading component 322 and the hollow cylinder 323 to move, refer to Fig. 9 and Fig.10 The driving component 321 includes rotating disks 3212 symmetrically distributed on the left and right and rotatably connected to the front end of the storage box 31. The inner surfaces of the two rotating disks 3212 are slidably connected with spiral columns 3211 fixedly connected to the rear ends of the adjacent connecting rods 655. The rear ends of the two spiral columns 3211 are fixedly connected to the unloading component 322. The lower part of the front end of the storage box 31 is symmetrically rotatably connected with a synchronous disk 3213 transmission-connected to the hollow cylinder 323. The outer surfaces of the two rotating disks 3212 and the two synchronous disks 3213 are connected by winding with a transmission belt.

[0051] The spiral column 3211 is connected to the connecting rod 2 655, and moves back and forth following the movement of the connecting rod 2 655. The rotating disk 3212 on its outer surface can rotate during the movement of the spiral column 3211, thereby driving the hollow cylinder 323 to rotate through the rotating disk 3212, and then sending the seeds and base fertilizer into the sowing furrow below through the unloading component 322.

[0052] Further, in order to achieve the connection between the seed chamber 34 and the sowing furrow opened in the field and intermittently transport the seeds downward, refer to Fig. 9 , Fig.10 , Fig.11 and Fig.12The material discharge component 322 includes a material discharge chute 3221 fixedly connected to the bottom wall of the inner cavity of the storage box 31, the inner cavity of the material discharge chute 3221 is connected to the lower end of the storage box 31, and a mounting plate 3229 is fixedly connected to the upper end of the material discharge chute 3221. A cross-shaped slide groove 3222 is provided on the inner surface of the mounting plate 3229;

[0053] A movable plate 3225 is slidably connected to the inner surface of the slide groove 3222, and a fixed plate 3223 slidably connected to the inner surface of the movable plate 3225 is fixedly connected to the inner surface of the slide groove 3222. A plurality of circular holes 3224 are linearly distributed on the upper end of the fixed plate 3223. A connecting groove 3227 connected to the inner cavity of the movable plate 3225 is provided at both the upper and lower ends. The connecting grooves 3227 on the upper and lower sides are staggered with each other. A spring 3228 fixedly connected to the inner surface of the mounting plate 3229 is fixedly connected to the front and rear ends of the movable plate 3225. A connecting rod 3226 fixedly connected to the rear end of the adjacent spiral column 3211 is fixedly connected to the left and right ends of the movable plate 3225.

[0054] The connecting rod 3226 follows the movement of the spiral column 3211, thereby driving the movable plate 3225 to slide in the slide groove 3222. The connecting groove 3227 opened on the upper part of the movable plate 3225 can allow the seeds to fall into the circular hole 3224 on the fixed plate 3223. When the spiral column 3211 drives the connecting rod 3226 to move forward, the upper connecting groove 3227 will be staggered with the circular hole 3224, and the lower connecting groove 3227 will be connected with the circular hole 3224. The seeds in the circular hole 3224 will fall into the lower feeding trough 3221 and finally fall into the sowing groove at the lower part of the lower feeding trough 3221. After the linkage structure 65 is reset, the spiral column 3211 will pull the connecting rod 3226 to reset the movable plate 3225. At this time, the upper connecting groove 3227 will be staggered with the circular hole 3224, and the circular hole 3224 will be exposed to the inner cavity of the seed cavity 34 again to replenish new seeds.

[0055] Further, in order to achieve the delivery of the base fertilizer mixed with seeds into the sowing furrow, refer to Fig.12 The two hollow cylinders 323 are both rotatably connected to the inner surface of the adjacent feeding trough 3221. The two hollow cylinders 323 are transmission-connected to the adjacent synchronization disk 3213 via a connecting column. The outer surfaces of the two hollow cylinders 323 are provided with a connecting groove 2 3231 connected to their inner cavities. The connecting groove 2 3231 passes through the inner cavity of the adjacent fertilizer cavity 33 and the inner cavity of the feeding trough 3221 respectively during the rotation of the hollow cylinder 323.

[0056] In the process of following the rotation of the rotating disk 3212, the hollow cylinder 323 can drive the connecting groove 2 3231 to rotate. Since the rotation of the rotating disk 3212 is not a complete cycle, but a reciprocating rotation, when the connecting groove 2 3231 is on the inner side of the fertilizer chamber 33, the fertilizer in the fertilizer chamber 33 will enter the hollow cylinder 323 through the connecting groove 2 3231. When the connecting groove 2 3231 is on the inner side of the discharge trough 3221, the fertilizer therein will flow out and enter the discharge trough 3221 and fall into the sowing groove together with the seeds, thereby realizing the automatic release of the base fertilizer.

[0057] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A seed sowing device for agricultural cultivation that is convenient for soil burial, comprising a frame (1), the front portion of the lower end of the frame (1) is symmetrically connected to a central axis (41) for rotation, two central axes (41) are fixedly connected to the sides away from each other with rollers (4), the front portion of the upper end of the frame (1) is fixedly connected to a second mounting frame (5), and the middle portion of the upper end of the frame (1) is fixedly connected to a first mounting frame (2), characterized in that: A soil loosening structure (6) slidably connected to the second mounting frame (5) is provided on one side of the two central axes (41) close to each other; a sowing structure (3) is fixedly connected to the inner surface of the first mounting frame (2); legs on both sides of the rear lower end of the vehicle frame (1) are rotatably connected to rolling rollers (7); and a limit plate (51) is fixedly connected to the rear end of the second mounting frame (5) in a left-right symmetrical manner.

2. A seed sowing device for agricultural cultivation that is convenient for soil burial according to claim 1, characterized in that: The loosening structure (6) comprises two cross plates (62) fixedly connected to adjacent central shafts (41); the ends of the two cross plates (62) close to each other are commonly fixedly connected to compression shafts (63) distributed in an annular shape; the inner surface of the second installation frame (5) is slidably connected to a connecting rod three (67); the upper end of the connecting rod three (67) is fixedly connected to a limiting block (66); the lower end of the limiting block (66) is fixedly connected to a spring two (68) fixedly connected to the upper end of the second installation frame (5); the lower end of the connecting rod three (67) is fixedly connected to the central frame (61); the lower part of the inner surface of the central frame (61) is slidably connected to the outer surface of the compression shaft (63) located at the lower part; the lower end of the central frame (61) is fixedly connected to a loosening component (64); the outer surfaces of the central shafts (41) on both sides are symmetrically provided with linkage structures (65) transmission-connected to the sowing structure (3).

3. A seed sowing device for agricultural cultivation that is convenient for soil burial according to claim 2, characterized in that: The loosening component (64) comprises arc-shaped shovels (641) that are symmetrically distributed on the left and right sides. The lower parts of the ends of the two arc-shaped shovels (641) that are away from each other are fixedly connected to side wing guard plates (642). The rear ends of the two side wing guard plates (642) are fixedly connected to guide plates (643). The outlet directions of the two guide plates (643) are both toward the central part of the central frame (61).

4. A seed sowing device for agricultural cultivation that is convenient for soil burial according to claim 2, characterized in that: The linkage structure (65) comprises a center disk (651) fixedly connected to the outer surface of the adjacent center shaft (41); the inner surface of the center disk (651) is symmetrically provided with guide grooves (653); the inner surface of the guide groove (653) is slidably connected to a sliding column (652); the rear end of the sliding column (652) is fixedly connected to a second connecting rod (655) slidably connected to the inner surface of the adjacent limiting plate (51); the outer surface of the second connecting rod (655) located in front of the limiting plate (51) is fixedly connected to a limiting spring (654) fixedly connected to the limiting plate (51); the front end of the second connecting rod (655) is fixedly connected to the sowing structure (3).

5. A seed sowing device for agricultural cultivation that is convenient for soil burial according to claim 4, characterized in that: The sowing structure (3) comprises a storage box (31) fixedly connected to the inner surface of the first mounting frame (2); a fertilizer cavity (33) is symmetrically provided at the upper portion of the inner surface of the storage box (31); a seed cavity (34) is provided at the portion of the inner surface of the storage box (31) located between the two fertilizer cavities (33); a sowing assembly (32) fixedly connected to the second connecting rod (655) is provided at the lower portion of the inner surface of the storage box (31) and its front end; and a soil covering plate (35) is symmetrically fixedly connected to the lower end of the storage box (31).

6. A seed sowing device for agricultural cultivation that is convenient for soil burial according to claim 5, characterized in that: The sowing assembly (32) comprises a feeding component (322) fixedly connected to the bottom wall of the inner cavity of the storage box (31); a spiral column (3211) fixedly connected to the second connecting rod (655) for driving the feeding component (322) is provided at the front end of the storage box (31); and portions on the left and right sides of the feeding component (322) located inside adjacent fertilizer cavities (33) are both provided with hollow cylinders (323) drivingly connected to the driving component (321).

7. A seed sowing device for agricultural cultivation that is convenient for soil burial according to claim 6, characterized in that: The driving component (321) comprises a rotating disk (3212) symmetrically distributed on the left and right and rotatably connected to the front end of the storage box (31); the inner surfaces of the two rotating disks (3212) are slidably connected to a spiral column (3211) fixedly connected to the rear end of the adjacent second connecting rod (655); the rear ends of the two spiral columns (3211) are fixedly connected to the unloading component (322); the lower part of the front end of the storage box (31) is symmetrically rotatably connected to a synchronous disk (3213) that is transmission-connected to the hollow cylinder (323); the outer surfaces of the two rotating disks (3212) and the two synchronous disks (3213) are connected by winding a transmission belt.

8. The seed sowing device for agricultural cultivation that is convenient for soil burial according to claim 7, characterized in that: The material discharge component (322) comprises a material discharge chute (3221) fixedly connected to the bottom wall of the inner cavity of the storage box (31); the inner cavity of the material discharge chute (3221) is communicated with the lower end of the storage box (31); the upper end of the material discharge chute (3221) is fixedly connected to a mounting plate (3229); and the inner surface of the mounting plate (3229) is provided with a cross-shaped slide groove (3222).

9. A seed sowing device for agricultural cultivation that is convenient for soil burial according to claim 8, characterized in that: The inner surface of the slide groove (3222) is slidably connected to a movable plate (3225), and the inner surface of the slide groove (3222) is fixedly connected to a fixed plate (3223) slidably connected to the inner surface of the movable plate (3225). A plurality of circular holes (3224) are linearly distributed on the upper end of the fixed plate (3223). The movable plate (3225) is provided with a connecting groove (3227) connected to its inner cavity at both the upper and lower ends, and the connecting grooves (3227) at the upper and lower sides are staggered with each other. The front and rear ends of the movable plate (3225) are fixedly connected to a spring (3228) fixedly connected to the inner surface of the mounting plate (3229), and the left and right ends of the movable plate (3225) are fixedly connected to a connecting rod (3226) fixedly connected to the rear end of an adjacent spiral column (3211).

10. The seed sowing device for agricultural cultivation that is convenient for soil burial according to claim 6, characterized in that: The two hollow cylinders (323) are both rotatably connected to the inner surface of the adjacent feeding trough (3221), and the two hollow cylinders (323) are transmission-connected to the adjacent synchronization disk (3213) via a connecting column. The outer surfaces of the two hollow cylinders (323) are each provided with a second connecting groove (3231) connected to the inner cavity thereof, and the second connecting groove (3231) passes through the inner cavity of the adjacent fertilizer cavity (33) and the inner cavity of the feeding trough (3221) respectively during the rotation of the hollow cylinder (323).

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