Grass seed sowing device for grass original ecological restoration

Abstract

The invention discloses a grass seed sowing device for grassland ecological restoration in the technical field of grassland ecological restoration, and the grass seed sowing device for grassland ecological restoration comprises a tractor, the tail of the tractor is detachably connected with a mechanical arm, the middle of the mechanical arm is vertically and fixedly connected with a cross arm, and the top of the cross arm is fixedly connected with a seed storage assembly; the seed storage assembly is used for storing and supplying grass seeds, the bottom of the cross arm is fixedly connected with a rotary tillage assembly, the rotary tillage assembly is used for rotary tillage and soil loosening before sowing, the tail end, away from the tractor, of the mechanical arm is fixedly connected with a plurality of branch arms arranged transversely, the tail ends of the branch arms are fixedly connected with furrowing blades, and the middles of the branch arms are fixedly connected with extension arms in the same direction. The tail ends of the extension arms are fixedly connected with soil covering assemblies, and the tops of the extension arms are fixedly connected with wind shields. The device is practical and efficient, water, fertilizer and seed mixed liquid is supplied to the bottom of the furrowing blade through the seed storage assembly, meanwhile, the wind shield and the furrowing blade shield sand wind for grass seed sowing, uniform sowing is achieved, and the grassland vegetation recovery effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of grassland ecological restoration, and in particular is a grass seed sowing device for grassland ecological restoration. Background Art

[0002] Grassland ecological restoration refers to the process of comprehensive restoration of damaged grassland ecosystems through ecological principles, combined with biological restoration, physical restoration, chemical restoration and engineering technology measures. In the process of grassland ecological restoration, the sowing of grass seeds is one of the key links. By sowing grass seeds in a reasonable and uniform manner, the recovery of grassland vegetation can be promoted and the stability and biodiversity of the grassland ecosystem can be improved.

[0003] At present, the mainstream method of germinating grass seeds is soaking in water. You can soak them in cold water for a period of time before sowing, and decide whether to add chemical agents according to the actual situation. Soaking grass seeds in water can increase the germination rate by 3%-7%, and can also make the germination time of seeds uniform, so that most seeds germinate in a period of time, which is convenient for management.

[0004] Although the existing grass seed sowing device can realize the mechanized sowing of grass seeds, it is difficult to sow the grass seeds evenly during the sowing process, and after the grass seeds are sown, there is a lack of an effective soil covering mechanism, which leads to uneven soil covering and affects the germination rate and growth quality of the grass seeds.

[0005] Since grasslands often have open and flat geographical landscapes, they are prone to windy and sandy weather. Strong winds interfere with the sowing and covering of grass seeds, and can easily blow away the sowing of grass seeds, further causing uneven sowing and affecting the recovery of grassland vegetation. Strong winds can also easily blow away the covering soil.

[0006] Therefore, it is necessary to propose a grass seed sowing device for grassland ecological restoration that can avoid strong wind interfering with the uniformity of grass seed sowing and soil covering, and has the functions of plowing, sowing and soil covering. Summary of the invention

[0007] In order to solve the above problems, the purpose of the present invention is to provide a grass seed sowing device for grassland ecological restoration, in which the water, fertilizer and seed mixture is supplied to the bottom of the trenching shovel by the seed storage component, so as to realize the simultaneous sowing of water, fertilizer and seeds. At the same time, the wind shield and the trenching shovel block the wind and sand for grass seed sowing, and the soil covering component covers the sown seeds with soil to achieve uniform sowing and improve the grassland vegetation restoration effect.

[0008] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a grass seed sowing device for grassland ecological restoration, comprising a tractor, a mechanical arm detachably connected to the rear of the tractor, a cross arm vertically fixedly connected to the middle of the mechanical arm, a seed storage assembly fixedly connected to the top of the cross arm, the seed storage assembly is used to store and supply grass seeds, a rotary tillage assembly is fixedly connected to the bottom of the cross arm, the rotary tillage assembly is used to rotary tillage and loosen the soil before sowing, the end of the mechanical arm away from the tractor is fixedly connected to a plurality of laterally arranged branch arms, the ends of the branch arms are fixedly connected to trenching shovels, the tips of the trenching shovels are all facing the front of the tractor, the middle of the branch arms are fixedly connected to extension arms in the same direction, the ends of the extension arms are fixedly connected to soil covering assemblies, and the tops of the extension arms are fixedly connected to windshields.

[0009] The principle of the basic solution is: the grass seeds in the seed storage component are mixed with water and fertilizer into a liquid state, and then supplied to the bottom of the trenching shovel in a specific way to achieve simultaneous sowing of water, fertilizer and seeds, thereby increasing the germination rate and growth rate of the grass seeds. The rotary tillage component tills the soil before sowing to improve the soil structure and create favorable conditions for the growth of grass seeds. The trenching shovel opens a sowing furrow in the soil, and the soil covering component then covers the sowing furrow with soil to ensure that the grass seeds are covered with an appropriate thickness of soil, which is conducive to the germination and growth of the grass seeds. The windshield effectively blocks wind and sand, protects the grass seeds in the sowing furrow from wind and sand erosion, and increases the success rate of sowing.

[0010] The beneficial effects of the basic scheme are: 1. By adopting the method of mixed sowing of water, fertilizer and seeds, the present invention realizes the synchronous and precise delivery of grass seeds, water and fertilizer. This integrated sowing method not only ensures the uniform distribution of grass seeds in the soil, but also greatly improves the germination rate and survival rate of grass seeds because it carries sufficient water and nutrients. Compared with traditional manual sowing or mechanical dry sowing, the device of the present invention can more accurately control the sowing density and depth, thereby avoiding the problem of uneven or sparse vegetation growth caused by uneven sowing, and laying a solid foundation for the rapid recovery of grassland ecosystems.

[0011] 2. The introduction of the rotary tillage component allows the soil to be fully tilled and loosened before sowing. This step not only improves the air permeability and water retention capacity of the soil, but also helps to break up soil compaction and promote root growth. At the same time, the rotary tillage process can also turn surface weeds and residues into the soil, accelerate their decomposition, provide additional organic matter and nutrients to the soil, further optimize the soil environment, and provide a good soil foundation for the healthy growth of grass seeds.

[0012] 3. The sowing device of the present invention integrates multiple functions such as rotary tillage, furrowing, sowing, covering soil, and wind and sand prevention, realizing one-stop completion of grassland ecological restoration operations. This not only greatly improves the operating efficiency, but also significantly reduces labor costs and time costs. Compared with traditional manual or decentralized mechanical operations, the device of the present invention can cover a wider area faster, reduce repetitive labor and waste of resources, and provide a more efficient and economical solution for grassland ecological restoration work.

[0013] 4. The design of the windshield is another highlight of the present invention. In areas with strong wind and sand, such as grasslands, the windshield can effectively block the wind and sand and protect the grass seeds in the sowing furrow from wind and sand erosion. This design not only improves the survival rate of grass seeds, but also reduces soil erosion and vegetation damage caused by wind and sand, and enhances the environmental adaptability and stability of the device.

[0014] Furthermore, the seed storage assembly includes a seed storage box, the bottom of which is connected to a plurality of "U"-shaped supply pipes, the bottoms of the "U"-shaped supply pipes are connected to air pumps, the ends of the supply pipes away from the seed storage box extend upward and are higher than the seed storage box and are connected to sowing pipes, the sowing pipes extend to the tops of the arms and pass through the corresponding wind shields, and the ends of the sowing pipes extend to the center of the bottoms of the corresponding trenching shovels and are connected to the outside world.

[0015] The beneficial effects of the basic scheme are: 1. By adjusting the output pressure of the air pump and the number of supply pipes, the flow rate and flow of the grass seed liquid can be accurately controlled, thereby achieving precise sowing. This helps to improve the uniformity and survival rate of sowing, and provides a strong guarantee for the rapid recovery of the grassland ecosystem.

[0016] 2. The design of the seed storage component enables the grass seed liquid to be continuously and stably supplied to each trenching shovel without frequent shutdown for feeding or adjustment. This greatly improves the operating efficiency and reduces labor and time costs.

[0017] 3. The design of the seed storage component is highly adaptable and can be adjusted according to different soil conditions and sowing requirements. For example, by adjusting the output pressure of the air pump, it can adapt to soils of different hardness and humidity; by adjusting the number and position of the supply pipes, it can adapt to sowing furrows of different widths and depths.

[0018] 4. The design of the seed storage component ensures full utilization of the grass seed liquid and reduces waste. By accurately controlling the sowing amount and sowing position, it can avoid resource waste and environmental pollution caused by excessive sowing or missed sowing.

[0019] Furthermore, the seed storage assembly also includes a stirring shaft, which passes horizontally through the seed storage box. Both lateral ends of the stirring shaft are fixedly connected to the output shaft of the stirring motor. The stirring motor is fixedly connected to the two side walls of the seed storage box. A plurality of stirring rods are vertically fixedly connected to the outer periphery of the stirring shaft.

[0020] The beneficial effects of the basic scheme are: 1. The stirring shaft is driven by the stirring motor to rotate, driving a number of stirring rods fixed vertically on its periphery to stir the grass seed liquid in the seed storage box. This stirring action can ensure that the grass seeds are evenly distributed in the liquid, preventing the grass seeds from settling at the bottom of the seed storage box due to gravity, resulting in uneven sowing or clogging the sowing tube. Uniform grass seed liquid can ensure that the number of grass seeds output by each sowing tube is consistent, thereby improving the uniformity and survival rate of sowing. This is crucial for the rapid recovery of grassland ecosystems.

[0021] 2. The stirring action of the stirring shaft can also effectively prevent the grass seed liquid from clogging in the supply pipe and the sowing pipe. When impurities or particles in the grass seed liquid gather, the stirring of the stirring rod can disperse them to ensure smooth output. By maintaining the uniformity and fluidity of the grass seed liquid, the design of the stirring shaft helps to reduce the failure rate of the equipment. This can reduce maintenance costs and improve the reliability and stability of the equipment.

[0022] Furthermore, the output pipes of the air pumps are all inclined upward and communicated with the bottom of the supply pipe.

[0023] The beneficial effects of the basic solution are: 1. Since the air pump output pipe is tilted upward, when the air pump is working, the generated gas can smoothly rise along the pipe and enter the bottom of the supply pipe. This design effectively prevents the gas and grass seed liquid from flowing back in the pipe, avoiding blockage or uneven mixing caused by backflow. The inclined pipe design helps the gas form a stable airflow in the pipe, reducing the risk of blockage caused by poor airflow. At the same time, even if the grass seed liquid contains a small amount of impurities or particles, the inclined pipe makes it easier for these impurities or particles to be discharged with the flow of liquid, further reducing the possibility of blockage.

[0024] 2. The upward-tilted air pump output pipe can guide the gas into the supply pipe in a more efficient way. This design helps the gas form a more uniform and stable airflow in the supply pipe, thereby improving the mixing efficiency of the gas and the grass seed liquid. When the gas enters the supply pipe at a higher flow rate, it can produce a strong stirring effect, so that the grass seed liquid is more fully mixed. This mixing effect helps to ensure that the grass seed liquid output by each sowing tube contains the right amount of gas and grass seeds, thereby improving the uniformity and survival rate of sowing.

[0025] Furthermore, a plurality of protection strips are fixedly connected to the tube wall at the end of the sowing tube, and the protection strips extend outward and toward the center of the end of the sowing tube.

[0026] The benefits of the basic solution are: 1. The design of the protection strip can effectively prevent soil from entering the sowing tube during the sowing process and causing blockage. When the trenching shovel is inserted into the soil for sowing, the protection strip can act as a barrier to prevent soil particles from entering the sowing tube. By preventing soil blockage, the sowing tube can remain unobstructed, ensuring that the grass seed liquid can flow out smoothly and be evenly spread in the soil. This helps to improve sowing efficiency and reduce downtime and labor costs caused by blockage.

[0027] 2. The protective strip is usually made of wear-resistant and corrosion-resistant materials to protect the end of the sowing tube from soil wear and corrosion. This helps to extend the service life of the sowing tube and reduce the frequency and cost of replacement. During the sowing process, the end of the sowing tube may collide with hard objects such as stones and tree roots in the soil. The design of the protective strip can reduce the risk of damage to the end of the sowing tube caused by such collisions and ensure the smooth progress of the sowing process.

[0028] 3. The design of the protective strip extending outward and toward the center of the end of the sowing tube can guide the grass seed liquid to flow out of the sowing tube more evenly. This helps to ensure that the grass seeds are more evenly distributed in the soil, improving the uniformity and survival rate of sowing. During the sowing process, water flow may cause erosion of the soil, resulting in soil loss and uneven sowing. The design of the protective strip can reduce the erosion effect of water flow on the soil, protect the soil structure, and ensure the sowing effect.

[0029] Furthermore, the rotary tillage assembly includes rotary tillage arms fixedly connected to both ends of the cross arm, the rotary tillage arms extend obliquely downward and are fixedly connected to a rotary tillage motor, a rotary tillage shaft is provided between the rotary tillage arms on both sides, the output shafts of the rotary tillage motor are horizontally oriented toward the middle and are coaxially fixedly connected to both ends of the rotary tillage shaft, and a number of rotary tillage blades are vertically fixedly connected to the outer periphery of the rotary tillage shaft.

[0030] The beneficial effects of the basic scheme are: 1. The rotary tillage blades rotate at high speed driven by the rotary tillage shaft, which can effectively cut the soil and the root stubble therein, making the soil fine and mixed evenly. This soil crushing effect helps the rooting and germination of crops, and improves soil fertility and water retention capacity. Because the rotary tillage wall extends obliquely downward and is fixedly connected to the cross arm, the rotary tillage assembly can cover a wider farming area. At the same time, the number and arrangement of the rotary tillage blades can also be adjusted as needed to meet different farming needs. The design of the rotary tillage motor output shaft facing horizontally to the middle and fixedly connected to the two ends of the rotary tillage shaft enables the rotary tillage shaft to maintain a stable rotation state, thereby ensuring the consistency and uniformity of the tillage depth. This helps to improve farming efficiency and quality.

[0031] 2. The design of the rotary tillage motor output shaft directly connected to both ends of the rotary tillage shaft reduces energy loss and friction wear during power transmission. This helps to improve power transmission efficiency and reduce maintenance costs. The design of the rotary tillage assembly is relatively simple and easy to disassemble and clean. This helps to keep the equipment clean and sanitary and reduce malfunctions or performance degradation caused by impurity accumulation.

[0032] Furthermore, the middle parts of the rotary tillage blades are bent at right angles, and the bending directions are different.

[0033] The beneficial effects of the basic scheme are: 1. The blades of this design can better adapt to soils of different hardness and types. The blades bent at right angles can cut into the soil more effectively, and the different bending directions help the blades to rotate more flexibly in the soil, reduce resistance, and improve farming efficiency. The curved blades can more effectively break up the soil during farming, making it easier for plant roots to absorb and use. This helps to improve the fertility and air permeability of the soil, providing a better growth environment for crops.

[0034] 2. Since the middle of the blade is bent at a right angle and the bending directions are different, this design can reduce the contact area between the blade and the weeds during tillage, thereby reducing the risk of weed entanglement. The curved blade can better handle obstacles such as stones and tree roots in the soil, reducing the risk of tillage interruption and machine damage caused by blockage.

[0035] 3. The right-angle curved blade can more effectively disperse soil pressure during tillage, reduce the occurrence of soil compaction, thereby protecting soil structure and improving soil fertility and productivity.

[0036] Furthermore, the rotary tillage assembly also includes a protective plate, and one side of the rotary tillage arm is fixedly connected to both ends of the protective plate, and the protective plate extends between the rotary tillage shaft and the trenching shovel.

[0037] The beneficial effects of the basic solution are: 1. The design of the protective plate can effectively prevent weeds, soil and other debris from invading the upper area of ​​the mechanical arm during the tillage process. This helps to protect these key components from damage and extend the service life of the machine.

[0038] 2. The presence of the protective plate can effectively prevent workers from accidentally touching the high-speed rotating rotary tillage shaft or sharp trenching shovel, thereby reducing safety risks during the operation process.

[0039] 3. The protective plate can prevent the soil thrown up by the rotary tillage blade from splashing outside the machine, keeping the cultivated land clean and stable. This helps reduce the silt and weeds around the cultivated land and improve the growth environment of grass seeds.

[0040] Furthermore, the soil covering components include a plurality of cross bars vertically fixedly connected to the ends of the extension arms, both ends of the cross bars are fixedly connected to soil covering arms extending downward, and the ends of the soil covering arms are rotatably connected to soil covering plates.

[0041] The beneficial effects of the basic solution are: 1. The design of the soil covering plate makes the soil covering process more flexible. The soil covering plate can rotate according to the soil conditions and operation requirements to achieve effective soil covering. This design not only improves the soil covering efficiency, but also ensures the uniformity of soil covering. Since the soil covering plate can rotate, it can better adapt to different terrains and soil conditions. Whether it is flat farmland or complex mountainous areas, the soil covering assembly can provide a stable soil covering effect.

[0042] 2. When the soil covering disc rotates, it can cover the soil gently, avoiding excessive compaction of the soil. This helps maintain the air permeability and water retention capacity of the soil, providing a better growth environment for crops. Evenly covered soil helps the uniform distribution and healthy development of the grass sprout root system.

[0043] Furthermore, the concave sides of the soil covering plates rotatably connected to the soil covering arms on the same crossbar are opposite to each other and form an angle with each other toward the corresponding trenching shovel.

[0044] The beneficial effects of the basic scheme are: 1. The design of the opposite concave sides of the soil covering plate enables the soil to be more accurately covered in the gullies formed by the trenching shovel. This design avoids uneven soil coverage or omissions and improves the efficiency and accuracy of soil covering. By accurately controlling the coverage position and range of the soil, the design reduces the waste of soil resources. This helps to reduce production costs and improve grass seed sowing efficiency.

[0045] 2. The covering disc is rotatably connected to the covering arm, and the design of the concave sides facing each other makes the covering process more stable. This helps reduce the shaking and vibration of the machine during operation and improves the stability of the operation. This design avoids direct collision and friction between the covering disc and the soil, reducing the safety risks during the operation. At the same time, the rotating connection of the covering disc also reduces the wear and failure rate of the machine and improves the reliability of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is an axonometric diagram of a grass seed sowing device for grassland ecological restoration in an embodiment of the present invention.

[0047] Figure 2 It is a side cross-sectional schematic diagram of a grass seed sowing device for grassland ecological restoration in an embodiment of the present invention.

[0048] Figure 3 It is a top view of a grass seed sowing device for grassland ecological restoration in an embodiment of the present invention.

[0049] The figure marks in the drawings of the specification include: 1. tractor; 2. mechanical arm; 3. seed storage box; 4. stirring shaft; 5. stirring motor; 6. stirring rod; 7. air pump; 8. supply pipe; 9. sowing pipe; 10. branch arm; 11. extension arm; 12. wind shield; 13. soil covering arm; 14. soil covering plate; 15. protection strip; 16. trenching shovel; 17. protection plate; 18. rotary tillage arm; 19. rotary tillage shaft; 20. rotary tillage blade; 21. cross bar; 22. rotary tillage motor. DETAILED DESCRIPTION

[0050] The following is further described in detail through specific implementation methods:

[0051] Example 1

[0052] Basically as attached Figure 1 and Figure 2 As shown: a grass seed sowing device for grassland ecological restoration, including a tractor 1, characterized in that: a mechanical arm 2 is detachably connected to the rear of the tractor 1, a cross arm is vertically fixedly connected to the middle of the mechanical arm 2, a seed storage component is fixedly connected to the top of the cross arm, the seed storage component is used to store and supply grass seeds, a rotary tillage component is fixedly connected to the bottom of the cross arm, the rotary tillage component is used to rotary tillage and loosen the soil before sowing, the end of the mechanical arm 2 away from the tractor 1 is fixedly connected to a plurality of laterally arranged branch arms 10, the ends of the branch arms 10 are fixedly connected to trenching shovels 16, the tips of the trenching shovels 16 are all facing the front of the tractor 1, the middle parts of the branch arms 10 are fixedly connected to extension arms 11 in the same direction, the ends of the extension arms 11 are fixedly connected to soil covering components, and the tops of the extension arms 11 are fixedly connected to windshields 12.

[0053] The seed storage assembly includes a seed storage box 3, and a plurality of "U"-shaped supply pipes 8 are connected to the bottom of the seed storage box 3. The bottom of the "U"-shaped supply pipes 8 are connected to an air pump 7. The output pipes of the air pump 7 are inclined upward and connected to the bottom of the supply pipe 8. The ends of the supply pipes 8 away from the seed storage box 3 extend upward and are higher than the seed storage box 3 and are connected to a sowing pipe 9. The sowing pipes 9 extend to the top of the branch arm 10 and pass through the corresponding wind shield 12. The ends of the sowing pipes 9 extend to the bottom center of the corresponding trenching shovel 16 and are connected to the outside world. The tube walls at the ends of the sowing pipes 9 are fixedly connected to a plurality of protective strips 15, and the protective strips 15 extend outward and toward the center of the ends of the sowing pipes 9.

[0054] The seed storage assembly also includes a stirring shaft 4, which passes horizontally through the seed storage box 3. Both horizontal ends of the stirring shaft 4 are fixedly connected to the output shaft of the stirring motor 5. The stirring motor 5 is fixedly connected to the two side walls of the seed storage box 3. A plurality of stirring rods 6 are vertically fixedly connected to the outer periphery of the stirring shaft 4.

[0055] The specific implementation process is as follows: in order to reduce the impact of grassland wind and sand on the uniformity of grass seed sowing, on the one hand, a water-fertilizer-seed mixture is used for sowing. The immersion of water and fertilizer can help the grass seeds germinate, and the grass seeds mixed in the water have increased self-weight and are not easily affected by wind and sand; on the other hand, a trenching shovel 16 is used to dig trenches, and grass seeds mixed with water and fertilizer are sprayed under the trenching shovel 16. The trenching shovel 16 and the wind shield 12 can both block the end of the sowing tube 9, thereby minimizing the impact of wind and sand on the uniformity of grass seed sowing.

[0056] First, the grass seeds are soaked in water and fertilizer solution, and after being processed, they are directly stored in the seed storage box 3. The mechanical arm 2 is loaded on the tractor 1, and the grass seed sowing device and the tractor 1 are turned on. The rotary tillage component at the bottom of the mechanical arm 2 first plows the grassland soil to loosen the soil and allow ventilation to facilitate the germination and rooting of the grass seeds, thereby indirectly ensuring the uniformity of grass seed sowing. Then, the water-fertilizer-seed mixture in the seed storage box 3 is stirred by the stirring shaft 4 and the stirring rod 6 driven by the stirring motor 5 to continuously maintain the uniform distribution of grass seeds in the water-fertilizer-seed mixture, which is a guarantee for uniform sowing of grass seeds. The water-fertilizer-seed mixture enters the "U"-shaped supply pipe 8. When the air pump 7 is not turned on, since the rear end of the "U"-shaped supply pipe 8 is higher than the seed storage box 3, according to the principle of communicating vessels, the water-fertilizer-seed mixture will not overflow naturally. When the air pump 7 is turned on and gas is injected into the air pump 7 input pipe that is tilted upward and connected to the bottom of the supply pipe 8, the gas impact mixes the water-fertilizer-seed mixture in the supply pipe 8, so that the water-fertilizer-seed mixture enters the sowing pipe 9 and is supplied to the end. The tilted air pump 7 input pipe can help the water-fertilizer mixture in the supply pipe 8 to pass through the supply pipe 8 more smoothly and smoothly without causing backflow of gas or water-fertilizer-seed mixture.

[0057] At the same time, the trenching shovel 16 at the end of the arm 10 opens a shallow trench on the loosened grassland soil, and the sowing tube 9 extends through the windshield 12 to the center of the bottom of the trenching shovel 16, and finally the water-fertilizer-seed mixture is sprayed out at the bottom of the trenching shovel 16. The protective strip 15 at the end of the sowing tube 9 can not only prevent soil and sand from entering the sowing tube 9 to cause blockage, but also disperse the sprayed water-fertilizer-seed mixture to make the grass seeds more evenly sown, with a wider distribution area in the trench, and promote the overall sowing effect of the grass seeds. Under the shielding of the trenching shovel 16 and the windshield 12, even if the grassland is blown by sand, it is difficult to affect the uniformity of the grass seeds sprayed with the water-fertilizer-seed mixture.

[0058] Example 2

[0059] The difference from the above embodiment is that, as shown in the attached Figure 2 and Figure 3As shown: the rotary tillage assembly includes a rotary tillage arm 18 fixedly connected to both ends of the horizontal arm, the rotary tillage arms 18 extend obliquely downward and are fixedly connected to a rotary tillage motor 22, a rotary tillage shaft 19 is provided between the rotary tillage arms 18 on both sides, the output shaft of the rotary tillage motor 22 is horizontally oriented to the middle and coaxially fixedly connected to both ends of the rotary tillage shaft 19, a plurality of rotary tillage blades 20 are vertically fixedly connected to the outer periphery of the rotary tillage shaft 19, the middle parts of the rotary tillage blades 20 are bent at right angles, and the bending directions are different from each other. The rotary tillage assembly also includes a protective plate 17, one side of the rotary tillage arm 18 is fixedly connected to both ends of the protective plate 17, and the protective plate 17 extends between the rotary tillage shaft 19 and the trenching shovel 16.

[0060] The specific implementation process is as follows: when plowing the grassland soil, the rotary tillage shaft 19 is driven to rotate by the rotary tillage motor 22, and the curved rotary tillage blade 20 on the rotary tillage shaft 19 continuously penetrates into the soil to turn up soil blocks and cut off grass roots and other debris in the soil, so as to improve the plowing efficiency and achieve better plowing effect. The protective plate 17 is blocked between the rotary tillage shaft 19 and the furrowing shovel 16 to prevent the splashing of plowed soil from affecting the stability and accuracy of subsequent sowing.

[0061] Example 3

[0062] The difference from the above embodiment is that, as shown in the attached Figure 1 , Figure 2 As shown in the figure, the soil covering components include a plurality of cross bars 21 vertically fixedly connected to the ends of the extension arms 11, and the two ends of the cross bars 21 are fixedly connected to the soil covering arms 13 extending downward, and the ends of the soil covering arms 13 are rotatably connected to the soil covering plates 14. The concave sides of the soil covering plates 14 rotatably connected to the soil covering arms 13 on the same cross bar 21 are opposite and mutually angled toward the corresponding trenching blades 16.

[0063] The specific implementation process is as follows: after spraying the water-fertilizer-seed mixture, the soil covering plate 14 rolls over the side of the ditch and pushes the soil scooped up by the trenching shovel 16 back into the ditch to prevent the grass seeds from being blown away by wind and sand, causing uneven sowing. At the same time, the uncompacted covering soil can also improve the air permeability of the grass seeds, promote the germination probability and growth efficiency, and accelerate the recovery of the grassland ecology.

[0064] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0065] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A grass seed sowing device for grassland ecological restoration, comprising a tractor (1), characterized in that: The rear of the tractor (1) is detachably connected to a mechanical arm (2), a cross arm is vertically fixedly connected to the middle of the mechanical arm (2), a seed storage assembly is fixedly connected to the top of the cross arm, the seed storage assembly is used to store and supply grass seeds, a rotary tillage assembly is fixedly connected to the bottom of the cross arm, the rotary tillage assembly is used to rotary tillage and loosen the soil before sowing, a plurality of sub-arms (10) arranged laterally are fixedly connected to the end of the mechanical arm (2) away from the tractor (1), a trenching shovel (16) is fixedly connected to the end of each sub-arm (10), the shovel tip of each trenching shovel (16) faces the front of the tractor (1), an extension arm (11) is fixedly connected to the middle of each sub-arm (10) in the same direction, a soil covering assembly is fixedly connected to the end of each extension arm (11), and a windshield (12) is fixedly connected to the top of each extension arm (11).

2. The grass seed sowing device for grassland ecological restoration according to claim 1 is characterized in that: The seed storage assembly comprises a seed storage box (3), the bottom of the seed storage box (3) is connected to a plurality of "U"-shaped supply pipes (8), the bottoms of the "U"-shaped supply pipes (8) are all connected to an air pump (7), one end of the supply pipe (8) away from the seed storage box (3) extends upward and is higher than the seed storage box (3) and is connected to a sowing pipe (9), the sowing pipe (9) extends to the top of the branch arm (10) and passes through the corresponding windshield (12), and the end of the sowing pipe (9) extends to the center of the bottom of the corresponding trenching shovel (16) and is connected to the outside.

3. The grass seed sowing device for grassland ecological restoration according to claim 2 is characterized in that: The seed storage assembly also includes a stirring shaft (4), which passes through the seed storage box (3) horizontally, and the two horizontal ends of the stirring shaft (4) are fixedly connected to the output shaft of the stirring motor (5), and the stirring motor (5) is fixedly connected to the two side walls of the seed storage box (3), and a plurality of stirring rods (6) are vertically fixedly connected to the outer periphery of the stirring shaft (4).

4. The grass seed sowing device for grassland ecological restoration according to claim 3 is characterized in that: The output pipes of the air pump (7) are all inclined upward and communicated with the bottom of the supply pipe (8).

5. The grass seed sowing device for grassland ecological restoration according to claim 4 is characterized in that: A plurality of protection strips (15) are fixedly connected to the tube wall at the end of the sowing tube (9), and the protection strips (15) extend outwards and toward the center of the end of the sowing tube (9).

6. The grass seed sowing device for grassland ecological restoration according to claim 5 is characterized in that: The rotary tillage assembly comprises rotary tillage arms (18) fixedly connected to both ends of a horizontal arm, the rotary tillage arms (18) both extend obliquely downward and are fixedly connected to a rotary tillage motor (22), a rotary tillage shaft (19) is provided between the rotary tillage arms (18) on both sides, the output shaft of the rotary tillage motor (22) both face horizontally toward the middle and are coaxially fixedly connected to both ends of the rotary tillage shaft (19), and a plurality of rotary tillage blades (20) are vertically fixedly connected to the outer periphery of the rotary tillage shaft (19).

7. The grass seed sowing device for grassland ecological restoration according to claim 6 is characterized in that: The middle parts of the rotary tillage blades (20) are all bent at right angles, and the bending directions are different from each other.

8. The grass seed sowing device for grassland ecological restoration according to claim 7, characterized in that: The rotary tillage assembly also includes a protective plate (17), one side of the rotary tillage arm (18) is fixedly connected to both ends of the protective plate (17), and the protective plate (17) extends between the rotary tillage shaft (19) and the furrowing shovel (16).

9. The grass seed sowing device for grassland ecological restoration according to claim 8, characterized in that: The soil covering components include a plurality of cross bars (21) vertically fixedly connected to the ends of the extension arms (11), both ends of the cross bars (21) are fixedly connected to soil covering arms (13) extending downward, and the ends of the soil covering arms (13) are rotatably connected to soil covering plates (14).

10. The grass seed sowing device for grassland ecological restoration according to claim 9, characterized in that: The concave sides of the soil covering plates (14) rotatably connected to the soil covering arms (13) on the same crossbar (21) are opposite to each other and are angled toward the corresponding trenching shovel (16).

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