A grass seed sowing device for forest and grass ecological restoration

Abstract

The present invention discloses a grass seed sowing device for forest and grass ecological restoration, comprising a vehicle body, a storage box and a material distribution box are arranged above the vehicle body, the storage box and the material distribution box are connected to each other, a cylinder is arranged below the vehicle body, a support plate is arranged below the cylinder, a sowing pipe is arranged on the support plate, a plug-in sleeve rod is arranged below the support plate, the sowing pipe is plugged inside the plug-in sleeve rod, a sowing tip for inserting into the soil is arranged below the sowing pipe, lifting plates for supporting on the soil surface are arranged on both sides of the sowing pipe, a material discharge assembly for limiting the number of materials discharged is arranged inside the sowing pipe, and a pressing assembly for moving the soil to bury it above the grass seeds and compacting it is arranged below the sowing pipe. In the present invention, it can be ensured that each sowing pipe can ensure the same insertion depth into the soil on different concave and convex surfaces of the land, and ensure that each grass seed is sown at the optimal depth inside the soil.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of spreading devices, and specifically to a grass seed spreading device for forest and grass ecological restoration. Background Art

[0002] Ecological restoration is a comprehensive method of repairing polluted environments that is guided by ecological principles, based on biological restoration, and combines various physical restoration, chemical restoration, and engineering technical measures to achieve the best results and lowest costs through optimized combination.

[0003] The existing method of forest and grass ecological restoration is to sow grass seeds. The existing sowing device usually inserts a row of sowing tubes into the soil at the same time, and then sows the grass seeds in the soil to achieve sowing. There is an optimal sowing depth for sowing grass seeds in the soil. It needs to be sown at a certain depth in the soil to ensure the highest survival rate and the best growth. The existing sowing device can only ensure a certain overall descent height, but the land of the forest is not all flat (the terrain where the forest is located may be mountains, hills or other naturally undulating terrain, and the ground of these terrains is inherently uneven; the roots of trees will expand during growth, causing displacement of the soil, causing bulges or depressions on the soil surface; the dead branches and leaves of trees will mix with the soil during decomposition, causing inequality on the soil surface. A series of factors will cause the soil in the forest to become uneven), so there will be pits and small slopes on the land, and When the sowing vehicle moves to these pits and small earth slopes in the forest, the vehicle body itself will also tilt. In this way, a row of sowing tubes descend at the same time, but the depths of insertion into the uneven land are different. It may even happen that the land where the first sowing tube is inserted is flat for planting, but the second sowing tube is above the pit. When the first sowing tube is planted, the second sowing tube does not even touch the soil. In this way, the seeds sown by the second sowing tube remain on the surface of the land. Not only is the survival rate of the seeds low, but they are also easily eaten by birds and animals. Therefore, a row of sowing tubes descend to the same height, but it cannot be guaranteed that the depth of insertion of each sowing tube into the soil is the optimal sowing depth, which will affect the growth survival rate of the grass seeds. At the same time, the existing sowing tubes cannot automatically bury the grass seeds with the soil after sowing the grass seeds. In this way, the grass seeds are directly exposed and easily eaten by birds and animals, which will also affect the survival rate of the grass seeds. Summary of the invention

[0004] The technical solution of the present invention aims at the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technologies. It mainly provides a grass seed sowing device for forest and grass ecological restoration, which is used to solve the problem proposed in the above background technology that the existing row of sowing tubes can be raised and lowered simultaneously, but can only ensure that the overall lifting height is consistent. However, due to the uneven land of the forest and the tilt of the vehicle body when it moves on the rocks in the forest, it is impossible to ensure that each sowing tube is inserted into the soil at the same depth. As a result, some sowing tubes are inserted into the soil to the optimal planting depth, while some sowing tubes are inserted into the soil at a shallow depth or even cannot be inserted into the soil. This will affect the growth survival rate of the grass seeds. At the same time, the sowing holes cannot be buried after the grass seeds are sown, and the grass seeds will be eaten by birds and animals.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A grass seed sowing device for forest and grass ecological restoration comprises a vehicle body, a storage box and a distribution box are arranged above the vehicle body, the storage box and the distribution box are connected to each other, a cylinder is arranged below the vehicle body, a support plate is arranged below the cylinder, a row of sowing tubes are arranged on the support plate, and each of the sowing tubes is inserted into the uneven land to the same depth, a plug-in sleeve rod is arranged below the support plate, the sowing tube is plugged inside the plug-in sleeve rod, a sowing tip for inserting into the soil is arranged below the sowing tube, lifting plates for supporting on the soil surface are arranged on both sides of the sowing tube, a feeding assembly for limiting the amount of feeding is arranged inside the sowing tube, and a pressing assembly for moving the soil to bury it above the grass seeds and compacting it is arranged below the sowing tube.

[0007] Preferably, lifting plates are slidably connected to both sides of the sowing tube, rotating rods are rotatably connected to both sides of the sowing tube, the lifting plates are threadedly sleeved on the rotating rods, and a spring is sleeved on the rotating rods.

[0008] Preferably, the sowing tip is rotatably connected below the sowing tube, and a linkage rod is provided between the lifting plate and the sowing tip.

[0009] Preferably, the downward pressure assembly includes an upper limiting plate, a lower limiting plate and a guide plate, the upper limiting plate and the lower limiting plate are fixedly installed inside the sowing tube, the guide plate is arranged between the upper limiting plate and the lower limiting plate, and between the guide plate and the upper limiting plate and the lower limiting plate, a hole is opened at different positions on the upper limiting plate and the lower limiting plate, and a plurality of holes are opened on the guide plate in a circular array.

[0010] Preferably, a spur gear is fixedly mounted on the rotating rod, a circle of tooth blocks is arranged on the guide plate, and the spur gear is meshed with the tooth blocks.

[0011] Preferably, a threaded rod is rotatably connected above the sowing tube, a bevel gear set is provided between the threaded rod and the rotating rod, a plug-in rod is threadedly sleeved on one end of the threaded rod, the plug-in rod is slidably connected to one side of the sowing tube, and the plug-in rod is plugged into one side of the plug-in sleeve rod.

[0012] Preferably, a threaded sleeve is sleeved on the outer side of the sowing tube, and the threaded sleeve does not contact the sowing tube, a rotating block is threadedly sleeved on the outer side of the threaded sleeve, a telescopic sleeve is fixedly installed under the vehicle body, the lower end of the telescopic sleeve passes through a support plate and is slidably connected to the rotating block, and the telescopic sleeve is fixedly connected to the threaded sleeve.

[0013] Preferably, a fixed block is fixedly mounted on the sowing tube, a guide block is arranged on the fixed block, guide grooves are respectively opened on the upper side of one side and the lower side of the other side of the rotating block, and the guide blocks are inserted into the guide grooves.

[0014] Preferably, the pressing assembly comprises a pressing block, a connecting rod is slidably connected below the rotating block, the pressing block is fixedly mounted on the lower end of the connecting rod, and a soil-moving block is arranged inside the pressing block.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the support plate is driven down by the cylinder, and the support plate drives multiple seeding tubes to be simultaneously lowered and inserted into the soil. The lifting plates on both sides of each seeding tube are supported on the soil surface, and the lifting plates record the depth of the seeding tube. When the seeding tube is lowered to a suitable depth, the lifting plates open the seeding tip through the transmission member to sow the grass seeds in the soil. At the same time, the lifting plates pull the plug rod out of the plug sleeve rod through the transmission member, and at this time, the lifting plates also press against the top of the sliding grooves on both sides of the seeding tube. At this time, when the support plate continues to descend, the optimal depth of insertion into the soil is The sowing tube will not continue to descend, but will be inserted into the plug-in sleeve rod. The sowing tube that has not been inserted into the optimal depth of the soil will continue to descend with the support plate until all the sowing tubes are inserted into the optimal depth of the soil. At this time, all the sowing tube plug-in rods are pulled out from the plug-in sleeve rod. At this time, the cylinder starts to drive the support plate to rise, and the sowing tube and the lifting plate will be reset in turn, so as to ensure that a row of sowing tubes descend synchronously. However, each sowing tube can be inserted into the soil at the same depth on different uneven ground or when the vehicle body is tilted, so as to ensure that each grass seed is sown at the optimal depth in the soil. Depth, while a row of seeding tubes of the existing sowing device descend synchronously. Due to the consistent lifting height, although the insertion depth of each seeding tube into the soil can be guaranteed to be consistent on flat ground, the forest ground is uneven, and the vehicle body will also tilt during driving. In these cases, the lifting height of a row of seeding tubes remains consistent, which will cause each seeding tube to be inserted into the soil at different depths. Some seeding tubes are even above the pit and are not inserted into the soil before sowing. The present application can ensure that each seeding tube will no longer continue to descend after being inserted into the soil to a certain depth, and the seeding tubes that have not been inserted into the soil to a certain depth will continue to descend until each seeding tube is inserted into the soil to a consistent depth. Then they will stop descending and rise, so that each grass seed can be ensured to be inserted into the optimal depth inside the soil, thereby improving the survival rate of the grass seeds. At the same time, compared with the existing application documents, the depth adjustment in the present application is fully automatic. Although the existing documents can change the depth, they need to be manually assisted. If the uneven change trend of the land fluctuates greatly, it is difficult for humans to handle it in time. For this reason, the automation of the present application performs depth adjustment according to the land conditions, which improves the accuracy of sowing while ensuring efficiency.

[0016] When the sowing tube descends, the threaded sleeve rod will not descend with it, so the lower pressure block and the soil-moving block will not descend with it at the beginning. When the sowing tube descends, the sowing tip below passes through the soil-moving block and opens the soil-moving block. When the upper guide block is inserted into the guide groove opened above the rotating block, the rotating block rotates a certain angle along the threaded sleeve rod, and the rotating block drives the lower pressure block to rise one end distance. When the guide block is completely inserted into the guide groove, the sowing tube drives the rotating block to descend. At this time, the lower pressure block and the soil-moving block will follow the sowing tip to descend and be inserted into the soil. When the sowing tube sows grass seeds in the soil, the sowing tube rises. At this time, the threaded sleeve rod will not rise with it, and the sowing tip is retracted from the middle of the soil-moving block. At this time, the soil-moving block will also retract. The soil-moving block will move the soil inward, and when the lower guide block is inserted into the guide groove below the rotating block , the guide block will drive the rotating block to reverse a certain angle. At this time, the rotating block first drives the pressing block to descend a certain distance, so that the pressing block can press down and compact the soil pushed back by the soil-moving block, and then the guide block drives the rotating block to rise synchronously, and the pressing block and the soil-moving block are raised to extract the soil. In this way, after the grass seeds are sown inside the soil, the pressing block and the soil-moving block will cover the soil above the grass seeds and compact it, preventing the grass seeds from being sown inside the soil without being covered and eaten by birds and animals (the above-mentioned first covering and backfilling process to retract the insertion tube is carried out simultaneously, and no additional operation steps are required); and the present application realizes automation from the synchronous descent of a row of sowing tubes, to the automatic identification of the insertion depth of each sowing tube, to quantitative sowing, to the covering and burying of the sown grass seeds and pressing down, which is convenient for the staff to operate and use.

[0017] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention;

[0019] Figure 2 It is a top view of the three-dimensional structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the front three-dimensional structure of the sowing tube of the present invention;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the left side of the sowing tube of the present invention;

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the right side of the sowing tube of the present invention;

[0023] Figure 6 This is a schematic diagram of the three-dimensional structure of the sowing tube of the present invention from top view;

[0024] Figure 7 This is a schematic diagram of the cross-sectional structure of the sowing tube of the present invention;

[0025] Figure 8 This is a schematic diagram of the explosion structure of the blanking assembly of the present invention;

[0026] The markings in the figure are:

[0027] 1. Car body; 2. Storage box; 3. Material distribution box; 4. Seeding tube; 5. Support plate; 6. Cylinder; 7. Plug-in sleeve rod; 8. Seeding tip; 9. Lifting plate; 10. Rotating rod; 11. Linkage rod; 12. Spring; 13. Flat gear; 14. Lower limiting plate; 15. Upper limiting plate; 16. Guide plate; 17. Tooth block; 18. Threaded rod; 19. Bevel gear set; 20. Plug-in rod; 21. Lower pressure block; 22. Soil-moving block; 23. Connecting rod; 24. Rotating block; 25. Telescopic sleeve rod; 26. Threaded sleeve rod; 27. Guide groove; 28. Fixed block; 29. ​​Guide block. DETAILED DESCRIPTION

[0028] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0029] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0031] Please refer to the attached Figure 1-Figure 8A grass seed sowing device for forest and grass ecological restoration comprises a vehicle body 1, a storage box 2 and a distribution box 3 are arranged above the vehicle body 1, the storage box 2 and the distribution box 3 are connected to each other, a cylinder 6 is arranged below the vehicle body 1, a support plate 5 is arranged below the cylinder 6, a row of sowing tubes 4 are arranged on the support plate 5, and each sowing tube 4 is inserted into the uneven land to the same depth, a plug-in sleeve rod 7 is arranged below the support plate 5, the sowing tube 4 is plugged into the plug-in sleeve rod 7, a sowing tip 8 for inserting into the soil is arranged below the sowing tube 4, lifting plates 9 for supporting on the soil surface are arranged on both sides of the sowing tube 4, a feeding assembly for limiting the amount of feeding is arranged inside the sowing tube 4, and a pressing assembly for moving the soil to bury it above the grass seeds and compacting it is arranged below the sowing tube 4.

[0032] The specific operation process of the present invention is as follows: the vehicle body 1 moves on the land, the storage box 2 stores grass seeds, and the seeds are timely added to the distribution box 3 through the connecting pipe. The distribution box 3 distributes the grass seeds into multiple sowing tubes 4. When sowing, the cylinder 6 is started, and the cylinder 6 drives the support plate 5 to descend, and the support plate 5 drives the multiple sowing tubes 4 to descend. The sowing tube 4 descends and is inserted into the soil through the sowing tip 8. The lifting plate 9 is supported on the land surface. After the sowing tip 8 is inserted into the soil to a certain depth, the lifting plate 9 rises to the marked height. At this time, the sowing tip 8 is at At the optimal sowing depth of grass seeds, the lifting plate 9 drives the feeding assembly through the transmission part to transport a certain amount of grass seeds to the sowing tip 8 during the rising process, and the lifting plate 9 opens the sowing tip 8 to sow the grass seeds into the soil, and the sowing tube 4 that has been sown will not continue to descend with the support plate 5, while the sowing tube 4 that has not been sown will continue to descend until all the sowing tubes 4 have been sown, and then the support plate 5 drives multiple sowing tubes 4 to rise. At this time, the pressing assembly will push the soil on the side to the top of the grass seeds and compact it, and then rise and reset with the sowing tube 4.

[0033] Please refer to Figure 3-Figure 7 , lifting plates 9 are slidably connected to both sides of the sowing tube 4, and rotating rods 10 are rotatably connected to both sides of the sowing tube 4. The lifting plates 9 are threadedly sleeved on the rotating rods 10, and a spring 12 is sleeved on the rotating rods 10. The sowing tip 8 is rotatably connected to the bottom of the sowing tube 4, and a linkage rod 11 is arranged between the lifting plates 9 and the sowing tip 8.

[0034] A thread is provided on the rotating rod 10, and a threaded hole matched with the rotating rod 10 is provided on the lifting plate 9. When the lifting plate 9 is lifted or lowered, the rotating rod 10 is driven to rotate. When the lifting plate 9 rises, the spring 12 is compressed, and the lifting plate 9 rises and pulls the two sowing tips 8 outward through the linkage rod 11, separating the tips of the two sowing tips 8, so that the internal grass seeds can be discharged from the opening for sowing.

[0035] Please refer to Figure 7 and Figure 8The pressing assembly includes an upper limiting plate 14, a lower limiting plate 15 and a guide plate 16. The upper limiting plate 14 and the lower limiting plate 15 are fixedly installed inside the sowing tube 4. The guide plate 16 is arranged between the upper limiting plate 14 and the lower limiting plate 15, and between the guide plate 16 and the upper limiting plate 14 and the lower limiting plate 15. A hole is opened at different positions on the upper limiting plate 14 and the lower limiting plate 15. A plurality of holes are opened on the guide plate 16 in a circular array. A spur gear 13 is fixedly installed on the rotating rod 10. A circle of tooth blocks 17 are arranged on the guide plate 16. The spur gear 13 is meshed with the tooth blocks 17.

[0036] When the rotating rod 10 rotates, it drives the flat gear 13 to rotate. The flat gear 13 rotates through the tooth block 17 to drive the guide plate 16 to rotate. When each hole on the guide plate 16 rotates to below the hole opened in the upper limiting plate 14, the grass seeds will enter the corresponding holes on the guide plate 16 through the holes above the upper limiting plate 14, and then rotate to above the holes of the lower limiting plate 15 through the guide plate 16, pass through the holes above the lower limiting plate 15 and fall to the sowing tip 8 below the sowing tube 4, waiting for sowing, so that the number of sown grass seeds can be more uniform.

[0037] Please refer to Figure 7 A threaded rod 18 is rotatably connected above the sowing tube 4, a bevel gear set 19 is provided between the threaded rod 18 and the rotating rod 10, a plug-in rod 20 is threadedly sleeved at one end of the threaded rod 18, the plug-in rod 20 is slidably connected to one side of the sowing tube 4, and the plug-in rod 20 is plugged into one side of the plug sleeve rod 7.

[0038] The rotating rod 10 rotates and drives the threaded rod 18 to rotate through the bevel gear set 19. A threaded hole adapted to the threaded rod 18 is provided inside the plug-in rod 20. The rotation of the threaded rod 18 drives the plug-in rod 20 to move inward, and the plug-in rod 20 is pulled out from the inside of the plug-in sleeve rod 7. At this time, the sowing tube 4 and the plug-in sleeve rod 7 are unlocked, and the support plate 5 continues to descend. The sowing tube 4 will be inserted into the inside of the plug-in sleeve rod 7 and will not continue to descend.

[0039] Please refer to Figure 3-Figure 6 A threaded sleeve rod 26 is sleeved on the outside of the sowing tube 4, and the threaded sleeve rod 26 does not contact the sowing tube 4. A rotating block 24 is threadedly sleeved on the outside of the threaded sleeve rod 26. A telescopic sleeve rod 25 is fixedly installed under the vehicle body 1. The lower end of the telescopic sleeve rod 25 passes through the support plate 5 and is slidably connected to the rotating block 24, and the telescopic sleeve rod 25 is fixedly connected to the threaded sleeve rod 26. A fixed block 28 is fixedly installed on the sowing tube 4, and a guide block 29 is arranged on the fixed block 28. Guide grooves 27 are respectively opened on one side and the other side of the rotating block 24. The guide block 29 is inserted into the guide groove 27. The pressing assembly includes a pressing block 21. A connecting rod 23 is slidably connected below the rotating block 24. The pressing block 21 is fixedly installed at the lower end of the connecting rod 23, and a soil-moving block 22 is arranged inside the pressing block 21.

[0040] There is no direct connection between the threaded sleeve 26 and the sowing tube 4, so the threaded sleeve 26 will not be driven to move up and down when the sowing tube 4 rises and falls. When the sowing tube 4 rises and falls to the point where the guide block 29 contacts the guide groove 27, the sowing tube 4 continues to rise, and the guide block 29 cooperates with the guide groove 27 to drive the rotating block 24 to rotate a certain angle. A threaded hole that matches the threaded sleeve 26 is provided inside the rotating block 24. When the rotating block 24 rotates, it will first rotate and fall a certain distance. When the guide block 29 is fully inserted into the guide groove 27, the guide block 29 drives the rotating block 24 to rise synchronously. At this time, the pressing assembly will also rise, and the telescopic sleeve 25 will begin to contract. When the sowing tube 4 starts to descend and drives the sowing tip 8 to descend, it will first pass through the pressing block 21, push the soil-moving block 22 in the middle of the pressing block 21 outward, and then drive the pressing block 21 and the soil-moving block 22 to descend and insert into the soil. The grass seeds are sown inside. When the sowing tube 4 rises, the sowing tip 8 is pulled out from the middle of the soil-moving block 22. The soil-moving block 22 is made of flexible material and is not restricted by the sowing tip 8. The soil-moving block 22 begins to rebound and shrink, which will move the soil around the seeds inward to above the seeds. Then the movement trajectory of the pressing block 21 and the soil-moving block 22 is to first drop a certain distance and then rise with the sowing tube 4. In this way, the soil covering the seeds is pressed down and then driven by the sowing tube 4 to be pulled out of the soil. The friction between the telescopic sleeve rods 25 is large, and the telescopic movement will not be performed due to the gravity of the pressing component itself.

[0041] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A grass seed sowing device for forest and grass ecological restoration, comprising a vehicle body (1), a storage box (2) and a material distribution box (3) being arranged above the vehicle body (1), the storage box (2) and the material distribution box (3) being connected to each other, characterized in that: A cylinder (6) is arranged below the vehicle body (1), a support plate (5) is arranged below the cylinder (6), a row of seeding tubes (4) are arranged on the support plate (5), and each seeding tube (4) is inserted into the uneven soil to the same depth, a plug-in sleeve rod (7) is arranged below the support plate (5), the seeding tube (4) is plugged into the plug-in sleeve rod (7), a seeding tip (8) for inserting into the soil is arranged below the seeding tube (4), lifting plates (9) for supporting on the soil surface are arranged on both sides of the seeding tube (4), a feeding assembly for limiting the amount of feeding is arranged inside the seeding tube (4), and a pressing assembly for moving the soil to bury it above the grass seeds and compacting it is arranged below the seeding tube (4). The sowing tube (4) is rotatably connected to a threaded rod (18) above, a bevel gear set (19) is provided between the threaded rod (18) and the rotating rod (10), one end of the threaded rod (18) is threadedly sleeved with a plug rod (20), the plug rod (20) is slidably connected to one side of the sowing tube (4), the plug rod (20) is inserted into one side of the plug sleeve rod (7), the outer side of the sowing tube (4) is sleeved with a threaded sleeve rod (26), and the threaded sleeve rod (26) does not contact the sowing tube (4), the outer side of the threaded sleeve rod (26) is threadedly sleeved with a rotating block (24), and a telescopic sleeve rod (25) is fixedly installed below the vehicle body (1), and the lower end of the telescopic sleeve rod (25) passes through the support plate (5) and the rotating block (24) ) is slidably connected, and the telescopic sleeve rod (25) is fixedly connected to the threaded sleeve rod (26); a fixed block (28) is fixedly installed on the sowing tube (4); a guide block (29) is provided on the fixed block (28); a guide groove (27) is respectively provided on the upper side of one side and the lower side of the other side of the rotating block (24); the guide block (29) is inserted into the guide groove (27); the pressing assembly comprises a pressing block (21); a connecting rod (23) is slidably connected to the lower side of the rotating block (24); the pressing block (21) is fixedly installed on the lower end of the connecting rod (23); a soil-moving block (22) is provided on the inner side of the pressing block (21); a threaded rod (18) is rotatably connected to the top of the sowing tube (4); the threaded rod ( A bevel gear set (19) is provided between the threaded rod (18) and the rotating rod (10); a plug-in rod (20) is threadedly sleeved at one end of the threaded rod (18); the plug-in rod (20) is slidably connected to one side of the sowing tube (4); the plug-in rod (20) is inserted into one side of the plug-in sleeve rod (7); a threaded sleeve rod (26) is sleeved on the outer side of the sowing tube (4); the threaded sleeve rod (26) does not contact the sowing tube (4); a rotating block (24) is threadedly sleeved on the outer side of the threaded sleeve rod (26); a telescopic sleeve rod (25) is fixedly installed below the vehicle body (1); the lower end of the telescopic sleeve rod (25) passes through the support plate (5) and is slidably connected to the rotating block (24); and the telescopic sleeve rod (25) is fixedly connected to the threaded sleeve rod (26).

2. The grass seed sowing device for forest and grass ecological restoration according to claim 1 is characterized by: Lifting plates (9) are slidably connected to both sides of the sowing tube (4), and rotating rods (10) are rotatably connected to both sides of the sowing tube (4). The lifting plates (9) are threadedly sleeved on the rotating rods (10), and a spring (12) is sleeved on the rotating rods (10).

3. The grass seed sowing device for forest and grass ecological restoration according to claim 1 is characterized by: The sowing tip (8) is rotatably connected to the bottom of the sowing tube (4), and a linkage rod (11) is provided between the lifting plate (9) and the sowing tip (8).

4. The grass seed sowing device for forest and grass ecological restoration according to claim 2 is characterized by: The pressing assembly comprises an upper limiting plate (14), a lower limiting plate (15) and a guide plate (16); the upper limiting plate (14) and the lower limiting plate (15) are fixedly mounted inside the sowing tube (4); the guide plate (16) is arranged between the upper limiting plate (14) and the lower limiting plate (15), and between the guide plate (16) and the upper limiting plate (14) and the lower limiting plate (15); a hole is provided at different positions on the upper limiting plate (14) and the lower limiting plate (15); and a plurality of holes are provided on the guide plate (16) in a circular array.

5. The grass seed sowing device for forest and grass ecological restoration according to claim 4 is characterized by: A spur gear (13) is fixedly mounted on the rotating rod (10), a circle of tooth blocks (17) is provided on the guide plate (16), and the spur gear (13) is meshed with the tooth blocks (17).

6. The grass seed sowing device for forest and grass ecological restoration according to claim 1 is characterized by: A fixed block (28) is fixedly mounted on the sowing tube (4), a guide block (29) is arranged on the fixed block (28), a guide groove (27) is respectively provided on the upper side of one side and the lower side of the other side of the rotating block (24), and the guide block (29) is inserted into the guide groove (27).

7. The grass seed sowing device for forest and grass ecological restoration according to claim 1 is characterized by: The pressing assembly comprises a pressing block (21), a connecting rod (23) is slidably connected below the rotating block (24), the pressing block (21) is fixedly mounted on the lower end of the connecting rod (23), and a soil-moving block (22) is arranged inside the pressing block (21).

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