Device for quickly reseeding seedlings
By designing a fast -moving seedling device for the hilly area, the problem of high employment costs, low survival and neatness in traditional methods, the effect of high -efficiency and economic grassland repair effects, improved the grass production of grasslands, and the grass production of grassland production Quantity and pastoral quality.
Patent Information
- Application Number
- CN202421262132.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-06-04
AI Technical Summary
In hilly areas, the traditional seedling re-sowing method has problems such as high labor costs, low survival rate, poor neatness and difficulty in adapting to undulating terrain, resulting in poor grass restoration effect.
A device that designed a fast -moving seedlings, which includes the frame, battery, driving motor, seat, solid wheel, chain transmission mechanism, and plug -in sliding cone. Auto sowing and insertion.
This device can significantly reduce the cost of employment, improve the survival rate and neatness of the seedlings, and apply to grassland repair in the hill area, improve the grass production and pastoral quality of the grass, and enhance the efficiency of soil resources.
Smart Images
Figure CN222396152U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of seedling reseeding, in particular to a device for quickly reseeding seedlings. Background Art
[0002] Grassland accounts for about 40% of China's total land area and is the most widely distributed terrestrial ecosystem. Due to unreasonable utilization and lack of meticulous management, more than 70% of grasslands are facing varying degrees of degradation. The vegetation coverage rate of degraded grasslands is low, especially the reduction of high-quality leguminous forage has led to the deterioration of forage quality year by year, the decline in productivity, and the low soil fixation capacity, which has caused a series of ecological and environmental problems and brought great impacts on people's production and life. There are many ways to repair degraded grasslands, among which reseeding is one of the means with the least damage to the original grassland. Compared with ridge opening and seed broadcasting, seedling reseeding is a means with high economic benefits and more significant results. Seedling reseeding takes advantage of the mutualistic symbiosis of vegetation, improves community structure, increases the proportion of high-quality forage and reduces toxic and harmful plants, improves vegetation coverage, and increases grass production. Therefore, according to the characteristics of different regions, reasonable seedling reseeding is an important method for the restoration of degraded grasslands. However, traditional seedling reseeding mainly relies on manual work, which often leads to many problems such as high labor costs, low survival rate of seedlings after reseeding, and poor uniformity. Existing machinery is difficult to adapt to large-scale operations in hilly areas with large undulations. To address the above problems, we have designed a device that can quickly reseed seedlings to ensure that grassland seedling reseeding can be carried out smoothly in the southwestern hilly areas. It aims to reduce labor costs while improving work efficiency, thereby increasing grass production, improving forage quality, and improving soil resource utilization efficiency. Utility Model Content
[0003] The purpose of the utility model is to provide a device for quickly reseeding seedlings to solve the problems raised in the above background technology that seedling sowing in hilly areas is difficult, reseeding time and financial costs are high, the survival rate of seedlings after reseeding is low, the uniformity is poor, and the grassland improvement effect is not good.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for quickly reseeding seedlings, comprising a frame, a battery is fixedly installed at one end of the frame, and a driving motor is fixedly installed inside the frame, a seat is fixedly installed at the end of the frame away from the battery, and the outer surface of the frame is penetrated by a solid wheel, and the solid wheel and the frame are rotatably connected, a frame is fixedly installed on the outer surface of the frame, and a chain is arranged on the outer surface of the frame, a handle is rotatably installed at the end of the frame away from the solid wheel, and a tire is arranged at one end of the handle, and a chain transmission mechanism is arranged between the frame and the frame, so that the lowered seedlings can fall smoothly through the chain transmission mechanism.
[0005] Preferably, the chain transmission mechanism includes: a chain, which is arranged on the side surface of the frame, and the frame is fitted with the outer surface of the chain, and a sprocket is rotatably installed on the outer surface of the frame, a sprocket is slidably installed on the end of the frame away from the solid wheel, and the sprocket and the frame are connected by bolts, a first funnel and a second funnel are fixedly installed on the outer surface of the chain, and the first funnel and the second funnel are both semi-conical, and the first funnel and the second funnel are rotatably connected to themselves, a block-shaped protrusion is provided at one end of the first funnel close to the chain, and a block-shaped protrusion is provided at one end of the second funnel away from the chain, block-shaped protrusions are provided on the outer surfaces of both sides of the frame, and the block-shaped protrusions on the outer surface of the frame are respectively in contact with the first funnel and the second funnel in sequence.
[0006] By adopting the above technical scheme, people can sit directly on the seat of the frame and throw seedlings into the first funnel and the second funnel in turn, so that the first funnel and the second funnel are brought to the bottom of the frame as the chain rotates, and the block protrusions on the outer surface of the frame contact the block protrusions on the outer surfaces of the first funnel and the second funnel, so that the first funnel and the second funnel are opened in turn to put down the seedlings, reducing the tedious operations of the workers and the pressure of physical labor.
[0007] Preferably, a seedling tray placing rack is rotatably installed at one end of the frame, and the seedling tray placing rack is engaged with the frame, seedling trays are slidably placed in the seedling tray placing rack, and the seedling trays in the seedling tray placing rack are designed to be placed at an angle, and gaps are provided between the seedling trays placed on the seedling tray placing rack, a working disk is engaged and installed at one end of the frame away from the solid wheel, and the end of the working disk close to the frame seat is concave in design, and a column is provided on the outer surface of one side of the working disk.
[0008] By adopting the above technical scheme, when the frame is moved and transported, the seedling tray placing rack can be rotated and folded to the seat of the frame. The seedling tray can be placed by tilting the seedling tray placing rack so that the frame will not fall out due to bumps when moving for transplanting seedlings. At the same time, the seedlings in the seedling tray can be taken out by operating on the working tray, and the empty seedling tray can be placed between the columns for storage.
[0009] Preferably, a transmission mechanism is provided between the frame and the solid wheel, and the solid wheel is driven to work together with other components through the transmission mechanism.
[0010] By adopting the above technical solution, the sliding plate can be driven to work while the solid wheel rotates.
[0011] Preferably, the transmission mechanism includes: a first gear, which is fixedly mounted on the output end of the driving motor, a second gear is rotatably mounted inside the frame, and rotating disks are fixedly mounted at both ends of the rotating shaft of the second gear, a third gear is fixedly mounted on the outer surface of the rotating shaft of the solid wheel, and the third gear is meshed with the second gear, and the diameter of the second gear is larger than the diameter of the third gear, the first gear is meshed with the second gear, and the diameter of the second gear is larger than the diameter of the first gear.
[0012] By adopting the above technical solution, the first gear can be meshed with the second gear to drive the rotating disks on both sides of the second gear to rotate, and at the same time can drive the third gear to rotate, so that the solid wheel can rotate and move forward together.
[0013] Preferably, a sliding plate is slidably mounted on the outer surface of the frame, and the outer surface of the sliding plate passes through the outer surface of the frame, and a spring is arranged between the frame and the sliding plate, and rollers are fixedly mounted on the outer surface of the rotating disk away from the second gear, and the rollers of the rotating disk are respectively in contact with the outer surface of the sliding plate.
[0014] By adopting the above technical solution, the rotation of the rotating disk will cause the rollers on the side surface of the rotating disk to rotate together, so that the rotating disk presses down the sliding plates on both sides of the frame in sequence, and then pushes the sliding plates back through the springs.
[0015] Preferably, a fixed bucket is slidably installed on the side surface of one end of the sliding plate away from the solid wheel, and the fixed bucket and the sliding plate are fixed by screws, and the fixed buckets are respectively located directly below the frames with block-shaped protrusions, an electric push rod is fixedly installed on the side surface of the fixed bucket, and a sliding block is fixedly installed on the output end of the electric push rod, and the sliding block is slidably connected to the fixed bucket, a ground-inserting sliding cone is slidably installed on one end of the fixed bucket, and one end of the ground-inserting sliding cone passes through the outer surface of the fixed bucket, the end of the ground-inserting sliding cone located outside the fixed bucket passes through the outer surface of the sliding block, and an inverted V-shaped through hole is opened on the outer surface of the sliding block, and the inverted V-shaped through hole of the sliding block fits with the outer surface of the ground-inserting sliding cone.
[0016] By adopting the above technical scheme, after the first funnel and the second funnel are opened and the seedlings fall out, the seedlings will fall into the fixed bucket. As the sliding plate is pushed out, the fixed bucket will drop, allowing the ground-inserting sliding cone to be inserted into the ground. Then the electric push rod will start to push the sliding block to move, causing the ground-inserting sliding cone to slide along the inverted V-shaped groove of the sliding block and open, pushing the soil on the ground and allowing the seedlings to fall. Then the sliding plate will rise, and the electric push rod will contract and drive the sliding block to move, causing the ground-inserting sliding cone to close, thereby automatically transplanting the seedlings.
[0017] Compared with the prior art, the utility model has the following beneficial effects: the device for quickly reseeding seedlings:
[0018] 1. When transplanting seedlings, you only need to sit on the seat of the frame, and then put the seedlings into the first funnel and the second funnel in turn. The chain is driven to move by the rotation of the sprocket, so that the chain drives the first funnel and the second funnel to pass under the frame with block protrusions in turn, so that the block protrusions of the first funnel and the second funnel contact with the block protrusions of the frame in turn, so that the first funnel and the second funnel are opened in turn, and the seedlings fall into the fixed bucket for transplanting. The operation is simple and the work intensity and physical burden of the workers are reduced;
[0019] 2. During mobile transportation, the seedling tray rack can be turned over so that the seedling tray rack can be stored between the rack body and the seat. When it needs to be used in the field, the seedling tray rack can be opened, and then the seedling tray with seedlings can be placed in the seedling tray rack. The seedling tray rack prevents the seedling tray from tilting, which can reduce the seedling tray from falling due to vibration during planting. At the same time, after the seedling tray is placed on the working tray and used, the empty seedling tray can be placed between the columns on one side of the working tray for storage and stacking, so that the seedling tray can have a place to be stacked and stored without falling, and can carry a large number of seedlings at the same time;
[0020] 3. As the drive motor starts, it will drive the solid wheel forward. Through the weight of the frame, battery and people, the solid wheel can press out grooves in the field after moving forward. As the solid wheel moves, the rotating disk will rotate together, pressing the sliding plate down, so that the fixed bucket can move together and insert the ground-inserting sliding cone into the soil. As the ground-inserting sliding cone is inserted into the soil, the electric push rod will push the sliding block out, so that the ground-inserting sliding cone moves along the inverted V-shaped groove of the sliding block and opens, allowing the seedlings in the fixed bucket to fall into the soil hole. Then the rotating disk disengages from the sliding plate, and the sliding plate is pushed back by the spring. After pushing it back, the electric push rod contracts and drives the sliding block to close the ground-inserting sliding cone, preparing to receive the seedlings that fall from the first funnel and the second funnel, so that the frame can sow the seedlings in sequence and in an orderly manner during the moving process. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the frame and the handlebar of the utility model;
[0022] Figure 2 This is a bottom-up three-dimensional structural diagram of the frame and the sliding plate of the utility model;
[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the frame and the working plate of the utility model;
[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the frame, the first funnel and the second funnel of the utility model;
[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the solid wheel and the drive motor of the utility model;
[0026] Figure 6 It is a schematic diagram of the three-dimensional explosion structure of the fixed bucket and the sliding block of the utility model.
[0027] In the figure: 1. frame; 2. battery; 3. solid wheel; 4. frame; 5. seedling tray placement rack; 6. driving motor; 7. first gear; 8. second gear; 9. rotating disk; 10. third gear; 11. chain; 12. first funnel; 13. second funnel; 14. working disk; 15. sliding plate; 16. spring; 17. fixed bucket; 18. electric push rod; 19. ground-inserted sliding cone; 20. sliding block; 21. turning handle; 22. sprocket. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] See also Figure 1-6 The utility model provides a technical solution: a device for quickly reseeding seedlings, comprising a frame 1, a battery 2 is fixedly installed at one end of the frame 1, and a driving motor 6 is fixedly installed inside the frame 1, a seat is fixedly installed at the end of the frame 1 away from the battery 2, and the outer surface of the frame 1 is penetrated by a solid wheel 3, and the solid wheel 3 is rotatably connected to the frame 1, a frame 4 is fixedly installed on the outer surface of the frame 1, and a chain 11 is arranged on the outer surface of the frame 4, a handle 21 is rotatably installed at the end of the frame 1 away from the solid wheel 3, and a tire is arranged at one end of the handle 21, a chain transmission mechanism is arranged between the frame 4 and the frame 1, and the seedlings put down can fall smoothly through the chain transmission mechanism, and the chain transmission mechanism comprises: a chain 11, and the chain 11 is arranged on the side of the frame 4 The surface of the frame 4 is fitted with the outer surface of the chain 11, and a sprocket 22 is rotatably installed on the outer surface of the frame 4, and a sprocket 22 is slidably installed on the end of the frame 4 away from the solid wheel 3, and the sprocket 22 and the frame 4 are connected by bolts, and a first funnel 12 and a second funnel 13 are fixedly installed on the outer surface of the chain 11, and the first funnel 12 and the second funnel 13 are both semi-conical, and the first funnel 12 and the second funnel 13 are rotatably connected to themselves, a block-shaped protrusion is opened at one end of the first funnel 12 close to the chain 11, and a block-shaped protrusion is opened at one end of the second funnel 13 away from the chain 11, and block-shaped protrusions are arranged on the outer surfaces of both sides of the frame 4, and the block-shaped protrusions on the outer surface of the frame 4 are in contact with the first funnel 12 and the second funnel 13 in sequence respectively.
[0030] When used in the field, the roller on the side surface of the rotating disk 9 can be installed, and then the direction can be adjusted by turning the handle 21. After that, the start switch supplies power to the driving motor 6 through the battery 2 to move the frame 1. Then, another operator can sit on the seat of the frame 1, take out the seedlings in the seedling tray and place them in the working tray 14 in turn, and then put the seedlings into the first funnel 12 and the second funnel 13 in turn. The rotation of the sprocket 22 drives the chain 11 in the frame 4 to move, so that the first funnel 12 and the second funnel 13 follow the chain 11 to move under the frame 4 with block protrusions, so that the block protrusions of the frame 4 are fitted with the block protrusions on the outer surfaces of the first funnel 12 and the second funnel 13, so that the first funnel 12 and the second funnel 13 are opened on both sides of the frame 1 in turn, so that the seedlings in the first funnel 12 and the second funnel 13 fall into the fixed bucket 17 respectively, thereby reducing the labor intensity and physical discomfort of the operator, reducing the risk of inserting seedlings, and improving the efficiency of inserting seeding.
[0031] A seedling tray placing rack 5 is rotatably installed at one end of the frame 1, and the seedling tray placing rack 5 is engaged with the frame 1, seedling trays are slidably placed in the seedling tray placing rack 5, and the seedling trays in the seedling tray placing rack 5 are designed for inclined placement, and gaps are provided between the seedling trays placed on the seedling tray placing rack 5, a working disk 14 is engaged and installed at one end of the frame 4 away from the solid wheel 3, and the end of the working disk 14 close to the seat of the frame 1 is concave in design, and a column is provided on the outer surface of one side of the working disk 14.
[0032] When transporting the frame 1, it is necessary to remove the rollers on the side surface of the rotating disk 9, and then the seedling tray placement rack 5 can be rotated and stored between the frame 1 and the seat to reduce the area during movement. At the same time, when arriving between the fields, the seedling tray placement rack 5 can be opened, and then the seedling trays can be inserted into the seedling tray placement rack 5. The inclined design of the seedling tray placement rack 5 ensures that the placed seedling trays will not be squeezed against each other, and the seedling trays will not automatically slide out and fall during bumps. At the same time, the empty seedling trays can be stored between the columns on one side of the working disk 14 after use.
[0033] There is a transmission mechanism between the frame 1 and the solid wheel 3, which drives the solid wheel 3 to work together with other components. The transmission mechanism includes: a first gear 7, which is fixedly mounted on the output end of the driving motor 6, a second gear 8 is rotatably mounted inside the frame 1, and rotating disks 9 are fixedly mounted at both ends of the rotating shaft of the second gear 8, a third gear 10 is fixedly mounted on the outer surface of the rotating shaft of the solid wheel 3, and the third gear 10 is meshed with the second gear 8, and the diameter of the second gear 8 is larger than the diameter of the third gear 10, the first gear 7 is meshed with the second gear 8, and the diameter of the second gear 8 is larger than the diameter of the first gear 7, a sliding plate 15 is slidably mounted on the outer surface of the frame 1, and the outer surface of the sliding plate 15 passes through the outer surface of the frame 1, and a spring 16 is arranged between the frame 1 and the sliding plate 15, a roller is fixedly mounted on the outer surface of the rotating disk 9 away from the second gear 8, and the rollers of the rotating disk 9 are respectively in contact with the outer surface of the sliding plate 15.
[0034] By starting the driving motor 6, the first gear 7 can be driven to rotate, and the second gear 8 can be rotated accordingly. At the same time, the second gear 8 is meshed with the third gear 10 to drive the solid wheel 3 to rotate, and the frame 1 can be driven forward. As the frame 1 moves forward, the rotating disk 9 can be rotated accordingly, so that the roller on one side of the rotating disk 9 squeezes the sliding plate 15 to slide on the frame 1. When the roller of the rotating disk 9 is disengaged from the sliding plate 15, the spring 16 will push the sliding plate 15 back, so that the solid wheel 3 drives the frame 1 to move while performing the seedling transplanting operation.
[0035] A fixed bucket 17 is slidably installed on the side surface of one end of the sliding plate 15 away from the solid wheel 3, and the fixed bucket 17 and the sliding plate 15 are fixed by screws, and the fixed bucket 17 is respectively located directly below the frame 4 with block-shaped protrusions, an electric push rod 18 is fixedly installed on the side surface of the fixed bucket 17, and a sliding block 20 is fixedly installed on the output end of the electric push rod 18, and the sliding block 20 is slidably connected to the fixed bucket 17, and a ground-inserting sliding cone 19 is slidably installed on one end of the fixed bucket 17, and one end of the ground-inserting sliding cone 19 passes through the outer surface of the fixed bucket 17, and the end of the ground-inserting sliding cone 19 located outside the fixed bucket 17 passes through the outer surface of the sliding block 20, and an inverted V-shaped through hole is opened on the outer surface of the sliding block 20, and the inverted V-shaped through hole of the sliding block 20 fits with the outer surface of the ground-inserting sliding cone 19.
[0036] As the frame 1 moves, the sliding plate 15 descends, driving the fixed bucket 17 to descend together, so that the ground-inserting sliding cone 19 is inserted into the soil. Then the electric push rod 18 will start to push open the sliding block 20, so that the ground-inserting sliding cone 19 is automatically expanded through the inverted V-shaped through hole of the sliding block 20, and a hole is formed in the ground, so that the seedlings in the fixed bucket 17 fall in. Then the sliding plate 15 rises, driving the fixed bucket 17 to rise, and the ground-inserting sliding cone 19 leaves the soil, and the soil falls back to cover the hole. Then the electric push rod 18 contracts and drives the sliding block 20, so that the ground-inserting sliding cone 19 is retracted to prepare for the next seedling to fall in.
[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A device for quickly reseeding seedlings, comprising a frame (1), a battery (2) being fixedly mounted on one end of the frame (1), a drive motor (6) being fixedly mounted inside the frame (1), a seat being fixedly mounted on the end of the frame (1) away from the battery (2), a solid wheel (3) penetrating the outer surface of the frame (1), and the solid wheel (3) being rotatably connected to the frame (1), a frame (4) being fixedly mounted on the outer surface of the frame (1), and a chain (11) being arranged on the outer surface of the frame (4), a handle (21) being rotatably mounted on the end of the frame (1) away from the solid wheel (3), and a tire being arranged on one end of the handle (21), characterized in that: A chain transmission mechanism is provided between the frame (4) and the frame body (1), and the lowered seedlings can be smoothly lowered by the chain transmission mechanism.
2. A device for rapid seedling reseeding according to claim 1, characterized in that: The chain transmission mechanism comprises: a chain (11), the chain (11) being arranged on a side surface of a frame (4), the frame (4) being in contact with the outer surface of the chain (11), and a sprocket (22) being rotatably mounted on the outer surface of the frame (4), a sprocket (22) being slidably mounted on an end of the frame (4) away from the solid wheel (3), and the sprocket (22) being connected to the frame (4) by bolts, and a first funnel (12) and a second funnel (13) being fixedly mounted on the outer surface of the chain (11) ), and the first funnel (12) and the second funnel (13) are both semi-conical, and the first funnel (12) and the second funnel (13) are rotatably connected to each other, the first funnel (12) has a block-shaped protrusion at one end close to the chain (11), and the second funnel (13) has a block-shaped protrusion at one end away from the chain (11), and the outer surfaces of both sides of the frame (4) are provided with block-shaped protrusions, and the block-shaped protrusions on the outer surface of the frame (4) are in contact with the first funnel (12) and the second funnel (13) in sequence.
3. A device for rapid seedling reseeding according to claim 1, characterized in that: A seedling tray placement rack (5) is rotatably mounted on one end of the frame (1), and the seedling tray placement rack (5) is engaged with the frame (1), a seedling tray is slidably placed in the seedling tray placement rack (5), and the seedling trays in the seedling tray placement rack (5) are designed to be placed obliquely, and gaps are provided between the seedling trays placed in the seedling tray placement rack (5), a working tray (14) is engaged and mounted on one end of the frame (4) away from the solid wheel (3), and an end of the working tray (14) close to the seat of the frame (1) is of an inwardly concave design, and a column is provided on the outer surface of one side of the working tray (14).
4. A device for rapid seedling reseeding according to claim 1, characterized in that: A transmission mechanism is provided between the frame (1) and the solid wheel (3), and the solid wheel (3) is driven by the transmission mechanism to work together with other components.
5. A device for rapid seedling replanting according to claim 4, characterized in that: The transmission mechanism comprises: a first gear (7), the first gear (7) being fixedly mounted on the output end of the driving motor (6), a second gear (8) being rotatably mounted inside the frame (1), and rotating disks (9) being fixedly mounted on both ends of the rotating shaft of the second gear (8), a third gear (10) being fixedly mounted on the outer surface of the rotating shaft of the solid wheel (3), and the third gear (10) being meshed with the second gear (8), and the diameter of the second gear (8) being larger than the diameter of the third gear (10), and the first gear (7) being meshed with the second gear (8), and the diameter of the second gear (8) being larger than the diameter of the first gear (7).
6. A device for rapid seedling reseeding according to claim 5, characterized in that: A sliding plate (15) is slidably mounted on the outer surface of the frame (1), and the outer surface of the sliding plate (15) penetrates the outer surface of the frame (1), and a spring (16) is provided between the frame (1) and the sliding plate (15). Rollers are fixedly mounted on the outer surface of the rotating disk (9) away from the second gear (8), and the rollers of the rotating disk (9) are respectively in contact with the outer surface of the sliding plate (15).
7. A device for rapid seedling reseeding according to claim 6, characterized in that: A fixed bucket (17) is slidably mounted on the side surface of one end of the sliding plate (15) away from the solid wheel (3), and the fixed bucket (17) and the sliding plate (15) are fixed by screws, and the fixed bucket (17) is respectively located directly below the frame (4) with the block-shaped protrusion, an electric push rod (18) is fixedly mounted on the side surface of the fixed bucket (17), and a sliding block (20) is fixedly mounted on the output end of the electric push rod (18), and the sliding block (20) is slidably connected to the fixed bucket (17), and a ground-inserting sliding cone (19) is slidably mounted on one end of the fixed bucket (17), and one end of the ground-inserting sliding cone (19) passes through the outer surface of the fixed bucket (17), and one end of the ground-inserting sliding cone (19) located outside the fixed bucket (17) passes through the outer surface of the sliding block (20), and an inverted V-shaped through hole is opened on the outer surface of the sliding block (20), and the inverted V-shaped through hole of the sliding block (20) fits with the outer surface of the ground-inserting sliding cone (19).