Electric polygonatum rhizome planter
Through the electric Polygonatum rhizome planting machine, using the motor-driven chain transmission mechanism and the terrain-profiling covering structure, the problems of low efficiency and poor applicability of traditional Polygonatum sowing are solved, and efficient and uniform multi-row sowing and depth adjustment are achieved, reducing planting costs.
Patent Information
- Application Number
- CN202422854071.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Traditional artificial sowing of Polygonatum rhizomes has low efficiency and precision, and traditional mechanical seeders have poor applicability and cannot meet large-scale planting needs.
An electric Polygonatum rhizome planting machine is used, which includes a walking frame, a sowing device, a furrowing device and a covering device. The motor-driven chain transmission mechanism is used to control the sowing speed and depth. Combined with the terrain-profiling covering structure, multiple rows can be sown simultaneously and the plant spacing can be adjusted.
The invention improves the sowing efficiency of Polygonatum rhizome, ensures the uniformity and depth consistency of sowing, reduces the labor intensity, is suitable for various terrains, and reduces the planting cost.
Smart Images

Figure CN223415272U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of vegetable sowing in agricultural machinery, in particular to an electric polygonatum rhizome planting machine. Background Art
[0002] Polygonatum sibiricum is a plant with significant medicinal value, and market demand for it has continued to grow in recent years. To meet this demand, expanding the area cultivated for Polygonatum sibiricum has become an inevitable trend. Traditional manual sowing methods are inefficient and labor-intensive, making them difficult to meet the needs of large-scale cultivation. Manual sowing of Polygonatum sibiricum rhizomes is slow and time-consuming. For large-scale plantings, manual sowing is slow and may miss the optimal planting time. Manual sowing also struggles to ensure uniformity and depth of seeding, impacting the emergence rate and growth quality of Polygonatum sibiricum. Prolonged bending over can easily lead to fatigue and physical injury.
[0003] Some traditional seeding machines are primarily suited for seed sowing and may not be suitable for sowing the unique soil type of Polygonatum rhizomes. The irregular shapes and sizes of Polygonatum rhizomes make it difficult for traditional seeders to accurately grasp and sow them. Some traditional mechanical seeders also require high power and energy consumption, increasing planting costs.
[0004] In summary, in order to solve the problems of low efficiency and low precision of manual sowing in Polygonatum sibiricum planting and poor applicability of traditional mechanical seeders, the development of an electric Polygonatum rhizome planter has important practical significance. Utility Model Content
[0005] The purpose of the embodiment of the present utility model is to provide an electric Polygonatum rhizome planting machine to solve the problems of low sowing efficiency and versatility of Polygonatum rhizome planting machines in related technologies. The present utility model has the characteristics of wide sowing range, integrated sowing and covering, easy adjustment of furrowing depth, and applicability to various terrains. At the same time, it can improve the sowing efficiency of Polygonatum rhizome.
[0006] According to an embodiment of the present invention, an electric polygonatum rhizome planting machine is provided, comprising:
[0007] Walking frame;
[0008] A sowing device, comprising a seed box, a spoon-chain seed meter, and a first transmission mechanism, wherein the seed box is mounted on the upper end of the traveling frame, the spoon-chain seed meter is mounted inside the seed box, and the first transmission mechanism is rotatably connected to the traveling frame to transmit power to the spoon-chain seed meter for seeding;
[0009] A furrowing device, comprising a furrow opener and a seeding furrow, wherein the seeding furrow is fixed to the traveling frame, an inlet end of the seeding furrow cooperates with the seeding port of the spoon chain seeding device, and the furrow opener is installed at the outlet end of the seeding furrow;
[0010] A soil covering device is installed at the lower end of the walking frame and is located behind the ditching device.
[0011] Optionally, the walking frame includes:
[0012] an upper frame and a second transmission mechanism;
[0013] A front wheel, mounted on the front end of the upper frame, provides grip;
[0014] The travel drive wheel is installed at the rear end of the upper frame to flatten the seed furrow and cover it with soil;
[0015] The motor drives the travel drive wheel to move through the second transmission mechanism.
[0016] Optionally, the second transmission mechanism includes:
[0017] The first chain transmission mechanism includes a first sprocket, a second sprocket and a first chain. The first sprocket is installed on the motor output shaft; the second sprocket is installed on the shaft of the travel drive wheel; and the first chain is sleeved on the first sprocket and the second sprocket.
[0018] Optionally, the spoon-chain seed metering device includes a first transmission shaft, a second transmission shaft, a third transmission shaft, a chain, and a seed spoon. The first transmission shaft is installed on the upper side of the seed box, the second transmission shaft is installed at the outlet of the seed groove, and the third transmission shaft is installed on the bottom of the seed box. Several groups of sprockets are installed on each transmission shaft, and each group of sprockets is connected by a chain transmission. There are several seed spoons on each chain.
[0019] Optionally, the first transmission mechanism includes a second chain transmission mechanism, a gearbox and a third chain transmission mechanism coupled in sequence, the front wheel rotates to drive the second chain transmission mechanism, and the third chain transmission mechanism drives the spoon chain seed metering device to rotate.
[0020] Optionally, the second chain transmission mechanism includes:
[0021] A third sprocket, a fourth sprocket and a second chain, wherein the third sprocket is mounted on the shaft of the front wheel, the second sprocket is mounted on the gearbox input shaft, and the second chain is sleeved on the third sprocket and the fourth sprocket.
[0022] Optionally, the third chain transmission mechanism includes: a fifth sprocket, a sixth sprocket and a third chain, the fifth sprocket is mounted on the gearbox output shaft; the sixth sprocket is mounted on the third transmission shaft; and the third chain is sleeved on the fifth sprocket and the sixth sprocket.
[0023] Optionally, the sowing device also includes a brush, which is installed at the seed transport port of the seed spoon.
[0024] Optionally, the furrowing device also includes a furrow opener fixing device, a furrow opener mounting rod, and a furrow opener fastening screw. The furrow opener can be adjustably mounted on the walking frame according to the furrowing depth. Several furrow opener fastening screws are evenly mounted on the furrow opener fixing device, and one furrow opener is fixed on each furrow opener fastening screw.
[0025] Optionally, the soil covering device includes a ground-profiling soil covering structure and a fixing rod; the fixing rod is fixed on the walking frame and is designed as an integrated whole with the ground-profiling soil covering structure.
[0026] The technical solutions provided by the embodiments of the present application may have the following beneficial effects:
[0027] It can be seen from the above embodiments that the utility model adopts technical means of electric power, a first chain transmission mechanism to control the travel speed, a combination of the travel speed and the sowing speed, and a first chain transmission mechanism to control the rotation speed of the spoon chain sowing device, thereby overcoming the technical problem of low sowing efficiency of traditional Polygonatum sowing machines, and achieving the technical effects of simultaneous sowing of multiple rows, adjustable sowing spacing, and adjustable furrowing depth.
[0028] The description and following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] The accompanying drawings herein are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.
[0030] Figure 1 This is a schematic diagram of the structure of an electric polygonatum rhizome planting machine provided in this example;
[0031] Figure 2 is a schematic diagram of the transmission shaft in this example;
[0032] Figure 3 This is a schematic diagram of the walking frame in this example;
[0033] Figure 4 It is a schematic diagram of the sowing device in this example;
[0034] Figure 5 It is a schematic diagram of the trenching device in this example;
[0035] Figure 6 It is a schematic diagram of the soil covering device in this example;
[0036] Figure 7 is a schematic diagram of the first power mechanism in this example;
[0037] Figure 8 Schematic diagram of the travel drive wheel in this example;
[0038] Figure 9 This is a cross-sectional schematic diagram of the spoon chain seed metering device of this example;
[0039] In the picture:
[0040] 1. Traveling frame; 11. Upper frame; 12. Second transmission mechanism; 13. Front wheel; 14. Traveling drive wheel; 15. Motor; 16. Battery; 121. First sprocket; 122. Second sprocket; 123. First chain;
[0041] 2. Seeding device; 21. Seed box; 22. Spoon-chain seed meter; 23. First transmission mechanism; 24. Brush; 221. First transmission shaft; 222. Second transmission shaft; 223. Third transmission shaft; 224. Chain; 225. Seed spoon; 231. Gearbox; 232. Third sprocket; 233. Fourth sprocket; 234. Second chain; 235. Fifth sprocket; 236. Sixth sprocket; 237. Third chain;
[0042] 3. Furrowing device; 31. Furrow opener; 32. Seed row furrow; 33. Furrow opener fixing device; 34. Furrow opener mounting rod; 35. Furrow opener fastening screw;
[0043] 4. Covering device; 41. Ground contour covering structure; 42. Fixing rod. DETAILED DESCRIPTION
[0044] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with certain aspects of the present invention, as detailed in the appended claims.
[0045] The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in the present application and the following claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "and / or," as used herein, refers to and encompasses any and all possible combinations of one or more of the associated listed items.
[0046] It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It is to be further understood that the terms "approximately" and "substantially" as used herein refer to the approximate or substantially similar range of values that one of ordinary skill in the art would consider as the equivalent of a recited value. It is to be understood that, although the terms "first," "second," "third," etc. can be used herein to describe various information, the information should not be limited by these terms. These terms are only used to distinguish one category of information from another. For example, a first information can also be termed a second information, and, similarly, a second information can also be termed a first information, without departing from the scope of the present application. The word "if" as used herein means "when" or "upon" or "in response to the determination" depending on the context.
[0047] Reference Figures 1-9 As shown in the application, the electric rhizome of polygonatum sibiricum planting machine comprises a walking frame 1, a seeding device 2, a ditching device 3 and a covering device 4. The seeding device 2 comprises a seed box 21, a spoon chain type seed metering device 22 and a first transmission mechanism 23. The seed box 21 is installed on the upper end of the walking frame 1. The spoon chain type seed metering device 22 is installed in the seed box 21. The first transmission mechanism 23 is rotationally connected with the walking frame 1 and transmits power to the spoon chain type seed metering device 22 to seed. The ditching device 3 comprises a ditcher 31 and a seeding ditch 32. The seeding ditch 32 is fixed on the walking frame 1 and its inlet end is matched with the seeding port of the spoon chain type seed metering device 22. The ditcher 31 is installed on the outlet end of the seeding ditch 32. The covering device 4 is installed on the lower end of the walking frame 1 and behind the ditching device 3.
[0048] As can be seen from the above embodiment, the walking frame 1 can complete the seeding operation on different terrains. The multiple seed spoons 225 in the spoon chain type seeding device 2 can improve the seeding efficiency. The brush 24 in the seed box 21 can prevent the rhizome of polygonatum sibiricum from falling off from the inlet and causing waste. The gear position of the gearbox 231 is adjusted to control the seeding speed of the spoon chain type seeding device, so as to adjust the plant spacing of the rhizome of polygonatum sibiricum. The height of the ditching device 3 and the ground is controlled to adjust the depth of the ditching. When the seeding ground has ups and downs, the soil after ditching is covered again through the covering profiling device. The driving wheel can also compact the soil to achieve the function of automatic covering.
[0049] In one embodiment, the walking frame 1 includes: an upper frame 11, a second transmission mechanism 12, front wheels 13, travel drive wheels 14, and a motor 15. The front wheels 13 are mounted at the front end of the upper frame 11 to provide grip; the travel drive wheels 14 are mounted at the rear end of the upper frame 11 to flatten the seed furrows and cover them with soil; and the motor 15 drives the travel drive wheels 14 via the second transmission mechanism 12. The front wheels 13 can be composed of multiple iron wheels, which are rotated and cross-mounted on the front side of the upper frame 11. The motor 15 is located at the rear end of the walking frame 1 to effectively distribute the weight of the Polygonatum odoratum seed drill and prevent the output shaft of the motor 15 from being too long, which could easily cause damage. The motor 15 can be powered by stored electricity. The rearward mounting of the seed drill's engine and other components ensures a more even weight distribution between the front and rear of the machine, a more optimal center of gravity, and better vehicle balance and stability during driving, reducing the risk of rollover and tailspin. When the planter starts or climbs a slope, the center of gravity shifts backward, increasing the load on the rear wheels and providing more grip.
[0050] In one embodiment, the second transmission mechanism 12 includes a motor 15 and a first chain transmission mechanism. The motor 15 is mounted on the upper frame 11. The first chain transmission mechanism includes a first sprocket 121, a second sprocket 122, and a first chain 123. The first sprocket 121 is mounted on the output shaft of the motor 15. The second sprocket 122 is mounted on the shaft of the travel drive wheel 14. The first chain 123 is sleeved onto the first sprocket 121 and the second sprocket 122. When the motor 15 rotates, the first sprocket 121 on the output shaft rotates. This, in turn, causes the second sprocket 122 in the second transmission mechanism 12 to rotate via the first chain 123. This, in turn, causes the shaft of the drive wheel on which the second sprocket 122 is located to rotate, allowing the planter to move. The chain transmission effectively transmits the power of the motor 15 to the drive wheel. This means that the power generated by the motor 15 can be more fully utilized by the drive wheel, ensuring stable and efficient operation of the planter, allowing the planter to maintain good driving conditions during field operations and ensuring that seeds are evenly planted at the predetermined spacing and depth.
[0051] In an embodiment, the spoon-chain seed metering device 22 comprises a first transmission shaft 221, a second transmission shaft 222, a third transmission shaft 223, a chain 224, and a seed spoon 225. The first transmission shaft 221 is installed on the upper side of the seed box 21, the second transmission shaft 222 is installed at the outlet of the seed furrow 32, and the third transmission shaft 223 is installed on the bottom of the seed box 21. A plurality of sets of chain wheels are installed on each transmission shaft, and each set of chain wheels is connected by a chain 224. A plurality of seed spoons 225 are installed on each chain 224. When the seed spoons 225 are installed on the chains 224, the movement of the chains 224 is regular and stable. This stability can ensure that the movement trajectory of the seed spoons 225 during the seeding process is relatively fixed, so that the seeds can be sown at a predetermined spacing and depth.
[0052] In an embodiment, the first transmission mechanism 23 comprises a second chain transmission mechanism, a gearbox 231, and a third chain transmission mechanism, which are coupled in sequence. The second chain transmission mechanism is driven by the front wheel 13, and the third chain transmission mechanism drives the spoon-chain seed metering device 22 to rotate. The continuous operation of the chain 224 can ensure that the seed spoon 225 works continuously. During the seeding process, the seed spoon 225 completes the seed taking and sowing actions quickly with the cyclic movement of the chain 224. Moreover, the chain 224 transmission itself has high efficiency, which can provide stable power support for the seed spoon 225, so that the seeder can complete the large-area seeding task in a short time.
[0053] In an embodiment, the second chain transmission mechanism comprises a third chain wheel 232, a fourth chain wheel 233, and a second chain 234. The third chain wheel 232 is installed on the shaft of the front wheel 13, the fourth chain wheel 233 is installed on the input shaft of the gearbox 231, and the second chain 234 is sleeved on the third chain wheel 232 and the fourth chain wheel 233. The movement of the front wheel is used as the power source, and the power is input into the gearbox through chain transmission, which can provide power for the spoon-chain seed metering device 2. The continuous operation of the chain 224 can ensure that the seed spoon 225 works continuously. During the seeding process, the seed spoon 225 completes the seed taking and sowing actions quickly with the cyclic movement of the chain 224. Moreover, the chain 224 transmission itself has high efficiency, which can provide stable power support for the seed spoon 225, so that the seeder can complete the large-area seeding task in a short time.
[0054] In one embodiment, the third chain drive mechanism includes a fifth sprocket 235, a sixth sprocket 236, and a third chain 237. The fifth sprocket 235 is mounted on the output shaft of the transmission 231; the sixth sprocket 236 is mounted on the second transmission shaft 222; and the third chain 237 is sleeved onto the fifth and sixth sprockets 235, 236. The transmission output shaft and the second transmission shaft 222 are linked in a chain drive, efficiently transmitting power from the front wheel 13 to the spoon-chain seeder 2 with minimal energy loss. This ensures stable and efficient operation of the seeder and ensures uniform seeding at the predetermined spacing and depth. Adjusting the transmission can change the transmission rate, enabling the spoon-chain seeder 2 to vary the seeding rate.
[0055] In one embodiment, the sowing device 2 further includes a brush 24, which is installed at the seeding port of the seeding spoon 225 to prevent the Polygonatum sibiricum seeds from leaking out of the seeding port of the seeding spoon 225, causing seed waste and loss.
[0056] In one embodiment, the trenching device 3 further includes a trenching device fixing device 33, a trenching device mounting rod 34, and a trenching device fastening screw 35. The trenching device 31 can be adjustably mounted on the walking frame 1 according to the trenching depth. A plurality of trenching device fastening screws 35 are evenly mounted on the trenching device fixing device 33, and one trenching device 31 is fixed to each trenching device fastening screw 35. The trenching device fastening screw 35 connects the trenching device 31 to the trenching device mounting rod 34 to prevent the trenching device 31 from moving up and down on the trenching device mounting rod 34 during movement, resulting in unstable trenching.
[0057] In one embodiment, the soil covering device 4 includes a ground-contacting soil covering structure 41 and a fixing rod 42. The fixing rod 42 is fixed to the traveling frame 1 and is integrated with the ground-contacting soil covering structure 41. When the furrow opener 31 of the Huangjing seeder creates a trench and the seeds fall into the trench, the ground-contacting soil covering structure 41 slides to fill the trench, and the driving wheel compacts the soil again, completing the soil covering operation.
[0058] The working principle of this utility model is as follows:
[0059] During seeding, the battery 16 provides a power source for the motor 15. The power output of the motor 15 is transmitted through a second transmission mechanism 12 consisting of a first sprocket 121 on the output shaft of the motor 15, a second sprocket 122 on the shaft of the Huangjing seeder's travel drive wheel 14, and a first chain 123. The power is then transmitted to the travel drive wheel 14 via the first chain 123, causing the Huangjing seeder to move. The travel drive wheel 14 drives the furrow opener 31 to open a furrow. The furrow opener mounting rod 34 is fixed to the furrow opener fixing device 33. The furrow opener 31 can be adjusted to the furrowing depth on the travel frame 1. Several furrow opener fastening screws 35 are evenly mounted on the furrow opener fixing device 33, with each furrow opener 31 fixed to the furrow opener fastening screw 35. The furrow opener fastening screws 35 connect the furrow opener 31 to the furrow opener mounting rod 34, preventing the furrow opener 31 from moving up and down on the furrow opener mounting rod 34 during movement. As the seeder moves forward, the movement of the drive wheel drives the movement of the front wheel assembly 13. The third sprocket 232 on the front wheel 13 shaft transmits power to the input shaft of the gearbox 231, where the fourth sprocket 233 is located, via the second chain 234. This power source is used to adjust the gear position of the gearbox 231. The fifth sprocket 235 on the output shaft of the gearbox 231 transmits the adjusted kinetic energy to the second transmission shaft 222, where the sixth sprocket 236 is located, via the third chain 237. Ultimately, the chain 224, which is attached to the sprockets on the first transmission shaft 221, the second transmission shaft 222, and the third transmission shaft 223, controls the spoon chain seed meter 22 to discharge the seeds. As the seeds fall into the opened grooves, the ground-contacting soil covering structure 41, which is fixed to the frame and integrated with the ground-contacting soil covering structure 41, is fixed to the frame and integrated with the ground-contacting soil covering structure 41. After the furrow opener 31 of the Huangjing seeder opens the grooves, the seeds fall into the grooves. The ground-contacting soil covering structure 41 slides to fill the grooves, and the drive wheel compacts the soil again, completing the soil covering operation.
[0060] Those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the disclosure herein. This invention is intended to cover any variations, uses, or adaptations of the invention that adhere to the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered as exemplary only; the true scope and spirit of the invention are indicated by the claims.
[0061] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims
1. An electric polygonatum rhizome planting machine, characterized in that: include: Walking frame; A sowing device, comprising a seed box, a spoon-chain seed meter, and a first transmission mechanism, wherein the seed box is mounted on the upper end of the traveling frame, the spoon-chain seed meter is mounted inside the seed box, and the first transmission mechanism is rotatably connected to the traveling frame to transmit power to the spoon-chain seed meter for seeding; A furrowing device, comprising a furrow opener and a seeding furrow, wherein the seeding furrow is fixed to the traveling frame, an inlet end of the seeding furrow cooperates with the seeding port of the spoon chain seeding device, and the furrow opener is installed at the outlet end of the seeding furrow; A soil covering device is installed at the lower end of the walking frame and is located behind the ditching device.
2. The electric polygonatum rhizome planting machine according to claim 1, characterized in that: The walking frame comprises: an upper frame and a second transmission mechanism; A front wheel, mounted on the front end of the upper frame, provides grip; The travel drive wheel is installed at the rear end of the upper frame to flatten the seed furrow and cover it with soil; The motor drives the travel drive wheel to move through the second transmission mechanism.
3. The electric polygonatum rhizome planting machine according to claim 2, characterized in that: The second transmission mechanism includes: The first chain transmission mechanism includes a first sprocket, a second sprocket and a first chain. The first sprocket is installed on the motor output shaft; the second sprocket is installed on the shaft of the travel drive wheel; and the first chain is sleeved on the first sprocket and the second sprocket.
4. The electric polygonatum rhizome planting machine according to claim 3, characterized in that: The spoon chain seed metering device includes a first transmission shaft, a second transmission shaft, a third transmission shaft, a chain, and a seed spoon. The first transmission shaft is installed on the upper side of the seed box, the second transmission shaft is installed at the outlet of the seed groove, and the third transmission shaft is installed at the bottom of the seed box. Several groups of sprockets are installed on each transmission shaft, and each group of sprockets is connected by a chain transmission. There are several seed spoons on each chain.
5. The electric polygonatum rhizome planting machine according to claim 4, characterized in that: The first transmission mechanism includes a second chain transmission mechanism, a gearbox and a third chain transmission mechanism coupled in sequence. The rotation of the front wheel drives the second chain transmission mechanism, and the third chain transmission mechanism drives the spoon chain seed metering device to rotate.
6. The electric polygonatum rhizome planting machine according to claim 5, characterized in that: The second chain transmission mechanism comprises: A third sprocket, a fourth sprocket and a second chain, wherein the third sprocket is mounted on the shaft of the front wheel, the second sprocket is mounted on the gearbox input shaft, and the second chain is sleeved on the third sprocket and the fourth sprocket.
7. The electric polygonatum rhizome planting machine according to claim 5, characterized in that: The third chain transmission mechanism includes: a fifth sprocket, a sixth sprocket and a third chain, the fifth sprocket is mounted on the gearbox output shaft; the sixth sprocket is mounted on the third transmission shaft; the third chain is sleeved on the fifth sprocket and the sixth sprocket.
8. The electric polygonatum rhizome planting machine according to claim 4, characterized in that: The sowing device also includes a brush, which is installed at the seeding port of the seed spoon.
9. The electric polygonatum rhizome planting machine according to claim 1, characterized in that: The furrowing device also includes a furrow opener fixing device, a furrow opener mounting rod, and a furrow opener fastening screw. The furrow opener can be adjustably mounted on the walking frame according to the furrowing depth. Several furrow opener fastening screws are evenly mounted on the furrow opener fixing device, and one furrow opener is fixed on each furrow opener fastening screw.
10. The electric polygonatum rhizome planting machine according to claim 1, characterized in that: The soil covering device comprises a ground-profile soil covering structure and a fixing rod; the fixing rod is fixed on the traveling frame and is designed as an integrated whole with the ground-profile soil covering structure.