Grassland vegetation restoration device

Abstract

The utility model discloses a grassland vegetation restoration device which comprises a driving soil loosening assembly, a sowing assembly, a watering assembly and a grass lattice laying assembly, the grass lattice laying assembly is arranged on the watering assembly, the sowing assembly is arranged on the front side of the watering assembly, and the driving soil loosening assembly is arranged on the watering assembly. The utility model belongs to the technical field of grassland vegetation planting. In the process of driving the soil loosening assembly to drive the device to move forwards, hardened grassland soil is scarified, adaptive vegetation seeds are planted in the scarified soil through the seeding assembly under the driving of the front wheel, the soil is irrigated through the watering assembly under the driving of the rear wheel, and the soil is irrigated through the watering assembly in the process of moving forwards. The grass lattice laying assembly is used for laying grass drawing walls on the two sides of the device in the longitudinal direction and the transverse direction, then grass lattices capable of preventing wind and sand are formed, and a proper environment is provided for seed germination.

Description

Technical Field

[0001] The utility model belongs to the technical field of grassland vegetation planting, in particular to a grassland vegetation restoration device. Background Art

[0002] Due to the influence of wind and sand, grasslands will degrade and the soil will become compact, resulting in reduced air and water permeability and deterioration of soil properties, leading to desertification and salinization of grasslands. In order to prevent further degradation of grasslands, human intervention is necessary.

[0003] In the existing technology, the measures to deal with grassland degradation and improve degraded sandy grasslands are mainly to copy the mechanized operation methods such as shallow plowing, heavy raking and deep loosening of agricultural mechanized operations, and then sow grass seeds. Among them, the alkali grass with drought resistance, cold resistance, alkali resistance and wind and sand resistance is widely used in grassland ecological restoration. However, due to the wind and sand, the soil moisture is lost too quickly, affecting the germination of grass seeds. The existing method of preventing and controlling wind and sand is to lay grass grids, but now most of them are laid mechanically, and then grassland vegetation is planted in the grass grids manually, which seriously affects the speed of grassland vegetation restoration. In addition, the existing grassland equipment has a large volume and gravity, and the economic cost is high. Therefore, a small grassland vegetation restoration device that can be operated by one person is needed. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a grassland vegetation restoration device, which effectively solves the above problems.

[0005] The technical solution adopted by the utility model is as follows: a grassland vegetation restoration device proposed by the utility model includes a driving loosening component, a sowing component, a watering component and a grass grid laying component, wherein the grass grid laying component is arranged on the watering component, the sowing component is arranged on the front side of the watering component, and the driving loosening component is arranged on the watering component;

[0006] The driving loosening assembly includes a motor fixing plate and a front wheel fixing frame, the motor fixing plate is arranged on the watering assembly, the front wheel fixing frame is arranged on the sowing assembly, a handle is arranged on the side of the motor fixing plate, a motor is arranged above the motor fixing plate, a motor transmission wheel is arranged on the front side of the motor shaft of the motor, a rear wheel is arranged at the bottom of the motor fixing plate, a driving shaft is connected between the rear wheels, a driving shaft transmission wheel is arranged at the center of the driving shaft, the driving shaft transmission wheel and the motor transmission wheel are connected by a transmission belt, and a rear wheel transmission wheel is arranged on the side of the rear wheel.

[0007] Furthermore, a loosening plow sleeve is provided at the front end of the front wheel fixing frame, front wheels are provided on both sides of the loosening plow sleeve, a front wheel driving wheel is provided on the inner wall of the front wheel, a loosening plow is provided in a linear array on the lower side of the loosening plow sleeve, and the driving loosening assembly also includes a spreading wheel, and the spreading wheel is located at the bottom of the watering assembly.

[0008] Furthermore, a pointed plate is provided on the front side of the bottom of the loosening plow, a flying soil plate is provided on the rear side of the loosening plow, and the loosening plow is also provided with a soil dividing plate, the soil dividing plate is located between the pointed plate and the flying soil plate, a soil unloading trough is provided in the middle of the flying soil plate, and the soil entry angle range of the pointed plate is 20° to 30°.

[0009] Furthermore, the sowing assembly includes a seed storage box and a sowing shaft, the seed storage box is provided with a feeding port on the top, the seed storage box is provided with a discharge port on the bottom, the sowing shaft rotates in the discharge port of the seed storage box, and the front wheel is fixedly mounted on the front side of the seed storage box.

[0010] Furthermore, sowing shaft rotating wheels are provided at both ends of the sowing shaft, the sowing shaft rotating wheels are located outside the seed storage box, the sowing shaft rotating wheels are connected to the front wheel transmission wheel through a transmission belt, and seed grooves are provided in a circular array on the outer wall of the sowing shaft.

[0011] Furthermore, the watering assembly includes a water tank, a booster cylinder and a liquid storage pipe, the water tank is arranged at the rear side of the seed storage box, a rotating seat is arranged on the top of the water tank, the booster cylinder is arranged on the side of the water tank, the liquid storage pipe is arranged inside the water tank, one end of the liquid storage pipe is connected to the bottom of the booster cylinder, a spray pipe is arranged on the side of the liquid storage pipe, the end of the spray pipe is located on the outside of the water tank, a suction pipe is arranged at the bottom of the liquid storage pipe, and a one-way valve is arranged on the suction pipe.

[0012] Furthermore, a boosting slide is provided in the boosting cylinder, a slide column is provided above the boosting slide, the watering assembly also includes a boosting transmission wheel and an arc-shaped connecting rod, the boosting transmission wheel rotates on a rotating seat, the boosting transmission wheel is connected to the rear wheel transmission wheel through a transmission belt, a connecting column is provided on the surface of the boosting transmission wheel, one end of the arc-shaped connecting rod is hinged to the connecting column on the surface of the boosting transmission wheel, and the other end of the arc-shaped connecting rod is hinged to the top of the slide column.

[0013] Furthermore, the grass grid laying assembly includes a straw mat box, a rebound pressure column and a rolling wheel. The straw mat box is arranged on both sides of the water tank, the rebound pressure column is located at the bottom of the straw mat box, the rolling wheel rotates at the bottom of the rebound pressure column, and the bottom of the rolling wheel is lower than the horizontal plane on which the front wheels and the rear wheels travel.

[0014] Furthermore, a guide groove is provided under the straw mat box, a straw mat rotating column is provided at the center of the straw mat box, a rolling wheel axle is connected between the rolling wheels, the rolling wheel axle rotates on the rebound pressure column, the paving wheel linear array is provided on the rolling wheel axle, and the paving wheels rotate on the rolling wheel axle.

[0015] The beneficial effects achieved by the utility model using the above structure are as follows:

[0016] 1. As the device moves forward, the loosening plow on the lower side of the loosening plow shaft sleeve will break up the compacted soil to form grooves. At the same time, the front wheel drive wheel on the front wheel will drive the sowing shaft to rotate, and the grass seeds in the seed storage box will fall into the seed groove of the sowing shaft. As the seed groove rotates to the outside of the discharge port of the seed storage box, it falls into the groove of the soil under the action of gravity. Under the rolling pressure of the subsequent spreading wheel, the seeds are covered in the soil to achieve the technical effect of grassland vegetation seed planting. The seeds are selected from alkali-resistant grass seeds with drought resistance, cold resistance, alkali resistance, and wind and sand resistance.

[0017] 2. The unique shape design of the loosening plow can improve the efficiency of soil turning. The pointed plate of the loosening plow can shovel up the compacted soil. The angle of the pointed plate entering the soil is in the range of 20° to 30°, which effectively reduces the wear of the pointed plate by sandy soil. The soil is broken up by the soil dividing plate and sent to both sides by the flying soil plate, forming grooves on the ground for easy grass seed planting. At the same time, the soil unloading trough in the center of the flying soil plate is opposite to the rear side of the soil dividing plate to prevent the soil from sticking to the intersection of the rear side of the soil dividing plate and the flying soil plate, so as not to affect the efficiency of the soil dividing plate in breaking up the soil and the efficiency of the flying soil plate in throwing soil to both sides.

[0018] 3. The motor drives the rear wheel to rotate, making the device move forward. At the same time, the rear wheel drive wheel drives the boost drive wheel to rotate, the boost drive wheel drives the arc-shaped connecting rod to move, and the arc-shaped connecting rod drives the boost slide plate to do up and down reciprocating motion in the boost cylinder. As the pressure inside the liquid storage tube increases and decreases, the water in the water tank is sprayed out from the spray pipe, achieving the technical effect of irrigating the soil where grass seeds are planted.

[0019] 4. Before the device moves, the straw mat is rolled up on the straw mat rotating column and placed in the straw mat box. The starting head of the straw mat is laid on the ground through the guide groove and pressed by the rolling wheel. As the device moves forward, the rolling wheel drives the straw mat to continuously discharge from the guide groove and press the straw mat into the soil, forming a row of windbreak walls on both sides of the device. As the grass seeds are planted row by row, another layer of straw wall will be erected on the edge of the original straw wall to improve the anti-wind and sand effect, and the seeds are sown twice vertically and horizontally to form a grass grid, thus achieving the technical effect of laying grass grids. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a stereoscopic diagram of a grassland vegetation restoration device proposed by the utility model;

[0021] Figure 2 This is a bottom view of a grassland vegetation restoration device proposed by the utility model;

[0022] Figure 3 for Figure 2 A cross-sectional view along the cutting line AA;

[0023] Figure 4 for Figure 2A cross-sectional view along the cutting line BB;

[0024] Figure 5 for Figure 4 A cross-sectional view along the cutting line CC;

[0025] Figure 6 The utility model is a schematic structural diagram of a soil loosening plow of a grassland vegetation restoration device.

[0026] Among them, 1. driving loosening assembly, 11. motor fixing plate, 111. handle, 12. motor, 121. motor drive wheel, 13. rear wheel, 131. drive shaft, 1311. drive shaft drive wheel, 132. rear wheel drive wheel, 14. front wheel fixing frame, 141. loosening plow shaft sleeve, 15. front wheel, 151. front wheel drive wheel, 16. loosening plow, 161. pointed plate, 162. soil dividing plate, 163. flying soil plate, 164. soil unloading trough, 17. paving wheel, 2. sowing assembly, 21. storage Seed box, 22. Sowing shaft, 221. Sowing shaft rotating wheel, 222. Seed slot, 3. Watering assembly, 31. Water tank, 311. Rotating seat, 32. Booster cylinder, 33. Booster slide plate, 331. Slide plate column, 34. Liquid storage pipe, 341. Spraying pipe, 342. Liquid suction pipe, 35. Booster transmission wheel, 36. Arc connecting rod, 4. Grass grid laying assembly, 41. Straw mat box, 411. Guide groove, 412. Straw mat rotating column, 42. Rebound pressure column, 43. Rolling wheel, 431. Rolling wheel axle.

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] like Figure 1-Figure 6As shown, a grassland vegetation restoration device proposed by the utility model includes a driving loosening component 1, a sowing component 2, a watering component 3 and a grass grid laying component 4, the grass grid laying component 4 is arranged on the watering component 3, and from the perspective of the actual forward movement of the device, the sowing component 2 is arranged in front of the watering component 3, and the driving loosening component 1 is arranged on the watering component 3; the driving loosening component 1 includes a motor fixing plate 11 and a front wheel fixing frame 14, the motor fixing plate 11 is arranged on the watering component 3, and the front wheel fixing frame 14 It is arranged on the sowing component 2, a handle 111 is arranged on the side of the motor fixing plate 11, a motor 12 is arranged above the motor fixing plate 11, a motor transmission wheel 121 is arranged on the front side of the motor shaft of the motor 12, a rear wheel 13 is arranged at the bottom of the motor fixing plate 11, a driving shaft 131 is connected between the rear wheels 13, a driving shaft transmission wheel 1311 is arranged at the center of the driving shaft 131, the driving shaft transmission wheel 1311 is connected to the motor transmission wheel 121 by a transmission belt, and a rear wheel transmission wheel 132 is arranged on the side of the rear wheel 13.

[0030] A loosening plow sleeve 141 is provided at the front end of the front wheel fixing frame 14, front wheels 15 are provided on both sides of the loosening plow sleeve 141, a front wheel driving wheel 151 is provided on the inner wall of the front wheel 15, and a loosening plow 16 is provided in a linear array at the lower side of the loosening plow sleeve 141. The driving loosening component 1 also includes a paving wheel 17, and the paving wheel 17 is located at the bottom of the watering component 3.

[0031] A pointed plate 161 is provided at the front side of the bottom of the loosening plow 16, and a flying soil plate 163 is provided at the rear side of the loosening plow 16. The loosening plow 16 is also provided with a soil dividing plate 162, and the soil dividing plate 162 is located between the pointed plate 161 and the flying soil plate 163. A soil unloading trough 164 is provided in the middle of the flying soil plate 163, and the soil entry angle range of the pointed plate is 20° to 30°.

[0032] The sowing assembly 2 includes a seed storage box 21 and a sowing shaft 22. A feeding port is provided on the top of the seed storage box 21, and a discharge port is provided at the bottom of the seed storage box 21. The sowing shaft 22 rotates in the discharge port of the seed storage box 21, and the front wheel fixing frame 14 is provided on the front side of the seed storage box 21.

[0033] Both ends of the sowing shaft 22 are provided with sowing shaft rotating wheels 221, which are located outside the seed storage box 21. The sowing shaft rotating wheels 221 are connected to the front wheel driving wheel 151 through a transmission belt, and a circular array of seed grooves 222 are provided on the outer wall of the sowing shaft 22.

[0034] The watering assembly 3 includes a water tank 31, a booster cylinder 32 and a liquid storage pipe 34. The water tank 31 is arranged at the rear side of the seed storage box 21. A rotating seat 311 is arranged on the top of the water tank 31. The booster cylinder 32 is arranged on the side of the water tank 31. The liquid storage pipe 34 is arranged inside the water tank 31. One end of the liquid storage pipe 34 is connected to the bottom of the booster cylinder 32. A spray pipe 341 is arranged on the side of the liquid storage pipe 34. The end of the spray pipe 341 is located on the outside of the water tank 31. A suction pipe 342 is arranged at the bottom of the liquid storage pipe 34, and a one-way valve is arranged on the suction pipe 342.

[0035] A booster slide 33 is provided in the booster cylinder 32, and a slide column 331 is provided above the booster slide 33. The watering assembly 3 also includes a booster transmission wheel 35 and an arc-shaped connecting rod 36. The booster transmission wheel 35 rotates on the rotating seat 311, and the booster transmission wheel 35 is connected to the rear wheel transmission wheel 132 through a transmission belt. A connecting column is provided on the surface of the booster transmission wheel 35, and one end of the arc-shaped connecting rod 36 is hinged to the connecting column on the surface of the booster transmission wheel 35, and the other end of the arc-shaped connecting rod 36 is hinged to the top of the slide column 331.

[0036] The grass grid laying assembly 4 includes a straw mat box 41, a rebound pressure column 42 and a rolling wheel 43. The straw mat box 41 is arranged on both sides of the water tank 31, the rebound pressure column 42 is located at the bottom of the straw mat box 41, and the rolling wheel 43 rotates at the bottom of the rebound pressure column 42. The bottom of the rolling wheel 43 is lower than the horizontal plane on which the front wheel 15 and the rear wheel 13 travel.

[0037] A guide groove 411 is provided under the straw mat box 41, a straw mat rotating column 412 is provided at the center of the straw mat box 41, a rolling wheel shaft 431 is connected between the rolling wheels 43, the rolling wheel shaft 431 rotates on the rebound pressure column 42, and the paving wheels 17 are arranged in a linear array on the rolling wheel shaft 431, and the paving wheels 17 rotate on the rolling wheel shaft 431.

[0038] When in use, the motor 12 is turned on, and the motor transmission wheel 121 drives the driving shaft transmission wheel 1311 to rotate, and then the driving shaft 131 drives the rear wheel 13 to rotate, and the whole device moves forward. During the driving process of the rear wheel 13, the rear wheel transmission wheel 132 drives the boost transmission wheel 35 to rotate, and the boost transmission wheel 35 drives the arc-shaped connecting rod 36 to move, and the arc-shaped connecting rod 36 drives the boost slide plate 33 to do up and down reciprocating motion in the boost cylinder 32. When the boost slide plate 33 moves upward, the volume of the chamber below the boost cylinder 32 increases, so that negative pressure is generated inside the liquid storage pipe 34, and then the suction pipe 342 sucks the water in the water tank 31 into the liquid storage pipe 34. When the boost slide plate 33 moves downward, the pressure inside the liquid storage pipe 34 increases, and the one-way valve of the suction pipe 342 prevents water from flowing back into the water tank 31, so that the water inside the liquid storage pipe 34 is sprayed from the spray pipe 341 to the ground for soil irrigation.

[0039] As the device moves forward, it drives the front wheel 15 to rotate, and the front wheel drive wheel 151 drives the sowing shaft rotating wheel 221 to rotate, and then the sowing shaft 22 rotates. During the rotation of the sowing shaft 22, the grass seeds in the seed storage box 21 will fall into the seed groove 222 of the sowing shaft 22, and as the seed groove 222 rotates to the outside of the discharge port of the seed storage box 21, it falls onto the soil under the action of gravity. In the process of the device moving forward, the loosening plow 16 on the lower side of the loosening plow sleeve 141 will break the compacted soil to form a groove, and the seeds will fall into it. Under the rolling pressure of the subsequent spreading wheel 17, the seeds will be covered in the soil and irrigated by the rear spray pipe 341 to complete the planting of grass seeds.

[0040] Before the device moves, the straw mat is rolled up on the straw mat rotating column 412 and placed in the straw mat box 41. The starting head of the straw mat is laid on the ground through the guide groove 411 and is pressed by the rolling wheel 43. As the device moves forward, the rolling wheel 43 drives the straw mat to continuously discharge from the guide groove 411 and press the straw mat into the soil, forming a straw wall on both sides of the planted land. The reciprocating grass seed planting will establish another layer on the edge of the original straw wall to improve the sand prevention effect. At the same time, the straw mat rotating column 412 with the straw mat rolled up is prepared in advance for quick replacement, and sowing is done twice in the vertical and horizontal directions to form a grass grid, providing a suitable environment for seed germination.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

[0043] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A grassland vegetation restoration device, characterized in that: It comprises a driven soil loosening component (1), a sowing component (2), a watering component (3) and a grass grid laying component (4), wherein the grass grid laying component (4) is arranged on the watering component (3), the sowing component (2) is arranged on the front side of the watering component (3), and the driven soil loosening component (1) is arranged on the watering component (3); The driven loosening assembly (1) comprises a motor fixing plate (11) and a front wheel fixing frame (14), wherein the motor fixing plate (11) is arranged on the watering assembly (3), and the front wheel fixing frame (14) is arranged on the sowing assembly (2). A handle (111) is arranged on the side of the motor fixing plate (11), a motor (12) is arranged above the motor fixing plate (11), a motor transmission wheel (121) is arranged on the front side of the motor shaft of the motor (12), a rear wheel (13) is arranged at the bottom of the motor fixing plate (11), a driving shaft (131) is connected between the rear wheels (13), a driving shaft transmission wheel (1311) is arranged at the center of the driving shaft (131), the driving shaft transmission wheel (1311) is connected to the motor transmission wheel (121) via a transmission belt, and a rear wheel transmission wheel (132) is arranged on the side of the rear wheel (13).

2. A grassland vegetation restoration device according to claim 1, characterized in that: A loosening plow shaft sleeve (141) is provided at the front end of the front wheel fixing frame (14), front wheels (15) are provided on both sides of the loosening plow shaft sleeve (141), front wheel driving wheels (151) are provided on the inner wall of the front wheel (15), loosening plows (16) are provided in a linear array at the lower side of the loosening plow shaft sleeve (141), and the driving loosening assembly (1) further comprises a paving wheel (17), and the paving wheel (17) is located at the bottom of the watering assembly (3).

3. The grassland vegetation restoration device according to claim 2, characterized in that: The front side of the bottom of the loosening plow (16) is provided with a pointed plate (161), the rear side of the loosening plow (16) is provided with a flying soil plate (163), the loosening plow (16) is further provided with a soil dividing plate (162), the soil dividing plate (162) is located between the pointed plate (161) and the flying soil plate (163), a soil unloading trough (164) is provided in the middle of the flying soil plate (163), and the soil penetration angle of the pointed plate (161) ranges from 20° to 30°.

4. The grassland vegetation restoration device according to claim 3, characterized in that: The sowing assembly (2) comprises a seed storage box (21) and a sowing shaft (22); a feeding port is provided on the top of the seed storage box (21); a discharge port is provided on the bottom of the seed storage box (21); the sowing shaft (22) rotates in the discharge port of the seed storage box (21); and the front wheel fixing frame (14) is provided on the front side of the seed storage box (21).

5. The grassland vegetation restoration device according to claim 4, characterized in that: Both ends of the sowing shaft (22) are provided with sowing shaft rotating wheels (221), the sowing shaft rotating wheels (221) are located outside the seed storage box (21), the sowing shaft rotating wheels (221) are connected to the front wheel transmission wheel (151) via a transmission belt, and seed grooves (222) are provided in a circular array on the outer wall of the sowing shaft (22).

6. The grassland vegetation restoration device according to claim 5, characterized in that: The watering assembly (3) comprises a water tank (31), a booster cylinder (32) and a liquid storage pipe (34); the water tank (31) is arranged at the rear side of the seed storage box (21); a rotating seat (311) is arranged at the top of the water tank (31); the booster cylinder (32) is arranged at the side of the water tank (31); the liquid storage pipe (34) is arranged inside the water tank (31); one end of the liquid storage pipe (34) is connected to the bottom of the booster cylinder (32); a spray pipe (341) is arranged at the side of the liquid storage pipe (34); the end of the spray pipe (341) is located outside the water tank (31); a liquid suction pipe (342) is arranged at the bottom of the liquid storage pipe (34); and a one-way valve is arranged on the liquid suction pipe (342).

7. The grassland vegetation restoration device according to claim 6, characterized in that: A booster slide plate (33) is provided in the booster cylinder (32), and a slide plate column (331) is provided above the booster slide plate (33). The watering assembly (3) further comprises a booster transmission wheel (35) and an arc-shaped connecting rod (36). The booster transmission wheel (35) rotates on a rotating seat (311), and the booster transmission wheel (35) is connected to the rear wheel transmission wheel (132) via a transmission belt. A connecting column is provided on the surface of the booster transmission wheel (35), and one end of the arc-shaped connecting rod (36) is hinged to the connecting column on the surface of the booster transmission wheel (35), and the other end of the arc-shaped connecting rod (36) is hinged to the top of the slide plate column (331).

8. The grassland vegetation restoration device according to claim 7, characterized in that: The grass grid laying assembly (4) comprises a straw mat box (41), a rebound pressure column (42) and a rolling wheel (43); the straw mat box (41) is arranged on both sides of the water tank (31); the rebound pressure column (42) is located at the bottom of the straw mat box (41); the rolling wheel (43) rotates at the bottom of the rebound pressure column (42); and the bottom of the rolling wheel (43) is lower than the horizontal plane on which the front wheel (15) and the rear wheel (13) travel.

9. The grassland vegetation restoration device according to claim 8, characterized in that: A guide groove (411) is provided below the straw mat box (41), a straw mat rotating column (412) is provided at the center of the straw mat box (41), a rolling wheel shaft (431) is connected between the rolling wheels (43), the rolling wheel shaft (431) rotates on the rebound pressure column (42), the paving wheels (17) are linearly arranged on the rolling wheel shaft (431), and the paving wheels (17) rotate on the rolling wheel shaft (431).

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