Soil leveling patter device and soil leveling mechanism

Abstract

The invention discloses a soil flattening patter device which comprises a harrow wheel assembly and a soil flattening assembly connected to the rear portion of the harrow wheel assembly, the soil flattening assembly comprises a welding frame, a soil crushing roller and a pressing roller, a transverse frame is fixed below the welding frame, the soil crushing roller and the pressing roller are installed on the transverse frame in the front-back direction, and the soil flattening assembly further comprises a patter assembly. The end, close to the pressing roller, of the transverse frame is fixedly connected with a patter assembly through a connecting piece, a patter is installed on the patter assembly and located behind the pressing roller, and the lowest position of the patter and the lowest position of the pressing roller are located on the same horizontal line. Compared with the prior art, the installation process is simplified, the maintenance cost is reduced, disassembly is more convenient, meanwhile, due to the connection mode, the transverse frame can float along with up-and-down floating of the transverse frame, and the better work cooperation effect of the transverse frame and the transverse frame is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a soil leveling squeegee device. Background Art

[0002] Land preparation is an important part of agricultural production. However, current technologies face two problems: On the one hand, the traditional land preparation machine shovel is limited by the low adjustability of agricultural machinery and equipment when leveling the land. It is often difficult to flexibly adapt to the diverse terrain features, resulting in unsatisfactory land leveling effects and failing to fully meet the ideal requirements of agricultural production. This limitation not only affects the efficiency of land use, but may also have an adverse impact on subsequent sowing, irrigation and crop growth.

[0003] On the other hand, the connection method of the wiper assembly in the prior art generally adopts a square tube to directly connect the wiper assembly to the rake wheel assembly. The structural design of this connection method is relatively complex, which not only increases material consumption and costs in the production and manufacturing stage, but also consumes more manpower and time in the assembly process. More importantly, the complex structure brings many inconveniences to the maintenance and care of the machine during use, increasing the difficulty of operation and maintenance costs of farmers. This inconvenience not only reduces the reliability and service life of the machine, but may also affect the continuity and efficiency of agricultural production.

[0004] Therefore, in response to the above challenges, it is particularly important to develop and design land preparation machines that are more flexible, efficient and easy to maintain, so as to meet the high standards of modern agriculture for land flatness and production efficiency. Summary of the invention

[0005] The purpose to be achieved by the present invention is to provide a soil leveling shovel device, which solves the problem that the shovel assembly is directly connected to the rake wheel assembly through a welding frame. This connection method not only wastes consumables, but is also time-consuming during the assembly process, and also brings inconveniences in maintenance and servicing during use. The shovel assembly is installed on the horizontal frame through a connecting piece. This connection method makes the structure more concise and simplifies the installation process, which not only reduces maintenance costs but also makes disassembly more convenient. At the same time, this connection method allows it to float with the up and down floating of the horizontal frame, achieving a better working coordination effect between the two.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a soil leveling trowel device, including a rake wheel assembly and a soil leveling assembly connected to the rear of the rake wheel assembly, the soil leveling assembly including a welding frame, a soil crushing roller and a pressing roller, a transverse frame is fixed under the welding frame, the soil crushing roller and the pressing roller are installed on the transverse frame along the front-to-back direction, the soil leveling assembly also includes a trowel assembly, one end of the transverse frame close to the pressing roller is fixedly connected to the trowel assembly through a connecting piece, a trowel assembly is installed with a trowel, the trowel is located behind the pressing roller and the lowest points of the trowel and the pressing roller are located on the same horizontal line.

[0007] After adopting the above technical solution, the present invention has the following advantages:

[0008] During the plowing process, the harrow wheel assembly is first used to break and loosen the soil in the front, the crushing roller continues to break the soil, the pressure roller is located behind the crushing roller and is used to compact the soil, reduce gaps and make the soil more compact, and the shovel assembly is located behind the shovel roller and uses the shovel to smooth the surface of the soil.

[0009] 1. Connect the wiper assembly to the transverse frame through a connector. The rear side of the transverse frame is closer to the wiper assembly than the rake wheel assembly. By shortening the length of the connector between the transverse frame and the wiper assembly, the amount of material used can be directly reduced, thereby reducing material costs.

[0010] 2. Shortening the distance between the wiper assembly and the mounting carrier can reduce the bending moment borne by the connection part. This bending moment is proportional to the length of the connection part. The longer the connection part, the greater the bending moment. By shortening the length of the connection part, the bending moment can be effectively reduced to improve the bending moment resistance of the connection part. During use, it is not easy to cause a significant height difference between the wiper assembly and the pressure roller due to deformation of the connection part, thereby improving the stability and reliability of the entire structure.

[0011] 3. By connecting the squeegee assembly to the cross frame through the connector, the floating frequency of the squeegee assembly, the crushing roller and the pressing roller can be kept consistent, so that they can work together better and ensure that the soil is evenly processed during the crushing, compacting and leveling process.

[0012] Furthermore, the wiper plate assembly includes a lifting rod, which is fixedly mounted on the horizontal frame via a connecting piece, and the lifting rod is liftably mounted on the connecting piece via a lifting structure, and the wiper plate is mounted on the lifting rod.

[0013] By adopting the above-mentioned technical scheme, the lifting rod is fixed to the horizontal frame by a connecting piece, and the lifting structure enables the lifting rod to be adjusted in height with the connecting piece in the height direction. The wiper plate is installed on the lifting rod, and the height of the wiper plate is adjusted by adjusting the height of the lifting rod. At the same time, since the connecting piece is respectively connected to the horizontal frame and the lifting rod, the wiper plate assembly can be used in conjunction with soil crushing rollers and pressure rollers of different sizes by adjusting the position of the connecting piece and the lifting rod. When used in conjunction, the height of the wiper plate also needs to be adjusted to the corresponding height to ensure the use effect. The setting of the lifting structure not only enables the wiper plate assembly to flexibly adjust the height, but also enables the wiper plate mechanism to cooperate with soil crushing rollers and pressure rollers of different sizes, thereby improving the applicability of the entire machine.

[0014] Furthermore, the lifting structure includes a sleeve installed on the connecting piece and a plurality of connecting holes evenly spaced vertically on the lifting rod. The sleeve is sleeved on the outside of the lifting rod. A latch is connected to the sleeve. The latch passes through one of the connecting holes to fix the sleeve to the lifting rod.

[0015] With the above technical solution, the sleeve is sleeved on the outside of the lifting rod. By moving the sleeve, the pin can selectively pass through any connection hole on the lifting rod. The sleeve and the lifting rod are fixed together by the pin passing through the connection hole, thereby fixing the lifting rod in a suitable position. Since there are multiple connection holes with uniform vertical spacing on the lifting rod, the sleeve can be moved vertically on the lifting rod and fixed at different heights by the pin. When the pin passes through the connection hole and is fixed, a stable connection is formed between the sleeve and the lifting rod, ensuring the stability of the lifting structure at a fixed height, and making it simple and quick to adjust the height. The user only needs to pull the pin out of the current connection hole, move it to the desired connection hole position, and then insert it again.

[0016] Furthermore, a tightening screw is threadedly connected to the sleeve, and the tightening screw passes through the sleeve and tightens the lifting rod.

[0017] With the above technical solution, the jacking screw provides an additional fixing point for the lifting structure by tightening the lifting rod, which helps to reduce the shaking of the lifting rod during the lifting process and improve the stability of the entire structure. In addition, the threaded jacking screw makes disassembly more convenient.

[0018] Furthermore, a telescopic rod is installed on the lifting rod, the front end of the wiping board is hinged to the lifting rod, the position of the wiping board near the rear end is hinged to the lower end of the telescopic rod, the upper end of the telescopic rod passes through the lifting frame and is connected to the lifting frame, and an elastic part is connected between the telescopic rod and the lifting frame to make the rear end of the wiping board close to the ground.

[0019] By adopting the above-mentioned technical solution, the front end of the trowel plate is hinged to the lifting rod, and the rear end is hinged to the lower end of the telescopic rod. The elastic member is connected between the telescopic rod and the lifting rod to provide elastic force, so that the trowel plate can float up and down under the action of the elastic member, so that it can still stick to the ground when the land is uneven, reducing the gaps in the leveling process, automatically adjusting according to the unevenness of the land, and improving the efficiency of leveling.

[0020] Furthermore, the soil leveling assembly can be detachably mounted on the rake wheel assembly.

[0021] By adopting the above-mentioned technical solution, the soil leveling component can be detachably installed on the harrow wheel component to form a whole. Since different lands have different land leveling requirements, the soil leveling components have different sizes. By replacing soil leveling components of different sizes, lands of different widths and depths can be leveled. This detachable connection method improves the applicability of the whole machine, allowing it to easily adapt to different land requirements.

[0022] Furthermore, the connection position between the transverse frame and the welding frame is located between the soil crushing roller and the pressing roller.

[0023] With the above technical solution, the connection between the transverse frame and the welding frame is located between the crushing roller and the pressure roller, which can enhance the stability of the entire structure. Because the crushing roller and the pressure roller will generate large forces and vibrations when working, the area between them is used as a connection point, which can more effectively disperse and withstand external forces and vibrations, and prevent structural deformation or damage.

[0024] Furthermore, the welding frame includes a support frame detachably mounted on the rake wheel assembly and a floating frame hinged to the support frame at one end, and a lower limit member and an upper elastic limit member are installed on the support frame. The lower limit member is arranged below the floating frame to limit the lower limit position of the floating frame, and the upper elastic limit member presses the floating frame downward.

[0025] By adopting the above-mentioned technical solution, the welding frame is installed on the rake wheel assembly, and the floating frame is hinged to the supporting frame. The welding frame can limit the lower limit position of the leveling assembly through the lower limit piece. Through the floating of the upper elastic limit piece, the entire leveling assembly has space to float upward to adapt to the uneven land. At the same time, it also ensures that the floating frame will not exceed the safety range when adjusting its position, thereby ensuring stability during the working process.

[0026] Furthermore, a soil leveling structure includes several of the above-mentioned soil leveling shovel devices, which are arranged in sequence along the length direction of the rake wheel assembly, a horizontal frame is connected to at least two welding frames, and a shovel is connected to at least two shovel assemblies.

[0027] With the above-mentioned technical solution, the transverse frame is connected to at least two welding frames, which increases the lateral support of the leveling structure and makes the whole structure more stable during operation. At the same time, each wiper is connected to at least two wiper assemblies, which also enhances the stability of the wiper during operation and reduces the possibility of shaking and deviation. Several leveling wiper devices are arranged in sequence along the length direction of the rake wheel assembly, so that a larger area of ​​land can be leveled at the same time. It improves work efficiency and reduces working time and labor costs. Both the welding frame and the wiper assembly are detachable. When a structure is damaged or needs repair, it can be easily disassembled, which improves the maintainability of the equipment and reduces maintenance costs and time.

[0028] Furthermore, a first gap is provided between two adjacent soil-breaking rollers along the length direction of the rake wheel assembly, a second gap is provided between two adjacent pressing rollers along the length direction of the rake wheel assembly, the first gap and the second gap are staggered in the length direction of the rake wheel assembly, and two adjacent squeegees along the length direction of the rake wheel assembly are closely arranged.

[0029] With the above technical solution, since the first gap and the second gap are staggered in the length direction of the rake wheel assembly, it is ensured that the soil will not be missed when passing through the soil crushing roller and the pressure roller. If the two gaps are aligned, the soil below the two aligned gaps may be missed due to lack of sufficient treatment. However, the staggered setting allows the soil to be processed by at least one soil crushing roller and one pressure roller. If there are gaps between the wiper plates, the soil below these gaps may remain uneven or form small grooves. Setting the two adjacent wiper plates close together ensures that the soil is completely covered and leveled when passing through the wiper plates, making the soil surface smoother and flatter. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the accompanying drawings:

[0031] Figure 1 The structure of a soil leveling screed device of the present invention is shown in FIG. Figure 1 ;

[0032] Figure 2 For the present invention Figure 1 A in the enlarged view;

[0033] Figure 3 The structure of a soil leveling screed device of the present invention is shown in FIG. Figure 2 ;

[0034] Figure 4 For the present invention Figure 3 The enlarged view of point B in the figure;

[0035] Figure 5 For the present invention Figure 3 The enlarged view of point C in the figure;

[0036] Figure 6 The present invention is a side view of a soil leveling screed device. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] The terms "first", "second", etc. (if any) in the specification and claims of the present invention are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish before a certain technical feature, it does not necessarily indicate that "first" is present. It should be understood that in the present invention, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that in the present invention, "multiple" refers to two or more. "And / or" is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "Containing X, Y and Z", "Containing X, Y, Z" means that X, Y, and Z are all included, "Containing X, Y or Z" means that one of X, Y, and Z is included, and "Containing X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0039] The technical solution of the present invention is described in detail with specific embodiments below. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0040] like Figures 1 to 6 As shown, the present invention provides a soil leveling squeegee device, including a rake wheel assembly and a soil leveling assembly connected to the rear of the rake wheel assembly, the soil leveling assembly includes a welding frame 11, a soil crushing roller 12 and a pressing roller 13, a transverse frame 14 is fixed below the welding frame 11, the soil crushing roller 12 and the pressing roller 13 are installed on the transverse frame 14 along the front-to-back direction, the soil leveling assembly also includes a squeegee assembly, one end of the transverse frame 14 close to the pressing roller 13 is fixedly connected to the squeegee assembly through a connecting piece 15, a squeegee 21 is installed on the squeegee assembly, the squeegee 21 is located behind the pressing roller 13, and the lowest points of the squeegee 21 and the pressing roller 13 are located on the same horizontal line (such as Figure 6 dotted line).

[0041] It is understandable that in the process of plowing, the rake wheel assembly is first used to break and loosen the soil in the front, the soil crushing roller 12 continues to break the soil, the pressure roller 13 is located behind the soil crushing roller 12 and is used to compact the soil, reduce gaps, and make the soil more compact, while the squeegee assembly is located behind the pressure roller 13 and uses the squeegee 21 to smooth the surface of the soil. The squeegee assembly 2 is connected to the transverse frame 14 through the connecting member 15. The rear side of the transverse frame 14 is closer to the squeegee assembly 2 than the rake wheel assembly 3. By shortening the length of the connecting member 15 between the transverse frame 14 and the squeegee assembly 2, the amount of material used can be directly reduced, thereby reducing the material cost. Shortening the distance between the squeegee assembly 2 and the mounting carrier can reduce the bending moment borne by the connecting part. This bending moment is proportional to the length of the connecting member 15. The longer the connecting member 15, the greater the bending moment. By shortening the length of the connecting member 15, the bending moment can be effectively reduced to improve the bending moment resistance of the connecting member 15. It is not easy to cause a significant height difference between the wiper assembly 2 and the pressure roller 13 due to the deformation of the connecting member 15 during use, thereby improving the stability and reliability of the entire structure. By connecting the wiper assembly 2 to the cross frame 14 through the connecting member 15, the floating frequency of the wiper assembly 2, the soil crushing roller 12 and the pressure roller 13 can also be kept consistent, so that they can work better together to ensure that the soil is evenly processed during the crushing, compacting and leveling process.

[0042] Among them, the wiper plate assembly includes a lifting rod 22, which is fixedly installed on the transverse frame 14 through a connecting piece 15, and the lifting rod 22 is liftably installed on the connecting piece 15 through a lifting structure, and the wiper plate 21 is installed on the lifting rod 22, and the lifting rod 22 is fixed to the transverse frame 14 through the connecting piece 15. The lifting structure enables the lifting rod 22 to adjust the height with the connecting piece 15 in the height direction, and the wiper plate 21 is installed on the lifting rod 22. By adjusting the height of the lifting rod 22, the height of the wiper plate 21 can be adjusted. At the same time, since the connecting piece 15 is respectively connected to the transverse frame 14 and the lifting rod 22, by adjusting the position of the connecting piece 15 and the lifting rod 22, the wiper plate assembly can also be used in conjunction with soil crushing rollers 12 and pressure rollers 13 of different sizes. When used in conjunction, the height of the wiper plate 21 also needs to be adjusted to the corresponding height to ensure the use effect. The setting of the lifting structure not only enables the wiper plate assembly to flexibly adjust the height, but also enables the wiper plate 21 mechanism to cooperate with soil crushing rollers 12 and pressure rollers 13 of different sizes, thereby improving the applicability of the whole machine.

[0043] Specifically, the lifting structure includes a sleeve 23 installed on the connecting member 15 and a plurality of connecting holes 221 evenly spaced vertically on the lifting rod 22. The sleeve 23 is sleeved on the outside of the lifting rod 22. A latch is connected to the sleeve 23. The latch passes through one of the connecting holes 221 to fix the sleeve 23 to the lifting rod 22.

[0044] The sleeve 23 is sleeved on the outside of the lifting rod 22. By moving the sleeve 23, the pin can selectively pass through any one of the connection holes 221 on the lifting rod 22. The sleeve 23 and the lifting rod 22 are fixed together by the pin passing through the connection hole 221, thereby fixing the lifting rod 22 in a suitable position. Since there are multiple connection holes 221 with uniform vertical intervals on the lifting rod 22, the sleeve 23 can be moved vertically on the lifting rod 22 and fixed at different heights by the pin. When the pin passes through the connection hole 221 and is fixed, a stable connection is formed between the sleeve 23 and the lifting rod 22, ensuring the stability of the lifting structure at a fixed height, and making it simple and quick to adjust the height. The user only needs to pull out the pin from the current connection hole 221, move it to the desired connection hole 221 position, and then insert it again.

[0045] In order to make the entire structure more stable, two tightening screws 231 are threadedly connected to the sleeve 23. The tightening screws 231 pass through the sleeve 23 and tighten the lifting rod 22, thereby providing an additional fixing point for the lifting structure, which helps to reduce the shaking of the lifting rod 22 during the lifting process. The threaded tightening screws 231 make disassembly more convenient.

[0046] In addition, a telescopic rod 24 is installed on the lifting rod 22, and the lifting rod 22 and the telescopic rod 24 are fixedly connected by a bent limit rod 25. The limit rod 25 includes an avoidance end 251 fixed to the lifting rod 22 and a limit end 252 detachably connected to the telescopic rod 24. The front end of the wiping plate 21 is hinged to the lifting rod 22, and the position of the wiping plate 21 near the rear end is hinged to the lower end of the telescopic rod 24. The upper end of the telescopic rod 24 passes through the limit end 252 and is telescopically and swingably connected to the limit rod 25. An elastic member 241 is connected between the telescopic rod 24 and the lifting frame, which is used to make the rear end of the wiping plate 21 close to the ground.

[0047] By hingedly connecting the front end of the wiping board 21 to the lifting rod 22 and the rear end to the lower end of the telescopic rod 24, the elastic member 241 is connected between the telescopic rod 24 and the lifting rod 22 to provide elastic force. At this time, the wiping board 21 can float up and down under the action of the elastic member 241, so that it can still stick to the ground when the land is uneven, reducing the gap in the leveling process, automatically adjusting as the land is uneven, and improving the leveling efficiency.

[0048] Specifically, the soil leveling assembly can be detachably installed on the rake wheel assembly to form a whole. Since different lands have different land leveling requirements, the soil leveling assemblies have different sizes. By replacing soil leveling assemblies of different sizes, lands of different widths and depths can be leveled. This detachable connection method improves the applicability of the whole machine, allowing it to easily adapt to different land requirements.

[0049] Furthermore, the connection position between the frame and the welding frame 11 is located between the soil crushing roller 12 and the pressure roller 13, which can enhance the stability of the entire structure. Because the soil crushing roller 12 and the pressure roller 13 will generate large forces and vibrations when working, using the area between them as a connection point can more effectively disperse and withstand external forces and vibrations, and prevent structural deformation or damage.

[0050] Specifically, the welding frame 11 includes a supporting frame 111 detachably mounted on the rake wheel assembly and a floating frame 112 hinged at one end to the supporting frame 111, and a lower limit member 111a and an upper elastic limit member 111b are installed on the supporting frame 111, the lower limit member 111a is arranged below the floating frame 112, and is used to limit the lower limit position of the floating frame 112, and the upper elastic limit member 111b presses downward against the floating frame 112, and the welding frame 11 can limit the lower limit position of the soil leveling assembly through the lower limit member 111a, and through the floating of the upper elastic limit member 111b, the entire soil leveling assembly has space to float upward to adapt to uneven land, and at the same time, it also ensures that the floating frame 112 will not exceed the safety range when adjusting its position, thereby ensuring stability during the working process.

[0051] In another embodiment, a soil leveling structure is provided, comprising a plurality of the above-mentioned soil leveling trowel plates 21 devices, wherein the plurality of soil leveling trowel plates 21 devices are sequentially arranged along the length direction of the rake wheel assembly, a transverse frame 14 is connected to at least two welding frames 11, and a trowel plate 21 is connected to at least two trowel plate assemblies.

[0052] In order to increase the lateral support of the soil leveling structure and make the whole structure more stable during operation, the transverse frame 14 is connected to at least two welding frames 11. At the same time, each wiper plate 21 is connected to at least two wiper plate assemblies, which also enhances the stability of the wiper plate 21 during operation and reduces the possibility of shaking and deviation. Several soil leveling wiper plate 21 devices are arranged in sequence along the length direction of the rake wheel assembly, so that a larger area of ​​land can be leveled at the same time. The work efficiency is improved and the working time and labor cost are reduced. The welding frame 11 and the wiper plate assembly are both detachable. When a structure is damaged or needs to be repaired, it can be easily disassembled, which improves the maintainability of the equipment and reduces the maintenance cost and time.

[0053] A first gap 31 is provided between two adjacent soil crushing rollers 12 along the length direction of the rake wheel assembly, and a second gap 32 is provided between two adjacent pressing rollers 13 along the length direction of the rake wheel assembly. The first gap 31 and the second gap 32 are staggered in the length direction of the rake wheel assembly, and two adjacent wiping plates 21 along the length direction of the rake wheel assembly are closely arranged.

[0054] Since the first gap 31 and the second gap 32 are staggered in the length direction of the rake wheel assembly, it is ensured that the soil will not be missed when passing through the soil crushing roller 12 and the pressure roller 13. If the two gaps are aligned, the soil below the two aligned gaps may be missed due to lack of sufficient treatment. However, the staggered setting allows the soil to be processed by at least one soil crushing roller 12 and one pressure roller 13. If there are gaps between the wiper plates 21, the soil below these gaps may remain uneven or form small grooves. The close arrangement of the two adjacent wiper plates 21 ensures that the soil is completely covered and leveled when passing through the wiper plates 21, making the soil surface smoother and flatter.

[0055] The soil leveling mechanism further comprises at least two wheels 34 for traveling, the rake wheel assembly comprises a cross beam 33 , and at least two wheels 34 are installed side by side on the cross beam 33 along the width direction of the cross beam 33 .

[0056] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A soil leveling screed device, characterized in that: It includes a rake wheel assembly and a soil leveling assembly connected to the rear of the rake wheel assembly, the soil leveling assembly includes a welding frame, a soil crushing roller and a pressing roller, a transverse frame is fixed under the welding frame, the soil crushing roller and the pressing roller are installed on the transverse frame along the front-to-back direction, the soil leveling assembly also includes a wiping plate assembly, one end of the transverse frame close to the pressing roller is fixedly connected to the wiping plate assembly through a connecting piece, a wiping plate is installed on the wiping plate assembly, the wiping plate is located behind the pressing roller, and the lowest points of the wiping plate and the pressing roller are located on the same horizontal line.

2. A soil leveling screed device according to claim 1, characterized in that: The wiper plate assembly comprises a lifting rod, which is fixedly mounted on the horizontal frame through a connecting piece, the lifting rod is liftably mounted on the connecting piece through a lifting structure, and the wiper plate is mounted on the lifting rod.

3. A soil leveling screed device according to claim 2, characterized in that: The lifting structure includes a sleeve installed on the connecting piece and a plurality of connecting holes evenly spaced vertically on the lifting rod. The sleeve is sleeved on the outside of the lifting rod. A latch is connected to the sleeve. The latch passes through one of the connecting holes to fix the sleeve to the lifting rod.

4. A soil leveling screed device according to claim 3, characterized in that: A tightening screw is threadedly connected to the casing, and the tightening screw passes through the casing and tightens the lifting rod.

5. A soil leveling screed device according to claim 3, characterized in that: A telescopic rod is installed on the lifting rod, the front end of the wiping plate is hinged to the lifting rod, the position of the wiping plate near the rear end is hinged to the lower end of the telescopic rod, the upper end of the telescopic rod passes through the lifting frame and is telescopically and swingably connected to the lifting frame, and an elastic part is connected between the telescopic rod and the lifting frame to make the rear end of the wiping plate close to the ground.

6. A soil leveling screed device according to claim 1, characterized in that: The soil leveling assembly can be detachably mounted on the harrow wheel assembly.

7. A soil leveling screed device according to claim 1, characterized in that: The connection position of the transverse frame and the welding frame is located between the soil crushing roller and the pressing roller.

8. A soil leveling screed device according to claim 1, characterized in that: The welding frame includes a supporting frame detachably mounted on the rake wheel assembly and a floating frame hinged to the supporting frame at one end, a lower limit member and an upper elastic limit member are installed on the supporting frame, the lower limit member is arranged below the floating frame to limit the lower limit position of the floating frame, and the upper elastic limit member presses downward against the floating frame.

9. A soil leveling mechanism, characterized in that: It comprises a plurality of soil leveling trowel devices as claimed in claim 1, wherein the plurality of soil leveling trowel devices are sequentially arranged along the length direction of the rake wheel assembly, one of the transverse frames is connected to at least two welding frames, and one trowel is connected to at least two trowel assemblies.

10. A soil leveling mechanism according to claim 8, characterized in that: A first gap is provided between two adjacent soil-breaking rollers along the length direction of the rake wheel assembly, a second gap is provided between two adjacent pressing rollers along the length direction of the rake wheel assembly, the first gap and the second gap are staggered in the length direction of the rake wheel assembly, and two adjacent smear plates along the length direction of the rake wheel assembly are closely arranged.

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