Soil leveling patter device and soil leveling mechanism

Abstract

The utility model 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. The utility model further provides a soil leveling mechanism applying the soil leveling patter device. 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 utility model relates to agricultural machinery technical field, especially a flat earth smearing board device. BACKGROUND

[0002] In the agricultural production process, land preparation is an important link. However, the current technology faces two problems: on the one hand, the traditional land preparation machine smearing board is limited by the lower adjustability of agricultural equipment when leveling the land, often difficult to flexibly adapt to diversified terrain characteristics, resulting in unsatisfactory land leveling effect, and unable to fully meet the ideal requirements of agricultural production. This limitation not only affects the land use efficiency, but also may have adverse effects on subsequent seeding, irrigation and crop growth.

[0003] On the other hand, the connection method of the smearing board assembly in the prior art generally adopts direct connection of the smearing board assembly to the harrow wheel assembly through a square tube. The structure design of this connection method is relatively complex, which not only increases material consumption and improves cost 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 repair of the machine during use, increasing the operation difficulty and maintenance cost of farmers. This inconvenience not only reduces the reliability and service life of the machine, but also may affect the continuity and efficiency of agricultural production.

[0004] Therefore, in view of the above challenges, it is particularly important to develop and design a land preparation machine that is more flexible, efficient and easy to maintain, in order to meet the high standard requirements of modern agriculture for land flatness and production efficiency. SUMMARY

[0005] The purpose of the utility model is to provide a flat earth smearing board device, which solves the problem of directly connecting the smearing board assembly to the harrow wheel assembly through a welding frame. This connection method not only wastes materials, but also is time-consuming in the assembly process, and also brings inconvenience to maintenance and repair during use. By installing the smearing board assembly on the horizontal frame through the connecting piece, this connection method makes the structure more simple and simplifies the installation process, not only reduces the maintenance cost, but also makes disassembly more convenient. At the same time, this connection method makes it float with the up and down floating of the horizontal frame, achieving better working cooperation between the two.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a flat land smearing board device, including harrow wheel subassembly and the flat land subassembly of being connected to the rear of harrow wheel subassembly, the flat land subassembly includes the welding frame, the soil breaker and the compacting roller, the welding frame below is fixed with the cross frame, and the soil breaker and the compacting roller are installed to the cross frame along the front and back direction, and the flat land subassembly still includes the smearing board subassembly, and the one end of cross frame is fixedly connected with the smearing board subassembly through the connecting piece, and the smearing board is installed on the smearing board subassembly, and the smearing board is located behind the compacting roller, and the lowest place of smearing board and compacting roller is located on the same horizontal line.

[0007] After adopting the above technical scheme, the utility model has the following advantages:

[0008] In the process of ploughing, harrow wheel subassembly is used to break and loosen the soil first in the front, the soil breaker continues to break the soil, the compacting roller is located behind the soil breaker and is used to compact the soil, reduces the gap, and makes the soil more compact, and the smearing board subassembly is located behind the compacting roller, and the surface of the soil is smoothened by the smearing board.

[0009] The smearing board subassembly is connected with the cross frame through the connecting piece, and the rear side of the cross frame is closer to the smearing board subassembly than the harrow wheel subassembly, and by shortening the length of the connecting piece between the cross frame and the smearing board subassembly, the amount of material used can be directly reduced, thereby reducing the material cost.

[0010] Shortening the distance between the smearing board subassembly and the mounting carrier can reduce the bending moment borne by the connecting part, and the bending moment is directly proportional to the length of the connecting piece, and the longer the connecting piece, the greater the bending moment. By shortening the length of the connecting piece, the bending moment can be effectively reduced to improve the bending moment resistance of the connecting piece, and in use, the smearing board subassembly and the compacting roller are not prone to have obvious height difference due to deformation of the connecting piece, thereby improving the stability and reliability of the whole structure.

[0011] 3, by connecting the smearing board subassembly with the cross frame through the connecting piece, the floating frequency of the smearing board subassembly, the soil breaker and the compacting roller can be kept consistent, so that they can work better in cooperation, and ensure that the soil is evenly treated in the process of breaking, compacting and smoothening.

[0012] Further, the smearing board subassembly includes a lifting rod, the lifting rod is fixedly installed on the cross frame through the connecting piece, the lifting rod is installed on the connecting piece through a lifting structure, and the smearing board is installed on the lifting rod.

[0013] The lifting rod is fixed to the cross frame through the connecting piece, the lifting structure enables the lifting rod to be adjusted in height with the connecting piece, the trowel plate is installed on the lifting rod, and the height of the trowel plate is adjusted by adjusting the height of the lifting rod, and meanwhile, since the connecting piece is connected to the cross frame and the lifting rod respectively, the height of the trowel plate also needs to be adjusted to the corresponding height when the trowel plate assembly is used with the different sizes of the soil crushing roller and the compacting roller to ensure the use effect, the setting of the lifting structure not only enables the trowel plate assembly to be flexibly adjusted in height, but also enables the trowel plate mechanism to be used with the different sizes of the soil crushing roller and the compacting roller, and the applicability of the whole machine is improved.

[0014] Further, the lifting structure comprises a sleeve pipe installed on the connecting piece and a plurality of vertically spaced and uniformly arranged connecting holes on the lifting rod, the sleeve pipe is sleeved outside the lifting rod, the sleeve pipe is connected with a bolt, and the bolt selectively penetrates through one of the connecting holes to fix the sleeve pipe and the lifting rod.

[0015] The sleeve pipe is sleeved outside the lifting rod, the bolt selectively penetrates through any one of the connecting holes on the lifting rod by moving the sleeve pipe, the sleeve pipe and the lifting rod are fixed together by the bolt penetrating through the connecting hole, and the lifting rod is fixed at a suitable position. Since the lifting rod has a plurality of vertically spaced and uniformly arranged connecting holes, the sleeve pipe can move vertically on the lifting rod and be fixed at different heights by the bolt, and when the bolt penetrates through the connecting hole and is fixed, a stable connection is formed between the sleeve pipe and the lifting rod, the stability of the lifting structure is ensured when the height is fixed, and the height adjustment process is simple and fast.

[0016] Further, the sleeve pipe is screw-connected with a jacking screw, and the jacking screw penetrates through the sleeve pipe and jacks against the lifting rod.

[0017] The jacking screw jacks against the lifting rod to provide an additional fixing point for the lifting structure, which helps to reduce the shaking of the lifting rod during lifting and improve the stability of the whole structure. Moreover, the screw-connected jacking screw makes disassembly more convenient.

[0018] Further, the lifting rod is installed with an extension rod, the front end of the trowel plate is hinged to the lifting rod, the position close to the rear end of the trowel plate is hinged to the lower end of the extension rod, the upper end of the extension rod penetrates through the lifting frame and is connected with the lifting frame, and an elastic member is connected between the extension rod and the lifting frame to make the rear end of the trowel plate tightly contact the ground.

[0019] The front end of the trowel plate is hinged to the lifting rod, 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, and the elastic force is provided, so that the trowel plate can float up and down under the action of the elastic member, and can be closely attached to the ground in the case of uneven ground, thereby reducing the gap in the trowel process, automatically adjusting with the unevenness of the ground, and improving the trowel efficiency.

[0020] Further, the land leveling assembly is detachably mounted on the harrow wheel assembly.

[0021] The land leveling assembly is detachably mounted on the harrow wheel assembly, and forms a whole. Since different lands have different land leveling requirements, the land leveling assembly has different sizes, and by replacing land leveling assemblies of different sizes, land leveling of different widths and depths can be achieved. The detachable connection mode improves the applicability of the whole machine, so that it can easily adapt to different land requirements.

[0022] Further, the connection position of the cross frame and the welded frame is located between the soil crushing roller and the compacting roller.

[0023] The connection position of the cross frame and the welded frame is located between the soil crushing roller and the compacting roller, which can enhance the stability of the whole structure. Because the soil crushing roller and the compacting roller generate a large force and vibration during work, the area between them is used as a connection point, which can more effectively disperse and withstand external force and vibration, preventing structural deformation or damage.

[0024] Further, the welded frame includes a support frame detachably mounted on the harrow wheel assembly and a floating frame hinged to one end of the support frame, the support frame is provided with a lower limiting piece and an upper elastic limiting piece, the lower limiting piece is arranged below the floating frame to limit the lower limit position of the floating frame, and the upper elastic limiting piece abuts against the floating frame downward.

[0025] The welded frame is mounted on the harrow wheel assembly, and the floating frame is hinged to the support frame. The welded frame can limit the lower limit position of the land leveling assembly through the lower limiting piece, and the whole land leveling assembly has a space for floating upward through the floating of the upper elastic limiting piece, so as to adapt to the uneven land, and also ensure that the floating frame will not exceed the safe range when adjusting the position, thereby ensuring the stability during work.

[0026] Further, a land leveling structure includes a plurality of the land leveling trowel plate devices described above, the plurality of land leveling trowel plate devices are arranged in sequence along the length direction of the harrow wheel assembly, one cross frame is connected with at least two welded frames, and one trowel plate is connected with at least two trowel plate assemblies.

[0027] By adopting the aforementioned technical solution, the horizontal frame is connected to at least two welded frames, increasing the lateral support of the leveling structure and making the entire structure more stable during operation. Simultaneously, each leveling trowel is connected to at least two trowel assemblies, further enhancing its stability during operation and reducing the possibility of swaying and displacement. Several leveling trowel devices are arranged sequentially along the length of the rake wheel assembly, allowing for the simultaneous leveling of larger areas of land. This improves work efficiency and reduces working time and labor costs. Both the welded frames and trowel assemblies are detachable; when a structure is damaged or requires repair, it can be easily disassembled, improving equipment maintainability and reducing maintenance costs and time.

[0028] Furthermore, a first gap is provided between two adjacent soil-crushing rollers along the length direction of the rake wheel assembly, and 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 along the length direction of the rake wheel assembly, and two adjacent trowels along the length direction of the rake wheel assembly are tightly attached to each other.

[0029] By employing the aforementioned technical solution, the first and second gaps are staggered along the length of the rake assembly, ensuring that no soil is missed when passing through the pulverizing roller and the compacting roller. If the two gaps were aligned, the soil beneath them might be missed due to insufficient treatment. However, the staggered arrangement ensures that all soil passes through at least one pulverizing roller and one compacting roller. If gaps exist between the trowels, the soil beneath these gaps might remain uneven or form small furrows. Positioning two adjacent trowels close together ensures that the soil is completely covered and leveled as it passes through the trowels, resulting in a smoother and more even soil surface. Attached Figure Description

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

[0031] Figure 1 This is a schematic diagram of the structure of a leveling and troweling device according to the present invention;

[0032] Figure 2 This utility model Figure 1 Enlarged view of point A in the image;

[0033] Figure 3 This is a schematic diagram of the structure of a leveling and troweling device according to this utility model from another perspective.

[0034] Figure 4 This utility model Figure 3 Enlarged view of point B in the image;

[0035] Figure 5 This utility model Figure 3 Enlarged view of point C in the image;

[0036] Figure 6 Figure 2 is a side view of the flat earth smearing plate device of the present application. DETAILED DESCRIPTION

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

[0038] The terms "first", "second", and the like (if any) in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence, even if "second" is used before a certain technical feature. It should be understood that in the present application, "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. It should be understood that in the present application, "multiple" means two or more. "And / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, X and / or Y can represent the following three cases: X exists alone, X and Y exist simultaneously, and Y exists alone. The character " / " generally represents an "or" relationship between the front and rear associated objects. "Include X, Y and Z", "include X, Y, Z" means that X, Y and Z are all included, "include X, Y or Z" means that one of X, Y and Z is included, and "include X, Y and / or Z" means that any one or any two or all of X, Y and Z is included.

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

[0040] As shown in Figures 1 to 6 The present application provides a flat earth smearing plate device, which comprises a harrow assembly and a flat earth assembly connected to the rear of the harrow assembly. The flat earth assembly comprises a welded frame 11, a soil breaking roller 12 and a compacting roller 13. A horizontal frame 14 is fixed below the welded frame 11. The soil breaking roller 12 and the compacting roller 13 are installed in the horizontal frame 14 along the front-rear direction. The flat earth assembly further comprises a smearing plate assembly. One end of the horizontal frame 14 close to the compacting roller 13 is fixedly connected with the smearing plate assembly through a connecting piece 15. A smearing plate 21 is installed on the smearing plate assembly. The smearing plate 21 is located behind the compacting roller 13, and the lowest part of the smearing plate 21 and the compacting roller 13 is located on the same horizontal line (as shown by the dotted line). Figure 6 The smearing plate 21 is located behind the compacting roller 13, and the lowest part of the smearing plate 21 and the compacting roller 13 is located on the same horizontal line (as shown by the dotted line).

[0041] It can be understood that during ploughing, the harrow wheel assembly is firstly used to break and loosen the soil in front, the soil breaking roller 12 continues to break the soil, the rolling roller 13 is located behind the soil breaking roller 12 to compact the soil, reduce the voids, and make the soil more compact, and the screed assembly is located behind the rolling roller 13 and uses the screed 21 to smooth the surface of the soil. The screed assembly 2 is connected with the cross frame 14 through the connecting piece 15, the rear side of the cross frame 14 is closer to the screed assembly 2 than the harrow wheel assembly 3, and the length of the connecting piece 15 between the cross frame 14 and the screed assembly 2 can be directly reduced to reduce the amount of material used, thereby reducing the material cost. Shortening the distance between the screed assembly 2 and the installation carrier can reduce the bending moment borne by the connecting part, which is proportional to the length of the connecting piece 15. The longer the connecting piece 15 is, the greater the bending moment is. By shortening the length of the connecting piece 15, the bending moment can be effectively reduced to improve the bending moment resistance of the connecting piece 15, and in use, the height difference between the screed assembly 2 and the rolling roller 13 caused by the deformation of the connecting piece 15 is less likely to occur, thereby improving the stability and reliability of the entire structure. By connecting the screed assembly 2 with the cross frame 14 through the connecting piece 15, the floating frequency of the screed assembly 2 can be kept consistent with that of the soil breaking roller 12 and the rolling roller 13, so that they can work better in cooperation and ensure that the soil is uniformly treated during breaking, compacting and smoothing.

[0042] The screed assembly comprises a lifting rod 22, the lifting rod 22 is fixedly installed on the cross frame 14 through the connecting piece 15, the lifting rod 22 is installed on the connecting piece 15 in a lifting manner through a lifting structure, the screed 21 is installed on the lifting rod 22, the lifting rod 22 is fixed on the cross frame 14 through the connecting piece 15, the lifting structure enables the lifting rod 22 to be adjusted in height with the connecting piece 15 in the height direction, the screed 21 is installed on the lifting rod 22, the height of the screed 21 is adjusted by adjusting the height of the lifting rod 22, and meanwhile, since the connecting piece 15 connects the cross frame 14 and the lifting rod 22 respectively, the position of the connecting piece 15 and the lifting rod 22 can also be adjusted, so that the screed assembly can be used in cooperation with soil breaking rollers 12 and rolling rollers 13 of different sizes. When used in cooperation, the height of the screed 21 also needs to be adjusted to a corresponding height to ensure the use effect. The lifting structure not only enables the screed assembly to be adjusted in height flexibly, but also enables the screed 21 mechanism to cooperate with soil breaking rollers 12 and rolling rollers 13 of different sizes, thereby improving the applicability of the entire machine.

[0043] Specifically, the lifting structure comprises a sleeve 23 installed on the connecting piece 15 and a plurality of vertically and uniformly spaced connecting holes 221 provided on the lifting rod 22, the sleeve 23 is sleeved outside the lifting rod 22, the sleeve 23 is connected with a latch, and the latch passes through one of the connecting holes 221 to fix the sleeve 23 with the lifting rod 22.

[0044] The sleeve 23 is fitted onto the outside of the lifting rod 22. By moving the sleeve 23, the pin can be selectively passed through any one of the connecting holes 221 on the lifting rod 22. The pin passing through the connecting hole 221 fixes the sleeve 23 and the lifting rod 22 together, thus fixing the lifting rod 22 in a suitable position. Since the lifting rod 22 has multiple vertically spaced, evenly spaced connecting holes 221, the sleeve 23 can move vertically along the lifting rod 22 and be fixed at different heights by the pin. When the pin passes through the connecting 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. This also makes adjusting the height simple and quick; the user only needs to pull the pin out of the current connecting hole 221, move it to the desired connecting hole 221 position, and then insert it again.

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

[0046] In addition, a telescopic rod 24 is installed on the lifting rod 22. The lifting rod 22 and the telescopic rod 24 are fixedly connected by a curved limiting rod 25. The limiting rod 25 includes a clearance end 251 fixed to the lifting rod 22 and a limiting end 252 detachably connected to the telescopic rod 24. The front end of the smear 21 is hinged to the lifting rod 22, and the position of the smear 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 limiting end 252 and is telescopically and swayingly connected to the limiting rod 25. An elastic element 241 is connected between the telescopic rod 24 and the lifting frame to keep the rear end of the smear 21 close to the ground.

[0047] By hinged the front end of the trowel 21 to the lifting rod 22 and the rear end to the lower end of the telescopic rod 24, the elastic element 241 is connected between the telescopic rod 24 and the lifting rod 22 to provide elasticity. At this time, the trowel 21 can float up and down under the action of the elastic element 241, so that it can still stick to the ground when the ground is uneven, reducing the gaps in the leveling process. It can automatically adjust according to the unevenness of the ground, thus improving the leveling efficiency.

[0048] Specifically, the leveling component can be detachably installed on the rake wheel component to form a whole. Since different types of land have different land leveling requirements, the leveling component has different sizes. By replacing the leveling component with a different size, land of different widths and depths can be leveled. This detachable connection method improves the applicability of the whole machine, making it easy to adapt to different land requirements.

[0049] Furthermore, the connection point between the frame and the welding frame 11 is located between the soil-crushing roller 12 and the pressing roller 13, which enhances the stability of the entire structure. Because the soil-crushing roller 12 and the pressing roller 13 generate significant forces and vibrations during operation, using the area between them as the connection point can more effectively distribute and withstand external forces and vibrations, preventing structural deformation or damage.

[0050] Specifically, the welding frame 11 includes a support frame 111 detachably mounted on the rake wheel assembly and a floating frame 112 hinged at one end to the support frame 111. The support frame 111 is equipped with a lower limit member 111a and an upper elastic limit member 111b. The lower limit member 111a is located below the floating frame 112 and is used to limit the lower limit position of the floating frame 112. The upper elastic limit member 111b presses down against the floating frame 112. The welding frame 11 can limit the lower limit position of the leveling assembly through the lower limit member 111a. Through the floating of the upper elastic limit member 111b, the entire leveling assembly has space to float upward to adapt to uneven land. At the same time, it also ensures that the floating frame 112 will not exceed the safe range when adjusting its position, thereby ensuring stability during operation.

[0051] In another embodiment, a leveling structure is provided, including a plurality of the above-described leveling trowel 21 devices, which are arranged sequentially along the length of the rake wheel assembly. A horizontal frame 14 is connected to at least two welding frames 11, and a trowel 21 is connected to at least two trowel assemblies.

[0052] To enhance the lateral support of the leveling structure and improve its stability during operation, the transverse frame 14 is connected to at least two welded frames 11. Similarly, each leveling trowel 21 is connected to at least two trowel assemblies, further strengthening its stability and reducing the likelihood of swaying and shifting. Several leveling trowel assemblies 21 are arranged sequentially along the length of the rake wheel assembly, allowing for the simultaneous leveling of larger areas of land. This improves work efficiency and reduces working time and labor costs. Both the welded frames 11 and the trowel assemblies are detachable, allowing for easy disassembly when a structure is damaged or requires repair, improving maintainability and reducing maintenance costs and time.

[0053] Furthermore, 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 trowels 21 along the length direction of the rake wheel assembly are tightly attached to each other.

[0054] Because the first gap 31 and the second gap 32 are staggered along the length of the rake assembly, it ensures that soil is not missed when passing through the pulverizing roller 12 and the compaction roller 13. If the two gaps were aligned, the soil beneath these aligned gaps might be missed due to insufficient treatment. However, the staggered arrangement ensures that all soil passes through at least one pulverizing roller 12 and one compaction roller 13. If gaps exist between the trowels 21, the soil beneath these gaps might remain uneven or form small furrows. Setting two adjacent trowels 21 close together ensures that the soil is completely covered and leveled as it passes through the trowels 21, resulting in a smoother and more even soil surface.

[0055] The aforementioned leveling mechanism also includes at least two wheels 34 for walking. The rake wheel assembly includes a crossbeam 33, and at least two wheels 34 are mounted side by side on the crossbeam 33 along the width direction of the crossbeam 33.

[0056] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A soil leveling and troweling device, characterized in that, The device includes a rake wheel assembly and a leveling assembly connected to the rear of the rake wheel assembly. The leveling assembly includes a welded frame, a soil-crushing roller, and a pressing roller. A cross frame is fixed below the welded frame. The soil-crushing roller and the pressing roller are installed on the cross frame in the front-back direction. The leveling assembly also includes a trowel assembly. One end of the cross frame near the pressing roller is fixedly connected to the trowel assembly via a connector. A trowel is installed on the trowel assembly. The trowel is located behind the pressing roller, and the lowest points of the trowel and the pressing roller are on the same horizontal line.

2. The leveling and troweling device according to claim 1, characterized in that, The trowel assembly includes a lifting rod, which is fixedly installed on the cross frame via a connector. The lifting rod is also movably installed on the connector via a lifting structure, and the trowel is installed on the lifting rod.

3. The leveling and troweling device according to claim 2, characterized in that, The lifting structure includes a sleeve installed on the connector and multiple vertically spaced and evenly arranged connecting holes on the lifting rod. The sleeve is fitted on the outside of the lifting rod and a pin is connected to the sleeve. One of the pins passes through one of the connecting holes to fix the sleeve to the lifting rod.

4. A leveling and troweling device according to claim 3, characterized in that, The sleeve is threaded with a tightening screw, which passes through the sleeve and tightens the lifting rod.

5. A leveling and troweling device according to claim 3, characterized in that, A telescopic rod is installed on the lifting rod. The front end of the squeegee is hinged to the lifting rod, and the position of the squeegee 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 swayingly connected to the lifting frame. An elastic element is connected between the telescopic rod and the lifting frame to keep the rear end of the squeegee in close contact with the ground.

6. A leveling and troweling device according to claim 1, characterized in that, The leveling component can be detachably installed on the rake wheel component.

7. A leveling and troweling device according to claim 1, characterized in that, The connection between the horizontal frame and the welding frame is located between the soil crushing roller and the pressing roller.

8. A leveling and troweling device according to claim 1, characterized in that, The welding frame includes a support frame that is detachably mounted on the rake wheel assembly and a floating frame that is hinged to the support frame at one end. The support frame is equipped with a lower limit member and an upper elastic limit member. The lower limit member is located below the floating frame and is used to limit the lower limit position of the floating frame. The upper elastic limit member presses against the floating frame downward.

9. A leveling mechanism, characterized in that, The device includes several leveling and troweling devices as described in claim 1, which are arranged sequentially along the length of the rake wheel assembly. Each horizontal frame is connected to at least two welding frames, and each trowel is connected to at least two troweling assemblies.

10. A leveling mechanism according to claim 9, characterized in that, A first gap is provided between two adjacent soil-crushing rollers along the length direction of the rake wheel assembly, and 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 along the length direction of the rake wheel assembly, and two adjacent trowels are tightly attached along the length direction of the rake wheel assembly.

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