CN115152501B

CN115152501B - High-flatness film covering device for preventing weed growth

Info

Publication number: CN115152501B
Application number: CN202210837186.0A
Authority: CN
Inventors: 李玲; 崔振德; 邓干然; 何冯光; 李国杰; 郑爽; 覃双眉
Original assignee: Institute of Agricultural Machinery of CATAS
Current assignee: Institute of Agricultural Machinery of CATAS
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2023-03-21
Anticipated expiration: 2042-07-15
Also published as: CN115152501A

Abstract

The invention discloses a high-flatness film covering device for preventing weeds from growing, which belongs to the technical field of agricultural instruments and comprises a roller frame, a roller groove and a film roller, wherein the bottom of the roller frame is fixedly connected with an electric cylinder; through the mutual cooperation between electric cylinder, install bin and the leveling mechanism, can carry out the leveling operation to the soil face in its the place ahead in the plastic film laying process, and can adjust the position height of leveling mechanism according to actual need to can effectively avoid the plastic film mulching in-process to take place to violently cut the circumstances of rubbing and lead to the plastic film to damage with sharp objects such as bellied soil mass to take place, also can avoid the soil face to take place than the relatively poor circumstances of roughness of laying back plastic film than unevenness simultaneously, make the plastic film can level more and lay smoothly and steadily.

Description

High-flatness film covering device for preventing weed growth

Technical Field

The invention relates to the technical field of agricultural instruments, in particular to a high-flatness film covering device for preventing weed growth.

Background

In the planting process of crops, the growth speed of the crops can be improved due to the appropriate environment and sufficient nutrition, the growth speed of weeds can be accelerated, black or white mulching films can be paved on soil layers of a planting area as required by crop workers in order to inhibit the growth of the weeds, the growth of the weeds is inhibited by limiting illumination or adjusting soil temperature, and therefore the weeds can be effectively eliminated on the premise of not using pesticides.

In the mulching process, an operator needs to install a film roller on a roller frame provided with a driving wheel, and then the film roller is pulled to move to realize the mulching operation on the soil, but due to the fact that the surface flatness of the soil to be coated is poor, the mulching film may be scratched and rubbed with the protruding soil blocks in the mulching process, so that the flatness of the laid mulching film is poor, and when the mulching film is severely scratched and rubbed with the protruding sharp soil blocks, the mulching film may be damaged, and the mulching film laying work is not facilitated.

Disclosure of Invention

The present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a high-flatness mulching device for preventing growth of weeds.

In order to achieve the purpose, the invention provides the following technical scheme: a high-flatness film covering device for preventing weeds from growing comprises a roller frame, a roller groove and a film roller, wherein the bottom of the roller frame is fixedly connected with an electric cylinder, the bottom of the electric cylinder is fixedly connected with an installation box, the outside of the installation box is provided with a flattening mechanism, the flattening mechanism comprises a driving motor, the driving motor is fixedly installed inside the installation box, the outside of the driving motor is in transmission connection with a reciprocating lead screw, the outside of the reciprocating lead screw is in transmission connection with a connecting block, the outside of the connecting block is fixedly connected with a flattening plate, the bottom of the flattening plate is fixedly connected with a vibration motor, the outer surface of the flattening plate is fixedly connected with a supporting plate, the outside of the roller frame is provided with a guide frame, the guide frame comprises two side plates, the two side plates are symmetrically and fixedly installed on two sides of the roller frame, a plurality of guide rods are rotatably connected between the side plates, the outside of the side plates is provided with a soil covering mechanism, the soil covering mechanism comprises an installation block, the installation block is fixedly connected to the outer surfaces of the side plates, the top of the installation block is rotatably connected with a swing rod, the bottom of the swing rod is fixedly connected with a soil covering plate, and an adjustment assembly is arranged inside the installation block;

the adjusting part comprises a rotating column, the rotating column is rotatably connected to the top of the mounting block, a connecting spring is fixedly connected to the inner side of the rotating column, a fixing block is fixedly connected to the outside of the connecting spring, a pull rope is fixedly connected to the outside of the fixing block, a pull rod is slidably connected to the inner side of the rotating column, a wire guide groove is formed in the inner side of the rotating column, and a plurality of fixing grooves are formed in the inner side of the mounting block.

As a still further scheme of the invention: the electric cylinders are symmetrically arranged at two ends of the top of the mounting box, so that the mounting box can keep a stable motion state when the electric cylinders are started to adjust the height of the mounting box.

As a still further scheme of the invention: the reciprocating screw rod is rotatably connected with the inner side face of the installation box, the connecting block is slidably connected with the inner side face of the installation box, the supporting plate is slidably connected with the inner side face of the installation box, the connecting position of the connecting block on the leveling plate and the connecting position of the supporting plate on the leveling plate are symmetrically arranged at the two ends of the surface of the leveling plate, so that the supporting plate is the same as the horizontal movable distance value of the connecting block, a stable connection supporting effect can be achieved on the leveling plate, and the stability of the leveling plate during movement in the horizontal direction is good.

As a still further scheme of the invention: the leveling plate comprises a connecting portion, the connecting portion is arranged at the topmost portion of the leveling plate, a pushing portion is arranged below the connecting portion, a leveling portion is arranged at the bottom of the pushing portion, the connecting portion and the leveling portion are arranged horizontally, and the bottom end of the pushing portion is arranged in a downward inclined mode.

As a still further scheme of the invention: the number of guide bars is six, all the guide bars are connected between two lateral plates in sequence from top to bottom, and mulching films on the film rollers penetrate through the guide bars in a staggered mode, so that a good guiding effect can be achieved on continuous film feeding of the mulching films.

As a still further scheme of the invention: the utility model discloses a plastic film mulching machine, including earthing mechanism, installation piece, pendulum rod, earthing board, guide bar, the pendulum rod is connected with the surface fixed who rotates the post, the pendulum rod rotates with the installation piece through rotating the post to be connected, earthing mechanism's quantity is two sets of, and establishes respectively in two curb plate outsides, the position of earthing board, specification all correspond with the guide bar of below, and under the guide effect of below guide bar, the plastic film can steadily cover on the soil surface, and under the guide effect of below guide bar, the biggest inclination of this department plastic film is 10 for earthing mechanism can carry out the earthing to the plastic film after laying well and compress tightly.

As a still further scheme of the invention: the fixed block and the inner side face sliding connection who rotates the post, the one end and the fixed block fixed connection of stay cord, the bottom fixed connection of wire casing and pull rod is passed to its other end, the quantity of fixed slot is six at least, and waits angular distribution around rotating the post for the rotation precision value of pendulum rod is higher, can satisfy the needs of actually laying work.

As a still further scheme of the invention: the soil covering plate comprises a collecting part, the collecting part is arranged on one side of the soil covering plate, which is far away from the other soil covering plate, a flow guide part is arranged on one side of the collecting part, which is close to the other soil covering plate, the bottom of the collecting part and the flow guide part is provided with an arc notch, the arc notch is gradually and upwards improved from the collecting part to the flow guide part, so that the soil covering plate can be greatly prevented from being scratched with the surface of the mulching film, namely, the collected soil in the film covering area is collected through the collecting part and is conveyed through the flow guide part, the collected soil can be conveyed to the side of the mulching film to be stably compressed, and under the action of the arc notch, the position height of the collecting part is in a lower position relative to the flow guide part, so that the scratching between the soil covering plate and the surface of the mulching film can be effectively reduced, or the scratching is slight in spite of scratching, and damage to the mulching film can not be caused.

Compared with the prior art, the invention has the beneficial effects that:

1. this a high roughness tectorial membrane device for preventing weeds from growing, through electric cylinder, mutually support between install bin and the levelling mechanism, can level and smooth the operation to the soil face in its the place ahead in the plastic film laying process, and can highly adjust the position of levelling mechanism according to actual need, thereby can effectively avoid among the plastic film mulching process and sharp objects such as bellied clod to take place acutely to cut to scratch and lead to the condition of plastic film damage to take place, also can avoid the relatively poor condition of the roughness that the unevenness of soil face leads to laying back plastic film to take place simultaneously, make the plastic film can level more and smoothly and lay steadily.

2. This a high roughness tectorial membrane device for preventing weeds growth, through earthing mechanism's use, can carry out the earthing gland to the plastic film edge after laying automatically at the plastic film laying process to no longer need the manual earthing of following, make the tectorial membrane device functional better in the in-service use process, can satisfy the needs of in-service use condition.

Drawings

FIG. 1 is a schematic structural view of a film roll according to the present invention in an uninstalled state;

FIG. 2 is a schematic structural view showing a mounting state of the film roll according to the present invention;

FIG. 3 is a partial cross-sectional structural schematic view of the present invention;

FIG. 4 is a schematic view of the structure of the guide frame of the present invention;

FIG. 5 is a schematic view of the soil covering mechanism of the present invention;

FIG. 6 is a schematic view of the connection relationship between the installation box and the leveling plate according to the present invention;

FIG. 7 is a schematic view of the internal structure of the leveling plate according to the present invention;

FIG. 8 is a partial sectional view of the soil covering mechanism of the present invention;

FIG. 9 is a schematic view of a connection structure of a portion of the structure shown in FIG. 8 according to the present invention;

FIG. 10 is an enlarged view of the structure at A in FIG. 9 according to the present invention.

The corresponding relationship between the reference numbers of the figures and the names of the components in the figures is as follows:

1. a roller frame; 2. a roller groove; 3. a film roll; 4. an electric cylinder; 5. installing a box; 6. a leveling mechanism; 61. a drive motor; 62. a reciprocating screw rod; 63. connecting blocks; 64. leveling the plate; 641. a connecting portion; 642. a pushing section; 643. a flattening part; 65. a vibration motor; 66. a support plate; 67. a guide frame; 671. a side plate; 672. a guide bar; 7. a soil covering mechanism; 71. mounting blocks; 72. a swing rod; 73. a soil covering plate; 731. a collecting section; 732. a flow guide part; 733. a cambered surface notch; 74. an adjustment assembly; 741. rotating the column; 742. a connecting spring; 743. a fixed block; 744. pulling a rope; 745. a pull rod; 746. a wire guide groove; 747. and fixing the grooves.

Detailed Description

Please refer to fig. 1 to 10: the utility model provides a high roughness tectorial membrane device for preventing weeds from growing, including roller frame 1, roller groove 2, membrane roller 3, roller groove 2 on the roller frame 1 is provided with two sets ofly, just so can be in the working process reserve plastic film of portable one roll, thereby can carry out the change of plastic film on the spot after the previous one roll was used up, make tectorial membrane device's actual practicality better, roller frame 1's bottom fixedly connected with electric cylinder 4, electric cylinder 4's bottom fixedly connected with install bin 5, electric cylinder 4's quantity is two, two electric cylinder 4 symmetries set up the both ends at install bin 5 top, make electric cylinder 4 start-up 5 position height of install bin carry out the accommodation process, install bin 5 can keep the stationary motion state.

The outside of installing bin 5 is provided with leveling mechanism 6, leveling mechanism 6 includes driving motor 61, driving motor 61 fixed mounting is in the inside of installing bin 5, driving motor 61's outside transmission is connected with reciprocal lead screw 62, reciprocal lead screw 62's outside transmission is connected with connecting block 63, the outside fixedly connected with levelling plate 64 of connecting block 63, the bottom fixedly connected with vibrating motor 65 of levelling plate 64, the outer fixed surface of levelling plate 64 is connected with backup pad 66, the outside of roller frame 1 is provided with leading truck 67.

Reciprocating screw 62 rotates with the medial surface of installing bin 5 to be connected, the medial surface sliding connection of connecting block 63 and installing bin 5, the medial surface sliding connection of backup pad 66 and installing bin 5, and the hookup location of connecting block 63 on leveling plate 64 sets up the both ends on leveling plate 64 surface with the hookup location symmetry of backup pad 66 on leveling plate 64, make backup pad 66 the same with the horizontal direction movable distance value of connecting block 63, can play the stable connection supporting role to leveling plate 64, make the stability of leveling plate 64 when carrying out the horizontal direction motion better.

The leveling plate 64 comprises a connecting part 641, the connecting part 641 is arranged at the topmost part of the leveling plate 64, a pushing part 642 is arranged below the connecting part 641, a pressing part 643 is arranged at the bottom of the pushing part 642, the connecting part 641 and the pressing part 643 are horizontally arranged, and the bottom end of the pushing part 642 is obliquely downwards arranged, so that soil pushed and accumulated on the front side of the pushing part 642 can be driven to move towards the bottom of the pressing part 643 under the guiding action of the pushing part 642 during the moving process of the leveling plate 64, and the soil pushed by the pushing part 642 can flow downwards to a pit along the inclined surface of the pushing part 642 at the pit to fill the pit; in the using process, the reciprocating screw rod 62 is driven to rotate after being started by the driving motor 61, the reciprocating screw rod 62 drives the connecting block 63 to horizontally reciprocate in the rotating process, the flat plate 64 can be driven to horizontally reciprocate in the horizontally reciprocating process of the connecting block 63, the flat plate 64 can also horizontally and vertically reciprocate in the linear moving process along with the roller frame 1, and therefore the more protruding redundant soil can be continuously pushed forwards through the pushing part 642, the redundant soil can be continuously conveyed to the two sides of the area to be covered in the pushing process, meanwhile, under the flat pressing effect of the flat pressing part 643, the position of the pushed part 642 after being moved can be flattened again, and the flatness of the soil surface is better after the flat plate 64 is moved.

The guide frame 67 includes two curb plates 671, and two curb plate 671 symmetry fixed mounting are in the both sides of roller frame 1, rotate between the curb plate 671 and are connected with a plurality of guide bars 672, and the quantity of guide bar 672 is six, and all guide bars 672 top-down connect gradually between two curb plates 671, and the crisscross a plurality of guide bars 672 that pass of plastic film on the membrane roller 3 to can play fine guide effect to the continuation of plastic film of sending.

Please refer to fig. 1 to 10: the soil covering mechanism 7 is arranged outside the side plate 671, the soil covering mechanism 7 comprises an installation block 71, the installation block 71 is fixedly connected to the outer surface of the side plate 671, the top of the installation block 71 is rotatably connected with a swing rod 72, the bottom of the swing rod 72 is fixedly connected with a soil covering plate 73, and an adjusting assembly 74 is arranged inside the installation block 71.

The adjusting assembly 74 comprises a rotating column 741, the rotating column 741 is rotatably connected to the top of the mounting block 71, a connecting spring 742 is fixedly connected to the inner side surface of the rotating column 741, a fixing block 743 is fixedly connected to the outside of the connecting spring 742, a pull rope 744 is fixedly connected to the outside of the fixing block 743, a pull rod 745 is slidably connected to the inner side surface of the rotating column 741, a guide groove 746 is formed in the inner side surface of the rotating column 741, the fixing block 743 is slidably connected to the inner side surface of the rotating column 741, one end of the pull rope 744 is fixedly connected to the fixing block 743, the other end of the pull rope passes through the guide groove 746 to be fixedly connected to the bottom of the pull rod 745, the number of the fixing grooves 747 is at least six, and the fixing grooves are distributed around the rotating column 741 at equal angles, so that the rotation precision of the swing rod 72 is high, the requirement of actual laying work can be met, and a plurality of fixing grooves 747 are formed in the inner side surface of the mounting block 71; in the use, the operator upwards pulls the pull rod 745, the pull rod 745 can drive one end of the pull rope 744 to move in the upward movement process, under the guiding action of the wire guide 746, the other end of the pull rope 744 can pull the fixing block 743, so that the fixing block 743 moves to withdraw from the inside of the fixing groove 747 and enter the inside of the rotating column 741, so that the fixing block 743 is no longer matched with the fixing groove 747 to limit the rotation of the rotating column 741, at the moment, the operator can directly rotate the rotating column 741, so that the rotating column 741 rotates to drive the soil covering plate 73 to rotate for angle adjustment, so that the soil covering plate 73 can adjust the inclination angle according to the actual film covering condition in the actual use process, and thus, the conveying angle and the covering position of soil can be adjusted.

The swing rod 72 is fixedly connected with the outer surface of the rotating column 741, the swing rod 72 is rotatably connected with the mounting block 71 through the rotating column 741, the number of the soil covering mechanisms 7 is two, the soil covering mechanisms are respectively arranged outside the two side plates 671, the positions and specifications of the soil covering plates 73 correspond to the guide rods 672 at the bottom, under the guide effect of the guide rods 672 at the bottom, the mulching film can be stably covered on the soil surface, and under the guide effect of the guide rods 672 at the bottom, the maximum inclination angle of the mulching film at the position is 10 degrees, so that the soil covering mechanisms 7 can well cover and compress the paved mulching film.

The soil covering plate 73 comprises a collecting part 731, the collecting part 731 is arranged on one side of the soil covering plate 73, which is far away from the other soil covering plate 73, a flow guide part 732 is arranged on one side of the collecting part 731, which is close to the other soil covering plate 73, a cambered notch 733 is arranged at the bottom of the collecting part 731 and the flow guide part 732, and the cambered notch 733 is gradually raised upwards from the collecting part 731 to the flow guide part 732, so that the soil covering plate 73 can be greatly prevented from being scratched on the surface of the mulching film in the soil covering process, namely, the collected soil at the outer side of the film covering area is collected by the collecting part 731 and is conveyed by the flow guide part 732, so that the collected soil can be conveyed to the side of the mulching film to be stably compressed, and in the process, the height of the collecting part 731 is lower than that of the flow guide part 732 under the action of the cambered notch 733, so that the scraping of the soil covering plate 73 and the surface of the mulching film can be effectively reduced, or the collected soil can be slightly scratched even if the scraping occurs, and the damage to the mulching film can not be caused.

The working principle is as follows: before using, the operator places membrane roller 3 on roller frame 1 to accept through roller slot 2 and support it, then with the crisscross a plurality of guide bar 672 that pass of one end of plastic film on the membrane roller 3, and compress tightly the initial department in waiting to tectorial membrane region with earth this end, then the operator controls electric cylinder 4 to start stretching out and drive install bin 5 and move down, install bin 5 moves down and drives levelling plate 64 and move down, thereby can adjust the position height of levelling plate 64 according to actual need, later the operator pulls roller frame 1 to move and begins to carry out tectorial membrane work.

In the film covering process, the roller frame 1 moves to drive the film roller 3 to move, the film roller 3 continuously rotates to send a film under the dragging action of a mulching film, an operator controls the driving motor 61 and the vibration motor 65 to start in the film covering process, the driving motor 61 drives the reciprocating screw rod 62 to rotate after starting, the reciprocating screw rod 62 drives the connecting block 63 to horizontally reciprocate in the rotating process, the connecting block 63 drives the leveling plate 64 to horizontally reciprocate in the horizontally reciprocating process, so that the leveling plate 64 can also horizontally and vertically reciprocate in the linear moving process along with the roller frame 1, and the protruded redundant soil can be continuously pushed forwards through the pushing part 642, and can be continuously conveyed to two sides of an area to be covered in the pushing process;

under the vibration effect of the vibration motor 65, the whole leveling plate 64 vibrates therewith, so that soil in contact with the surface of the leveling plate 64 can be driven to vibrate, gaps among soil particles at the position of the pushing part 642 are gradually reduced, upper-layer soil can flow downwards, and thus when soil meets hollow positions in the pushing process of the pushing part 642, the soil can be automatically filled, and under the flat pressing effect of the flat pressing part 643, the soil surface of an area where the leveling plate 64 passes can be in a relatively flat state, so that in the film covering process, relatively strong scratch is not prone to happening between a mulching film laid at the rear and the soil surface of the area to be covered, the probability that the mulching film is damaged in the covering process can be greatly reduced, and the mulching film can be smoothly and stably laid.

In the mulching process, the soil pushed to both sides by the front pushing part 642 is collected through the collecting part 731 on the soil covering plate 73, the collected soil is conveyed to the surface of the well-covered mulching film to be pressed and covered on the edge of the mulching film under the flow guiding effect of the flow guiding part 732 on the soil covering plate 73, and the flow guiding part 732 and the surface of the mulching film can be greatly prevented from being violently rubbed under the matching effect of the cambered notch 733, so that the mulching film cannot be damaged in the soil covering process;

in the laminating process, an operator can adjust the soil diversion direction of the soil covering plate 73 according to actual needs, the operator pulls the pull rod 745 upwards at the moment, the pull rod 745 can drive one end of the pull rope 744 to move in the upward movement process, under the guiding action of the guide groove 746, the other end of the pull rope 744 can pull the fixed block 743, the fixed block 743 is enabled to move out of the fixed groove 747 and enter the rotating column 741, the fixed block 743 is enabled not to be matched with the fixed groove 747 to limit the rotation of the rotating column 741, the operator can directly rotate the rotating column 741 at the moment, the rotating column 741 is enabled to rotate to drive the soil covering plate 73 to rotate for angle adjustment, the soil covering plate 73 can be enabled to adjust the inclination angle according to the actual laminating condition in the actual use process, the conveying angle and the covering position of the soil can be adjusted, and the requirement of actual laminating work can be met.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.

Claims

1. The utility model provides a high roughness tectorial membrane device for preventing weeds growth, includes roller frame (1), roller groove (2), membrane roller (3), its characterized in that, the bottom fixedly connected with electric cylinder (4) of roller frame (1), the bottom fixedly connected with install bin (5) of electric cylinder (4), the outside of install bin (5) is provided with levelling mechanism (6), levelling mechanism (6) are including driving motor (61), driving motor (61) fixed mounting is in the inside of install bin (5), the outside transmission of driving motor (61) is connected with reciprocal lead screw (62), the outside transmission of reciprocal lead screw (62) is connected with connecting block (63), the outside fixedly connected with levelling plate (64) of connecting block (63), the bottom fixedly connected with vibrating motor (65) of levelling plate (64), the surface fixed connection of levelling plate (64) has backup pad (66), the outside of roller frame (1) is provided with guide frame (67), guide frame (67) includes two curb plates (671), two the symmetry fixed mounting of curb plate (64) is in the roller frame (671), the outside guide frame (671) both sides are connected with a plurality of curb plate (671) and the earthing mechanism (671) is provided with the earthing rod (671) rotation, the soil covering mechanism (7) comprises an installation block (71), the installation block (71) is fixedly connected to the outer surface of the side plate (671), the top of the installation block (71) is rotatably connected with a swing rod (72), the bottom of the swing rod (72) is fixedly connected with a soil covering plate (73), and an adjusting assembly (74) is arranged inside the installation block (71);

the adjusting part (74) is including rotating post (741), pendulum rod (72) is connected with the fixed surface of rotation post (741), pendulum rod (72) rotates through rotating post (741) and installation piece (71) and is connected, it rotates at the top of installation piece (71) to rotate post (741), the medial surface fixedly connected with connecting spring (742) of rotation post (741), the outside fixedly connected with fixed block (743) of connecting spring (742), the outside fixedly connected with stay cord (744) of fixed block (743), the medial surface sliding connection who rotates post (741) has pull rod (745), wire guide (746) have been seted up to the medial surface of rotation post (741), the one end and the fixed block (743) fixed connection of stay cord (744), its other end pass wire guide (746) and the bottom fixed connection of pull rod (745), a plurality of fixed slots (747) have been seted up to the medial surface of installation piece (71).

2. The high-flatness film covering device for preventing growth of weeds in accordance with claim 1, wherein the number of said electric cylinders (4) is two, and two said electric cylinders (4) are symmetrically arranged at two ends of the top of the installation box (5).

3. The high-flatness film covering device for preventing weeds from growing according to claim 2, wherein the reciprocating screw rod (62) is rotatably connected with the inner side surface of the installation box (5), the connecting block (63) is slidably connected with the inner side surface of the installation box (5), the supporting plate (66) is slidably connected with the inner side surface of the installation box (5), and the connecting position of the connecting block (63) on the flat plate (64) and the connecting position of the supporting plate (66) on the flat plate (64) are symmetrically arranged at two ends of the surface of the flat plate (64).

4. The high-flatness film covering device for preventing growth of weeds in accordance with claim 3, wherein said leveling plate (64) includes a connection portion (641), said connection portion (641) is disposed at the topmost portion of the leveling plate (64), a pushing portion (642) is disposed below said connection portion (641), a pressing portion (643) is disposed at the bottom of said pushing portion (642), said connection portion (641) and said pressing portion (643) are horizontally disposed, and the bottom end of said pushing portion (642) is inclined downward.

5. The high-flatness film covering device for preventing weed growth according to claim 4, wherein the number of the guide bars (672) is six, and all the guide bars (672) are connected between the two side plates (671) in sequence from top to bottom.

6. The high-flatness mulching device for preventing growth of weeds of claim 5, wherein the number of the soil covering mechanisms (7) is two, and the soil covering mechanisms are respectively arranged outside the two side plates (671), and the position and the specification of the soil covering plate (73) correspond to the lowest guide rod (672).

7. The mulching device with high flatness for preventing the growth of weeds as claimed in claim 6, wherein said fixing block (743) is slidably connected to the inner side of the rotation post (741), and said fixing grooves (747) are at least six in number and equally angularly distributed around the rotation post (741).

8. The high-flatness mulching device for preventing growth of weeds of claim 7, wherein the soil covering plate (73) comprises a collecting part (731), the collecting part (731) is arranged on one side of the soil covering plate (73) far away from the soil covering plate (73) on the other side, a flow guide part (732) is arranged on one side of the collecting part (731) close to the soil covering plate (73) on the other side, cambered notches (733) are arranged at the bottoms of the collecting part (731) and the flow guide part (732), and the cambered notches (733) gradually increase upwards from the collecting part (731) to the flow guide part (732).