Soil covering device and planter

Abstract

The utility model relates to a soil covering device and a planter, the soil covering device comprises two soil covering parts, the two soil covering parts are horizontally and symmetrically arranged, and the two soil covering parts are used for driving soil to move towards the space between the two soil covering parts from the horizontal direction so as to realize soil covering; wherein the soil covering component comprises a soil pushing part, a soil covering part and a soil covering part, and the soil pushing part is used for pushing soil during moving; the first driving part is connected with the bulldozing part and used for driving the bulldozing part to move; the first driving piece is arranged on the lifting piece; the second driving part is connected with the lifting part and used for driving the lifting part to move up and down so as to drive the first driving part and the bulldozing part to move up and down; the second driving part is arranged on the rack, and the lifting part is arranged on the rack and can move up and down along the rack.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of earthing device, in particular to an earthing device. BACKGROUND

[0002] At present, with the rapid development of industrialization of our country, the environmental problem brought cannot be underestimated, and the land desertification problem among them is more prominent. But the earthing link after planting trees is often not valued at present, leading to the difficulty of plant root survival, and the desertification cannot be significantly improved.

[0003] Most of the existing earthing devices do not have the ability of autonomous operation, usually rely on the machine carried to move forward to realize the collection of soil, or only have a single opening and closing movement, which is not conducive to the uniformity and integrity of soil covering. UTILITARY MODEL CONTENT

[0004] In order to solve the above problems, the purpose of the utility model is to provide an earthing device, which solves the technical problem that most of the existing earthing devices do not have the ability of autonomous operation, usually rely on the machine carried to move forward to realize the collection of soil, or only have a single opening and closing movement, which is not conducive to the uniformity and integrity of soil covering.

[0005] The embodiment of the utility model adopts the following technical scheme:

[0006] Firstly, the embodiment of the utility model provides an earthing device, which comprises:

[0007] Two earthing components, two said earthing components are horizontally symmetrical, two said earthing components are used to drive mud from the horizontal direction to move towards both of them to realize earthing;

[0008] Among them, the earthing component comprises:

[0009] The earth pushing part is used to push the mud when moving;

[0010] The first driving part is connected with the earth pushing part, which is used to drive the earth pushing part to move;

[0011] The lifting part, the first driving part is arranged on the lifting part;

[0012] The second driving part is connected with the lifting part, which is used to drive the lifting part to move up and down, so as to drive the first driving part and the earth pushing part to move up and down;

[0013] The rack, the second driving part is arranged on the rack, the lifting part is arranged on the rack, and can move up and down along the rack.

[0014] In some embodiments of the present application, the first driving member comprises:

[0015] a first motor arranged on the lifting member;

[0016] a first transmission member connected with an output shaft of the first motor;

[0017] a conversion member rotatably connected with the first transmission member and the bulldozing member, for converting the rotational power transmitted by the first transmission member into horizontal power to drive the bulldozing member to move horizontally forward and backward.

[0018] In some embodiments of the present application, the conversion member comprises:

[0019] a rotating disc connected with the first transmission member, for rotating under the action of the power transmitted by the first transmission member;

[0020] a connecting rod rotatably connected with a non-central position of the rotating disc;

[0021] a driving rod rotatably connected with the other end of the connecting rod and the bulldozing member;

[0022] a limiting member with a limiting slot through which the driving rod passes, for limiting the swinging of the driving rod to make the driving rod move horizontally forward and backward.

[0023] In some embodiments of the present application, the limiting member comprises:

[0024] a first supporting rod arranged horizontally, one end of which is connected with the lifting member;

[0025] a second supporting rod arranged vertically, the other end of the first supporting rod being connected with the second supporting rod, and the limiting slot being arranged on the second supporting rod.

[0026] In some embodiments of the present application, the first transmission member comprises:

[0027] a first gear arranged on the output shaft of the first motor, for rotating under the drive of the second motor;

[0028] a second gear connected with the rotating disc, the first gear and the second gear being engaged with each other.

[0029] In some embodiments of the present application,

[0030] the side of the bulldozing member facing the bulldozing is a concave arc surface.

[0031] In some embodiments of the present application, the lifting member comprises:

[0032] a lifting platform connected with the second driving member, and the first driving member being arranged on the lifting platform.

[0033] A guide rail is connected with the lifting platform, the rack has a guide groove, and the guide rail and the guide groove are matched with each other, so that the lifting platform can move up and down relative to the rack.

[0034] In some embodiments of the present application, the first driving member comprises:

[0035] A second motor is arranged on the rack;

[0036] A second transmission member is connected with the output shaft of the second motor;

[0037] A ball screw is connected with the second transmission member and is used to rotate under the power transmitted by the second transmission member;

[0038] A ball nut is arranged on the lifting member and is connected with the ball screw, and under the rotation of the ball screw, the ball nut drives the lifting member to move up and down.

[0039] In some embodiments of the present application, the second transmission member comprises:

[0040] A third gear is connected with the output shaft of the second motor;

[0041] A fourth gear is connected with the ball screw and rotates synchronously with the ball screw, and the third gear and the fourth gear are meshed with each other.

[0042] In the second aspect, the embodiments of the utility model provide a planter, which comprises the earthing device in the above-mentioned embodiments.

[0043] Compared with the prior art, the embodiments of the utility model have the beneficial effects that:

[0044] The technical scheme of the embodiment comprises two earth covering parts arranged horizontally and stacked with each other, and the two earth covering parts are used to drive the soil to move from the horizontal direction towards the two earth covering parts to realize earth covering, wherein the earth covering part comprises a bulldozing part, a first driving part, a lifting part, a second driving part and a rack, the height of the lifting part can be adjusted by the second driving part, so that the lifting part is lowered at a suitable earth covering position to realize earth covering, and the lifting part is lifted to a certain height by the second driving part to avoid obstacles such as stones at an unsuitable position; when the lifting part is lowered to a certain position, the bulldozing part is driven by the first driving part to push the soil to move, the two bulldozing parts of the two earth covering parts move towards each other, and the soil is pushed to realize earth covering. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0046] Fig. 1 is a structural schematic view of an earth covering device provided by the present application.

[0047] Fig. 2 is a structural schematic view of a part of an earth covering device provided by the present application.

[0048] Among them:

[0049] 100, earth covering part; 110, bulldozing part; 120, first motor; 131, first gear; 132, second gear; 133, rotating disc; 134, connecting rod; 135, driving rod; 136, limiting part; 141, lifting platform; 142, guide rail; 151, second motor; 152, third gear; 153, fourth gear; 154, ball screw; 155, ball nut. DETAILED DESCRIPTION

[0050] The technical solutions 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 some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0051] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0052] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be replaceably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0053] In the related art, most of the existing soil covering devices do not have the ability to operate independently, and usually rely on the forward movement of the machine they are carried on to realize the collection of soil, or only have a single opening and closing movement, which is not conducive to the uniformity and integrity of soil covering, and is not strong in adaptability to complex terrain; most of the soil covering plates are designed in the shape of an inverted "V", which can easily cause the soil not to be completely covered into the planting pit during soil covering, affecting the efficiency and quality of the realization of the soil covering function. The soil covering device of the present application has an independent motor drive, so that it can be unaffected by the overall operation state of the machine, and can still perform soil covering work when the machine stops in place, allowing the soil covering work to have more operational space and improving the integrity of the soil covering; the soil covering device has movement ability in the horizontal and vertical directions, compared with the mechanism fixed on the machine or only having a single movement, it can more accurately control the position and height of the soil covering, achieve precise and comprehensive soil covering effect, and can flexibly adapt to the height changes of the terrain; the soil pushing cover carried by the mechanism is a semicircular bowl structure, which pushes the soil from the symmetrical two sides, can more comprehensively wrap the surrounding soil, so that it covers more soil at the root of the sapling, the design of the wide top and narrow bottom of the soil pushing cover can better accumulate the soil, slightly compact the soil while not damaging the sapling body, ensure that the soil has enough supporting force for the sapling, so that it achieves the effect of standing straight and not falling, and improves the integrity and accuracy of the soil covering.

[0054] The specific embodiments of the utility model are described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but are not used to limit the scope of the utility model.

[0055] As shown in Figs. 1-2 the first aspect, the embodiments of the utility model provide a soil covering device, the soil covering device comprises:

[0056] two soil covering parts 100, two the soil covering parts 100 are horizontally symmetrical and are arranged, two the soil covering parts 100 are used to drive mud from horizontal direction to move towards two, to realize soil covering;

[0057] Among them, the soil covering part 100 includes:

[0058] Bulldozing part 110 is used to push mud when moving;

[0059] First driving part, with the bulldozing part 110 is connected, is used to drive the bulldozing part 110 moves;

[0060] Lifting part, the first driving part is arranged on the lifting part;

[0061] Second driving part, with the lifting part is connected, is used to drive the lifting part moves up and down, to drive the first driving part and bulldozing part 110 moves up and down;

[0062] Frame, the second driving part is arranged on the frame, the lifting part is arranged on the frame, and can move up and down along the frame.

[0063] The technical scheme of the embodiment, the soil covering device includes two soil covering parts 100 that are arranged horizontally, and the soil covering parts 100 are used to drive mud from horizontal direction to move towards two, to realize soil covering, wherein the soil covering part 100 includes bulldozing part 110, first driving part, lifting part, second driving part and frame, the height of the lifting part can be adjusted by the second driving part, so that the lifting part is placed down to cover soil at the appropriate soil covering position, and the lifting part is lifted to a certain height to avoid at the inappropriate position, such as stone obstacle etc.;When the lifting part is lowered to a certain position, the bulldozing part 110 is driven by the first driving part to push mud to move, and the two bulldozing parts of the two soil covering devices move towards the middle, to push mud to realize soil covering. Effectively solve the technical problem that the soil covering device in the prior art mostly does not have the ability of independent operation, generally relies on the machine carried to realize the collection of soil, or only has the single opening and closing movement, which is not conducive to the uniformity and integrity of soil covering.

[0064] The soil covering device of the embodiment has movement ability in both horizontal and vertical directions, compared with the mechanism fixed on the machine or only single movement, can more accurately control the position and height of soil covering, achieve accurate and comprehensive soil covering effect, and can flexibly adapt to the height change of the terrain; the bulldozing cover carried by the soil covering device is a semicircular bowl structure, which pushes the soil from the symmetrical two sides, can more comprehensively wrap the surrounding soil, make it cover more on the root of the sapling, the design of wide top and narrow bottom of the bulldozing cover can better accumulate the soil, slightly compact while not harming the sapling body, ensure that the soil has enough supporting force for the sapling, so that it achieves the effect of straightening and not falling, improves the integrity and accuracy of soil covering.

[0065] The soil covering device of the embodiment, the movement function part is designed in a novel two-dimensional operation mode, compared with fixing the soil covering device on the machine in the past, which means that the machine has movement ability in horizontal and vertical directions, the machine can more accurately position and control the position and depth of the soil covering device, and make real-time movement adjustment according to the actual situation, so as to achieve more uniform soil covering effect. This operation mode makes the soil covering result more consistent, improves the soil covering quality and efficiency. This design enables the machine to better adapt to the change of terrain and process different types of soil, and realizes the accumulation of soil through continuous reciprocating motion to achieve uniform soil covering effect.

[0066] In the embodiment, the first driving member and the second driving member can be air cylinders, oil cylinders or electric cylinders, etc., and can also be small rudders or motors, etc., such as the structure of motor + gear + rack. In the case that the first driving member and the second driving member are rudders, two rudders are used in the soil covering device to drive the movement in horizontal and vertical directions, the rudders are installed on the gear, and the rotation of the gear drives the movement of the connecting rod or other mechanical devices. By controlling the rotation angle of the rudder, accurate control of the soil covering mechanism in horizontal and vertical directions can be realized to adapt to different working requirements.

[0067] In some embodiments of the present application, the first driving member comprises:

[0068] The first motor 120 is arranged on the lifting member;

[0069] The first transmission member is connected with the output shaft of the first motor 120;

[0070] The conversion member is rotationally connected with the first transmission member and the bulldozing member 110, and is used for converting the rotating power transmitted by the first transmission member into horizontal power to drive the horizontal forward and backward movement of the bulldozing member 110.

[0071] In the embodiment, the first motor 120 can be a common motor or a rudder;

[0072] The steering engine can be used as a basic output execution mechanism in micro-electro-mechanical system and model aircraft. Therefore, the steering engine is used to control the operation of the first transmission member, such as a gear. The STM32 controls the rotation of the steering engine by outputting different PWM signals, thereby controlling the horizontal movement of the pushing member 110 of the covering device. The parameters of the steering engine can be selected as 60 kg-cm (5.886 N*M).

[0073] The steering engine is a position (angle) servo driving member, which is suitable for control systems that require continuous changes in angle and can be maintained. At present, it has been widely used in high-end remote control toys, such as model aircraft, submarine models, and remote control robots. The steering engine is actually a servo motor, which adjusts the speed and position of the steering engine by introducing a PID (proportional-integral-derivative) algorithm. The PID algorithm calculates a correction value according to the difference between the current position of the steering engine and the target position, and then sends the correction value as a control signal to the steering engine, so that it gradually approaches the target position. By adjusting the parameters in the PID algorithm, the response speed and position accuracy of the steering engine can be controlled.

[0074] The first transmission member can be a gear meshing with each other, or a combination of a pulley and a belt, etc.

[0075] In this embodiment, the conversion member can be a structure with an eccentric structure, a guide rod, and a guide block. The eccentric structure outputs rotation, the guide rod is connected to the guide block and the eccentric structure, and the guide block is arranged on the guide rail to form linear motion. The eccentric structure drives the guide rod to act on the guide block, and the guide block forms linear motion under the limitation of the guide rail 142 to drive the pushing member 110 to move linearly for pushing.

[0076] In some embodiments of the present application, the conversion member includes:

[0077] The rotating disc 133 is connected to the first transmission member and rotates under the action of the power transmitted by the first transmission member;

[0078] The connecting rod 134 is rotatably connected to a non-central position of the rotating disc 133;

[0079] The driving rod 135 is rotatably connected to the other end of the connecting rod 134 and the pushing member 110;

[0080] The limiting member 136 has a limiting groove, and the driving rod 135 passes through the limiting groove to limit the swinging of the driving rod 135, so that the driving rod 135 moves horizontally forward and backward.

[0081] In the embodiment, the rotating disc 133 can be a circular disc or an elliptical disc, etc. One end of the connecting rod 134 is hingedly connected to a non-central point of the rotating disc 133, so that the other end of the connecting rod 134 has a displacement difference in the linear direction under the driving of the rotating disc 133. The other end of the connecting rod 134 is connected to the driving rod 135 which is limited in the limiting member 136, so that the driving rod 135 can move along the horizontal linear direction, thereby driving the bulldozing member 110 to move horizontally and linearly.

[0082] In some embodiments of the present application, the limiting member 136 comprises:

[0083] The first supporting rod is horizontally arranged and has one end connected to the lifting member;

[0084] The second supporting rod is vertically arranged and has the other end connected to the first supporting rod, and the limiting slot is arranged on the second supporting rod.

[0085] In the embodiment, the first supporting rod and the second supporting rod can form the limiting member 136 for limiting the swinging of the driving rod 135, so that the driving rod 135 can convert all the power transmitted from the rotating disc 133 through the connecting rod 134 into power for horizontal movement as much as possible, thereby driving the bulldozing member 110 to move horizontally and linearly.

[0086] The rotating disc 133 rotates one circle to drive the bulldozing cover to move once, and the straight connecting rod 134 controls the bulldozing cover to move linearly. The power is obtained through the gear, thereby improving the torsional torque and enhancing the output.

[0087] In some embodiments of the present application, the first transmission member comprises:

[0088] The first gear 131 is arranged on the output shaft of the first motor 120 and rotates under the driving of the second motor 151;

[0089] The second gear 132 is connected to the rotating disc 133, and the first gear 131 and the second gear 132 are engaged with each other.

[0090] In the embodiment, the power is transmitted through the first gear 131 and the second gear 132, so that the driving rod 135 can obtain the power through the gear, thereby improving the torsional torque and enhancing the output.

[0091] In some embodiments of the present application,

[0092] The bulldozing surface of the bulldozing member 110 is concave.

[0093] In this embodiment, the earth pushing member is designed in an inverted "V" shape to collect soil, and the earth covering device is designed as a concave arc structure in a bowl shape to wrap and transport soil. By wrapping soil in the bowl-shaped structure, we can better control the flow and distribution of soil, ensuring that soil can smoothly enter and exit the earth covering plate, avoiding the occurrence of blockage. At the same time, this design also helps to reduce soil overflow, ensuring a more efficient and uniform earth covering process. In addition, the bowl-shaped structure can also improve the density of the soil, making the soil more compact during the covering process, which is beneficial to the consistency and stability of the covering result. Such design can effectively solve the problems that may occur in the soil collection and transportation process of the traditional inverted "V" design, improving the efficiency and quality of earth covering.

[0094] The upper narrow and lower wide circular arc earth pushing member 110 better controls the flow and distribution of soil, and can accumulate and slightly compact the soil.

[0095] In some embodiments of the present application, the lifting member comprises:

[0096] The lifting platform 141 is connected with the second driving member, and the first driving member is arranged on the lifting platform 141;

[0097] The guide rail 142 is connected with the lifting platform 141, and the machine frame has a guide groove, and the guide rail 142 and the guide groove are matched with each other, so that the lifting platform 141 can move up and down relative to the machine frame.

[0098] In this embodiment, the guide rail 142 connected by the lifting platform 141 cooperates with the guide groove of the machine frame, that is, a fixed linear motion guide rail 142 is provided, and the use of double guide rails 142 can reduce pressure and prevent deformation.

[0099] In some embodiments of the present application, the first driving member comprises:

[0100] The second motor 151 is arranged on the machine frame;

[0101] The second transmission member is connected with the output shaft of the second motor 151;

[0102] The ball screw 154 is connected with the second transmission member and is used to rotate under the action of the power transmitted by the second transmission member;

[0103] The ball nut 155 is arranged on the lifting member and connected with the ball screw 154, and under the rotation of the ball screw 154, the ball nut 155 drives the lifting member to move up and down.

[0104] In this embodiment, the second motor 151 can be different step motors, etc., and can also be a rudder.

[0105] The second transmission member can be intermeshing gears, a combination of pulleys and belts, or the like.

[0106] Moreover, the second transmission member drives the ball screw 154 to control the horizontal height of the lifting platform 141, and the ball screw 154 and the ball nut 155 provide greater traction and higher torque resistance, thereby more accurately controlling the vertical movement of the lifting platform 141.

[0107] In some embodiments of the present application, the second transmission member comprises:

[0108] The third gear 152 is connected to the output shaft of the second motor 151.

[0109] The fourth gear 153 is connected to the ball screw 154 and rotates synchronously with the ball screw 154, and the third gear 152 and the fourth gear 153 are intermeshed.

[0110] In this embodiment, the transmission is achieved through the intermeshing of the third gear 152 and the fourth gear 153, which can more accurately control the vertical up-and-down movement of the lifting platform 141 and have higher torque resistance.

[0111] In some embodiments, the driving mode of the covering device can be a power-independent steering engine. This design has high practicality and reliability. By driving the steering engine independently of the power source, the covering device can continue to work even if the machine body stops running, ensuring the continuity and integrity of the covering. This design can effectively deal with sudden situations such as machine failure and energy interruption, ensuring the smooth progress of the covering task. At the same time, the power-independent steering engine also brings more accurate and controllable covering effect, because it can independently adjust and control the movement of the covering device, and is no longer limited by the running state of the machine as a whole. This means that even in complex working environments, the covering device can respond more flexibly and timely, improving the efficiency and quality of covering.

[0112] In a second aspect, the utility model provides a kind of planting machine, including the covering device as described in the above embodiment.

[0113] The technical scheme of the embodiment comprises two earth covering parts 100 arranged horizontally, the two earth covering parts 100 are used to drive the soil to move from the horizontal direction to the two earth covering parts 100, so as to realize the earth covering, wherein the earth covering part 100 comprises a bulldozing part 110, a first driving part, a lifting part, a second driving part and a rack, the height of the lifting part can be adjusted by the second driving part, so as to put down the lifting part to cover the soil at the suitable position, and the lifting part is lifted to a certain height by the second driving part to avoid the position such as stone obstacle and the like; when the lifting part is put down to a certain position, the bulldozing part 110 is driven by the first driving part to push the soil to move, the two bulldozing parts of the two earth covering parts 100 move towards the middle, push the soil to realize the earth covering. The technical problem that the earth covering device in the prior art does not have the self-operation ability, generally relies on the forward movement of the machine to realize the soil collection, or only has the single opening and closing movement, which is not conducive to the uniformity and completeness of the soil covering is effectively solved.

[0114] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0115] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A soil covering device, characterized in that, The soil covering device includes: Two soil covering components are arranged horizontally and symmetrically. The two soil covering components are used to drive the soil from the horizontal direction to move between them to achieve soil covering. The soil covering component includes: Bulldozing components are used to push soil when moving. The first driving component is connected to the bulldozer component and is used to drive the bulldozer component to move; A lifting component, wherein the first driving component is mounted on the lifting component; The second driving component is connected to the lifting component and is used to drive the lifting component to move up and down, thereby driving the first driving component and the bulldozing component to move up and down. The frame has a second drive unit mounted on it, and a lifting unit mounted on it that can move up and down along the frame.

2. The soil covering device according to claim 1, characterized in that, The first driving element includes: The first motor is mounted on the lifting component; The first transmission component is connected to the output shaft of the first motor; The conversion component rotatably connects the first transmission component and the bulldozer component, and is used to convert the rotational power transmitted by the first transmission component into horizontal power to drive the bulldozer component to move horizontally back and forth.

3. The soil covering device according to claim 2, characterized in that, The conversion component includes: A turntable, connected to the first transmission component, is used to rotate under the power transmitted by the first transmission component; The connecting rod has one end rotatably connected to the non-central position of the turntable; The drive rod rotatably connects the other end of the connecting rod to the bulldozer component; A limiting member has a limiting groove through which the drive rod passes to limit the swing of the drive rod so that the drive rod can move horizontally back and forth.

4. The soil covering device according to claim 3, characterized in that, The limiting component includes: The first support rod is horizontally positioned and one end is connected to the lifting component. The second support rod is vertically arranged and connected to the other end of the first support rod, and the limiting groove is provided on the second support rod.

5. The soil covering device according to claim 4, characterized in that, The first transmission component includes: The first gear is mounted on the output shaft of the first motor and rotates under the drive of the first motor; The second gear is connected to the turntable, and the first gear and the second gear mesh with each other.

6. The soil covering device according to claim 5, characterized in that, The bulldozer component has a concave arc surface facing the bulldozer.

7. The soil covering device according to claim 6, characterized in that, The lifting component includes: A lifting platform is connected to the second driving component, and the first driving component is disposed on the lifting platform; A guide rail is connected to the lifting platform. The frame has a guide groove, and the guide rail and the guide groove are adapted to each other so that the lifting platform can move up and down relative to the frame.

8. The soil covering device according to claim 7, characterized in that, The first driving element includes: The second motor is mounted on the frame; The second transmission component is connected to the output shaft of the second motor; A ball screw, connected to the second transmission component, is used to rotate under the power transmitted by the second transmission component; A ball nut is disposed on the lifting component and connected to the ball screw, and is used to drive the lifting component to move up and down when the ball screw rotates.

9. The soil covering device according to claim 8, characterized in that, The second transmission component includes: The third gear is connected to the output shaft of the second motor; The fourth gear is connected to the ball screw and rotates synchronously with the ball screw. The third gear and the fourth gear mesh with each other.

10. A planting machine, characterized in that, Includes the soil covering device as described in any one of claims 1-9.

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