Grass pressing device for desert vegetation planting sand stabilization

Abstract

The invention belongs to the technical field of desert vegetation sand stabilization, and particularly relates to a grass pressing device for desert vegetation planting sand stabilization, the grass pressing device comprises two main connecting plates, grass pressing mechanisms are arranged on the sides, away from each other, of the two main connecting plates, and a sand taking mechanism and a reinforcing mechanism are jointly arranged between the two main connecting plates. The grass pressing mechanism comprises a grass pressing wheel composed of two discs, the edges of the sides, close to each other, of the two discs are jointly and fixedly connected through a plurality of fixing columns, one disc is rotationally connected with the outer side of one end of the main connecting plate, and the opposite sides of the two discs form a discharging channel. The straw pressing wheel and the sand taking mechanism are matched to lay sandy soil at the bending position of the straw to achieve primary reinforcement, then the reinforcing mechanism fills the sandy soil in the gap between the side wall of the groove and the straw and applies extrusion force to achieve secondary reinforcement, and therefore the straw is pressed into the groove for double reinforcement, the wind resistance of the straw is greatly improved, and the yield of the straw is increased. Therefore, the grass pressing quality and the integral effect of vegetation planting sand stabilization are ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of desert vegetation sand-fixing, and particularly relates to a grass pressing device for desert vegetation planting and sand-fixing. BACKGROUND

[0002] The ecological environment of desert areas is fragile, and wind and sand activities are frequent, which seriously threatens the ecological safety and human production and life of the surrounding areas. As an economical and effective sand-fixing method, vegetation planting has been widely used in desert control. The performance of the grass pressing device, as a key equipment in the process of vegetation planting and sand-fixing, directly affects the stability and durability of the sand-fixing effect.

[0003] At present, the existing grass pressing device for desert vegetation planting and sand-fixing presses straw and other materials into a pre-dug trench to form a V-shaped structure to achieve sand-fixing during operation. This method can resist wind and fix flowing sand to some extent, but has the following shortcomings in actual application: 1. The straw pressed into the trench is in a V shape, and due to the lack of effective extrusion force on the top of the V-shaped straw, part of the straw is easily bounced back under the action of external wind and the material of the straw itself, which reduces the tightness of the combination of the straw and the surrounding soil, greatly reduces the wind resistance of the overall structure, and makes it difficult to play a long-term and stable sand-fixing role; 2. There is a gap between the V-shaped straw after extrusion and the side wall of the trench, which makes the soil in the trench unable to form enough extrusion force on the pressed straw, further weakening the stability of the straw in the trench, resulting in low wind resistance and difficulty in effectively resisting the strong wind in the desert area, thereby affecting the overall effect of vegetation planting and sand-fixing.

[0004] Therefore, in view of the above problems existing in the prior art, it is urgent to develop a grass pressing device that can improve the tightness of the combination of straw and soil and enhance the wind resistance, so as to meet the actual needs of desert vegetation planting and sand-fixing. SUMMARY

[0005] In order to solve the above problems, the present application provides a grass pressing device for desert vegetation planting and sand-fixing, which is used to solve the problems mentioned in the background.

[0006] In order to achieve the above object, the embodiment of the present application provides the following technical scheme: the present application provides a grass pressing device for desert vegetation planting and sand fixation, comprising two main connecting plates, the side away from each other of the two main connecting plates is provided with a grass pressing mechanism, and the two main connecting plates are commonly provided with a sand taking mechanism and a reinforcing mechanism. The grass pressing mechanism comprises a grass pressing wheel composed of two discs, the edges of the two discs away from each other are commonly fixed and connected by a plurality of fixed columns, one of the two discs is rotatably connected to the outer side of one end of the main connecting plate, and the opposite sides of the two discs form a discharging channel. The sand taking mechanism comprises a conveying assembly arranged between the two main connecting plates, the conveying assembly is provided with a sand digging assembly, and the sand digging assembly is provided with a driving assembly between the two main connecting plates. The reinforcing mechanism comprises a fixing frame fixedly connected with the two main connecting plates, and the left and right sides of the fixing frame are provided with a sand pushing assembly and an extrusion assembly. The sand soil is dug by the sand digging assembly and sent into the discharging channel in the grass pressing wheel inside the conveying assembly in cooperation with the conveying assembly, the sand soil is put into the upper side of the lowermost end of the straw when the grass pressing wheel rotates to press the grass, and the sand pushing assembly can push the sand soil at the edge of the groove port into the groove to fill the gap between the groove sidewall and the straw, and the extrusion assembly extrudes the soil on both sides of the groove port during movement to promote the extrusion of the straw by the groove sidewall.

[0007] According to an advantageous embodiment, the opposite sides of the two main connecting plates and the ends away from the grass pressing wheel are commonly fixedly provided with a connecting frame, and two electric telescopic rods are hingedly arranged between the two main connecting plates, and the connecting frame and the electric telescopic rods are connected with an external traction device.

[0008] According to an advantageous embodiment, the discharging channel comprises a storage cavity composed of the middle parts of the opposite sides of the two discs, the edges of the opposite sides of the two discs are provided with discharge ports in communication with the corresponding storage cavities, and the plurality of fixed columns between the two discs are uniformly distributed along the circumferential direction of the disc.

[0009] According to an advantageous embodiment, the conveying assembly comprises a conveying pipe fixedly arranged between the two main connecting plates, both ends of the conveying pipe are movably penetrated through the corresponding discs and extend into the corresponding storage cavities, a bidirectional spiral conveying auger is rotatably arranged in the conveying pipe, both ends of the bidirectional spiral conveying auger are movably extended into the corresponding storage cavities and fixedly connected with the corresponding discs, and a feeding port is formed in the upper side of the middle part of the conveying pipe.

[0010] According to an advantageous embodiment, the sand digging assembly comprises two rotating discs rotatably arranged on the surface of the conveying pipe and distributed on the left and right sides, a plurality of buffer connectors are arranged on the circumferential side of the rotating disc along the circumferential direction thereof, a bucket is commonly arranged between the corresponding left and right buffer connectors, and a driving assembly is commonly arranged between the two rotating discs and the two main connecting plates.

[0011] According to an advantageous embodiment, a material guide plate matched with the bucket is fixedly arranged at the middle part of the material conveying pipe close to the inlet port position, and a material guide groove is formed in the upper side of the material guide plate.

[0012] According to an advantageous embodiment, a plurality of sliding grooves are formed in the circumferential side of the rotating disc along the circumferential direction thereof, the sliding grooves extend along the radial direction of the rotating disc, the buffer connecting member comprises a connecting column slidingly inserted into the sliding groove, one end of the connecting column away from the corresponding rotating disc is provided with a spring telescopic rod I, the telescopic end of the spring telescopic rod I is fixedly connected with the bucket, a plurality of bolt fixing holes I are formed in the surface of the connecting column along the length direction thereof, the rotating disc and each corresponding connecting column are fixedly connected through a bolt I and a nut I, and the bolt I movably penetrates through the bolt fixing hole I on the corresponding connecting column.

[0013] According to an advantageous embodiment, the driving assembly comprises a sprocket I fixedly arranged on one side of the rotating disc and coaxial with the rotating disc, a rotating shaft is rotatably arranged between the opposite sides of the two main connecting plates, two sprocket II symmetrically distributed left and right are fixedly arranged on the rotating shaft, the sprocket I and the corresponding sprocket II are drivingly connected through a sprocket set, and one end of the rotating shaft is fixedly connected with the output shaft of the motor fixedly arranged on the outside of one of the main connecting plates.

[0014] According to an advantageous embodiment, the sand pushing assembly comprises four spring telescopic rods II fixedly arranged on the fixed frame, the four spring telescopic rods II are symmetrically arranged in two groups left and right, and the telescopic ends of the corresponding two spring telescopic rods II are fixedly connected with a material pushing plate, and the corresponding two material pushing plates are symmetrically arranged left and right.

[0015] According to an advantageous embodiment, the extrusion assembly comprises two adjusting plates slidingly inserted into the fixed frame and symmetrically arranged left and right, the lower side of the adjusting plate is rotatably connected with an extrusion wheel, a plurality of bolt fixing holes II are formed in the adjusting plate, and the fixed frame and the adjusting plate are fixedly connected through a bolt II and a nut II.

[0016] Compared with the prior art, the grass pressing device for desert vegetation planting and sand fixation provided by the embodiment of the present application has the following beneficial effects: 1. In the present application, the grass pressing wheel cooperates with the sand taking mechanism, the sand soil is continuously transported into the storage cavity through the sand taking mechanism, and the sand soil is precisely poured into the upper side of the bent straw at the same time when the straw is pressed into the groove by the grass pressing wheel. The self-weight of the sand soil forms a continuous downward pressure, which suppresses the rebounding tendency of the straw, significantly improves the combination and compactness of the straw and the soil, and improves the wind resistance of the straw after being pressed into the groove.

[0017] 2、The reinforcing mechanism in the application cooperates with the extrusion wheel, and after pressing the straw, the sand on both sides of the groove is pushed along the sidewall into the groove by the pushing plate, and the original gap between the straw and the sidewall of the groove is actively filled. Then the soil at the port of the groove is subjected to centripetal pressure by the extrusion wheel, forcing the sidewall soil of the groove to continuously extrude the vertical section of the straw, forming a continuous lateral extrusion force, further improving the wind resistance of the straw pressed into the groove.

[0018] 3、In the application, sand is laid at the bending place of the straw by the straw pressing wheel and the sand taking mechanism to realize primary reinforcement, and then the gap between the straw and the sidewall of the groove is filled with sand and extrusion force is applied by the reinforcing mechanism to realize secondary reinforcement, so that the straw pressed into the groove is double reinforced, greatly improving the wind resistance of the straw, thereby ensuring the quality of straw pressing and the overall effect of vegetation planting and sand fixation. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective structure diagram of the whole application.

[0020] Figure 2 It is a front plane structure diagram of the application.

[0021] Figure 3 It is a top plane structure diagram of the application.

[0022] Figure 4 It is a side plane structure diagram of the application.

[0023] Figure 5 It is a front cutaway perspective structure diagram of the whole application.

[0024] Figure 6 It is a side cutaway perspective structure diagram of the application.

[0025] Figure 7 It is a perspective structure diagram of the extrusion assembly in the application.

[0026] In the drawing, the reference signs are as follows: 1, main connecting plate; 2, straw pressing mechanism; 21, straw pressing wheel; 211, disc; 212, fixed column; 22, discharge channel; 221, storage cavity; 222, discharge port; 3, sand taking mechanism; 31, material conveying assembly; 311, material conveying pipe; 312, bidirectional spiral conveying auger; 313, feeding port; 32, sand digging assembly; 321, rotating disc; 322, buffer connecting piece; 3221, connecting column; 3222, spring telescopic rod one; 323, shovel; 324, driving assembly; 4, reinforcing mechanism; 41, fixed frame; 42, sand pushing assembly; 421, spring telescopic rod two; 422, pushing plate; 43, extrusion assembly; 431, adjusting plate; 432, extrusion wheel; 5, connecting frame; 6, electric telescopic rod; 7, material guide plate. DETAILED DESCRIPTION

[0027] The accompanying drawings, which are incorporated herein by reference Figure 1 - the drawings Figure 7 The application is further described in detail.

[0028] Please refer to Figures 1-4 A grass pressing device for desert vegetation planting and sand fixation comprises two main connecting plates 1, a connecting frame 5 is fixedly arranged at the end of the two main connecting plates 1 away from the grass pressing wheel 21, two electric telescopic rods 6 are hingedly arranged between the two main connecting plates 1, a grass pressing mechanism 2 is arranged on the side of each of the two main connecting plates 1 away from each other, and a sand taking mechanism 3 and a reinforcing mechanism 4 are arranged between the two main connecting plates 1. The main connecting plates 1 are driven to be lifted or pressed down by the electric telescopic rods 6. The connecting frame 5 and the electric telescopic rods 6 are connected with an external traction device. The specific connection structure of the connecting frame 5 and the electric telescopic rods 6 with the external traction device is known in the art, and is not described in detail in the present scheme.

[0029] In specific work, the external traction device drags the entire grass pressing device to move, so that the grass pressing mechanism 2 can move towards the trench in which the straw is laid in advance. In the moving process, the straw is pressed into the trench, and at the same time, the sand on the ground is scooped up by the sand taking mechanism 3 and cooperates with the grass pressing mechanism 2 to pour the sand on the upper side of the straw bending part in the trench.

[0030] After the straw is pressed into the trench, the reinforcing mechanism 4 can also follow the moving process to push the sand on both sides of the trench port, so that the sand flows from the trench side wall into the trench and is filled between the trench side wall and the straw to support the straw. At the same time, the reinforcing mechanism 4 can also extrude the soil at the trench port, so that the soil on both sides of the trench port moves towards the straw to further extrude the straw and reinforce the straw.

[0031] Please refer to Figure 1 and Figure 5 In order to facilitate the uniform laying of sand on the upper side of the straw bending part in the trench, the grass pressing mechanism 2 comprises a grass pressing wheel 21 composed of two discs 211. The two discs 211 are fixedly connected by a plurality of fixed columns 212 between the edge of the side close to each other. One of the two discs 211 is rotatably connected to the outer side of one end of the main connecting plate 1. The opposite sides of the two discs 211 form a discharging channel 22. The discharging channel 22 comprises a storage cavity 221 composed of the middle part of the opposite sides of the two discs 211. The edges of the opposite sides of the two discs 211 are provided with a discharging port 222 in communication with the corresponding storage cavity 221. The plurality of fixed columns 212 between the two discs 211 are uniformly distributed along the circumferential direction of the disc 211.

[0032] In specific working, the sand taking mechanism 3 continuously sends sand into the storage cavity 221, and the sand in the storage cavity 221 is discharged from the discharge port 222 under the action of gravity as the grass rolling wheel 21 continuously rolls and rotates, so that the grass rolling wheel 21 pours sand into the bending part of the straw while rolling the straw into the groove.

[0033] Referring to Figure 1 , Figure 2 and Figure 5 , the sand taking mechanism 3 comprises a feeding assembly 31 arranged between the two main connecting plates 1, and the feeding assembly 31 is provided with a sand digging assembly 32. The sand is dug up by the sand digging assembly 32, and the dug sand enters the storage cavity 221 inside the corresponding grass rolling wheel 21 through the feeding assembly 31.

[0034] Referring to Figure 2 , Figure 5 and Figure 6 , the feeding assembly 31 comprises a feeding pipe 311 fixedly arranged between the two main connecting plates 1, both ends of the feeding pipe 311 are movably penetrated through the corresponding disc 211 and extend into the corresponding storage cavity 221, the disc 211 near the feeding pipe 311 in each grass rolling wheel 21 is rotatably connected with the end of the feeding pipe 311 through a bearing, a bidirectional screw conveyor auger 312 is rotatably arranged in the feeding pipe 311, both ends of the bidirectional screw conveyor auger 312 are movably extended into the corresponding storage cavity 221 and fixedly connected with the corresponding disc 211, and a feeding port 313 is formed in the upper middle part of the feeding pipe 311. The bidirectional screw conveyor auger 312 comprises a main shaft and two groups of screw conveyor blades arranged on the left and right sides of the main shaft, the screw conveying directions of the two groups of screw conveyor blades are opposite, and the main shaft is fixedly connected with the corresponding disc 211.

[0035] In specific working, when the main connecting plate 1 moves under the traction of the external traction device, the grass rolling wheel 21 is driven to roll along the groove to roll the grass, and the rotation of the disc 211 in the grass rolling wheel 21 synchronously drives the screw conveyor auger to rotate relative to the feeding pipe 311, so that the sand entering the feeding pipe 311 is moved along the feeding pipe 311 and finally enters the storage cavity 221 inside the grass rolling wheel 21.

[0036] Referring to Figure 2 , Figure 5 and Figure 6The sand digging assembly 32 comprises two rotating discs 321 rotatably arranged on the surface of the conveying pipe 311 and distributed left and right, a plurality of buffer connectors 322 are arranged on the circumferential side of the rotating disc 321 along the circumferential direction thereof, a corresponding left and right buffer connector 322 is jointly provided with a bucket 323, and the two rotating discs 321 and the two main connecting plates 1 are jointly provided with a driving assembly 324. The middle part of the conveying pipe 311 is fixedly provided with a material guide plate 7 matched with the bucket 323 at the port position close to the feeding port 313, and a material guide groove is formed in the upper side of the material guide plate 7. The driving assembly 324 is arranged between the sand digging assembly 32 and the two main connecting plates 1. The rotating disc 321 is controlled to rotate through the driving assembly 324, so that the rotating disc 321 drives the bucket 323 to rotate, so that the bucket 323 can shovel sand, and the sand shovelled by the bucket 323 will be lifted to a certain height after rotation, so that the bucket 323 is inclined, and the sand falls onto the material guide plate 7 under the action of gravity and finally enters the conveying pipe 311 through the feeding port 313 on the conveying pipe 311. When the bucket 323 contacts the sand, the buffer connector 322 is used to avoid hard contact between the bucket 323 and the ground.

[0037] It is particularly pointed out that the rotating speed of the rotating disc 321 and the size of the material guide plate 7 are tested by the person skilled in the art for many times, so as to ensure that the sand shovelled by the bucket 323 can be stably dropped onto the material guide plate 7.

[0038] Referring to Figure 6 In order to ensure that the bucket 323 can shovel sand while rotating without hard contact with the ground, a plurality of sliding grooves are formed in the circumferential side of the rotating disc 321 along the circumferential direction thereof, the sliding grooves extend along the radial direction of the rotating disc 321, the buffer connector 322 comprises a connecting column 3221 slidingly inserted into the sliding groove, a spring telescopic rod one 3222 is arranged at the end of the connecting column 3221 away from the corresponding rotating disc 321, the telescopic end of the spring telescopic rod one 3222 is fixedly connected with the bucket 323, a plurality of bolt fixing holes one are formed in the surface of the connecting column 3221 along the length direction thereof, the rotating disc 321 and each corresponding connecting column 3221 are fixedly connected through a bolt one and a nut one, and the bolt one movably penetrates through the bolt fixing hole one in the corresponding connecting column 3221. The height of the bucket 323 from the ground after rotating to the lowest position is adjusted by adjusting the length of the connecting column 3221 extending out of the rotating disc 321.

[0039] Referring to Figure 6The driving assembly 324 comprises a sprocket wheel I fixedly arranged at one side of the rotating disc 321 and coaxial with the rotating disc 321, a rotating shaft rotatably arranged between opposite sides of the two main connecting plates 1, two sprocket wheels II symmetrically arranged on the rotating shaft, and a transmission connection between the sprocket wheel I and the corresponding sprocket wheel II through a sprocket wheel set. One of the main connecting plates 1 is fixedly provided with a motor at the outer side, and the output shaft of the motor is fixedly connected with one end of the rotating shaft. The rotating disc 321 is controlled to rotate through the motor, the sprocket wheel I and the sprocket wheel II, thereby driving the bucket 323 to rotate.

[0040] Referring to Figure 1 , Figure 2 and Figure 7 , the reinforcing mechanism 4 comprises a fixed frame 41 fixedly connected with the two main connecting plates 1, and a sand pushing assembly 42 arranged at the left and right sides of the fixed frame 41. The sand pushing assembly 42 comprises four spring telescopic rods II 421 fixedly arranged on the fixed frame 41, two of which are symmetrically arranged in a group, and the extension ends of the two spring telescopic rods II 421 are fixedly connected with a pushing plate 422, and the two pushing plates 422 are symmetrically arranged.

[0041] In specific work, the two pushing plates 422 are respectively arranged at the left and right sides of the groove port. After the straw is pressed into the groove by the pressing wheel 21, the sand soil at the left and right sides of the groove port is pushed by the pushing plate 422 to move towards the groove, so that the sand soil slides along the groove side wall and fills into the gap between the groove side wall and the straw, so that the groove side wall and the straw are more closely contacted and pressed.

[0042] Referring to Figure 2 and Figure 7 , the sand pushing assembly 42 is further provided with an extrusion assembly 43. The extrusion assembly 43 comprises two adjusting plates 431 symmetrically slidingly inserted into the fixed frame 41, and the lower side of the adjusting plate 431 is rotatably connected with an extrusion wheel 432. A plurality of bolt fixing holes II are formed in the adjusting plate 431, the fixed frame 41 and the adjusting plate 431 are fixedly connected through the bolt II and the nut II, and the bolt II is movably penetrated through the bolt fixing hole II on the corresponding adjusting plate 431. The height of the extrusion wheel 432 from the ground can be adjusted as needed.

[0043] In specific work, the two extrusion wheels 432 abut against the left and right sides of the groove port, and the soil at the left and right sides of the groove port is extruded, so that the soil near the groove side wall is close to the straw, the extrusion force of the groove side wall on the straw is further improved, and the stability of the straw after being pressed into the groove is improved.

[0044] Particularly, the distance between any two vertical sections of the straw after bending is less than the distance between the corresponding two pressing wheels 432 and the corresponding two pushing plates 422, so that the corresponding two pressing wheels 432 and the corresponding two pushing plates 422 will not interfere with the vertical sections of the straw when moving towards the bent straw; similarly, the height of the uppermost end of the vertical section of the bent straw is much lower than the ground clearance of the fixed frame 41, so that the fixed frame 41 will not touch the straw when moving.

[0045] The working process of the whole straw pressing device is as follows: the straw pressing wheel 21 is driven to move in the groove by an external traction device (usually a tractor or a tracked tractor), the straw laid on the groove is pressed into the groove, the bucket 323 is driven to rotate by the driving assembly 324, the sand soil on the ground is circulated into the conveying pipe 311 by the bucket 323, and the sand soil is sent into the storage cavities 221 inside the straw pressing wheels 21 at the left and right ends by the two-way spiral conveying auger 312, and then the sand soil is discharged through the discharge ports 222 on the straw pressing wheels 21 and laid on the bending position of the bent straw. At the same time, the pushing plate 422 and the pressing wheel 432 move behind the straw pressing wheel 21, after the straw pressing wheel 21 presses the straw into the groove, the pushing plate 422 pushes the sand soil on both sides of the groove port into the groove, and the pressing wheel 432 extrudes the groove port, so that the side wall of the groove can generate extrusion force on the straw, ensuring the stability of the straw in the groove, thereby improving the wind resistance of the straw.

[0046] The sand soil is circulated into the straw pressing wheel 21 by the sand taking mechanism 3 and laid on the bending position of the bent straw to perform primary reinforcement and increase the wind resistance of the straw; then the sand soil on the edge of the groove port is pushed into the side wall of the groove by the pushing plate 422 and the pressing wheel 432 in the reinforcing mechanism 4, the gap between the side wall of the groove and the straw is filled, and the side wall of the groove is extruded, the extrusion force between the side wall of the groove and the straw is improved, and secondary reinforcement is performed. Through the above two levels of reinforcement, the wind resistance of the straw is greatly improved, thereby ensuring the quality of straw pressing and the overall effect of vegetation planting and sand fixation.

[0047] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0048] In addition, the terms "first", "second", "one", "two" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", "one", "two" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0049] In the present application, unless otherwise specifically defined and limited, the terms "set", "install", "connect", "connect", "fix" and other terms should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; 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 internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] The embodiments of the specific implementation are the preferred embodiments of the present application, and are not limited to the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A grass pressing device for desert vegetation planting and sand fixation, comprising two main connecting plates, characterized in that: Two sides of the two main connecting plates away from each other are provided with grass pressing mechanisms, and a sand taking mechanism and a reinforcing mechanism are jointly arranged between the two main connecting plates. The grass pressing mechanism comprises grass pressing wheels composed of two discs, the edges of the two discs away from each other are fixedly connected by a plurality of fixed columns, one of the two discs is rotatably connected to the outer side of one end of the main connecting plate, and the opposite sides of the two discs form a discharging channel. The discharging channel comprises a storage cavity composed of the middle parts of the opposite sides of the two discs, and the edges of the opposite sides of the two discs are provided with discharge ports in communication with the corresponding storage cavities. The sand taking mechanism comprises a conveying assembly arranged between the two main connecting plates, the conveying assembly is provided with a sand digging assembly, and a driving assembly is arranged between the sand digging assembly and the two main connecting plates. The conveying assembly comprises a conveying pipe fixedly arranged between the two main connecting plates, the two ends of the conveying pipe are movably penetrated through the corresponding discs and extend into the corresponding storage cavities, a bidirectional spiral conveying auger is rotatably arranged in the conveying pipe, the two ends of the bidirectional spiral conveying auger are movably extended into the corresponding storage cavities and fixedly connected with the corresponding discs, and a feeding port is formed in the upper side of the middle part of the conveying pipe. The reinforcing mechanism comprises a fixing frame fixedly connected with the two main connecting plates, and a sand pushing assembly and an extrusion assembly are arranged on the left and right sides of the fixing frame. The sand digging assembly digs sand and sends the sand into the discharging channel in the grass pressing wheels in cooperation with the conveying assembly, the sand is put into the upper side of the lowermost bending part of the rice straw when the grass pressing wheels rotate to press the grass, the sand is used to form a continuous downward pressure by its own weight to inhibit the rebounding trend of the rice straw, the sand pushing assembly can push the sand at the edge of the groove port into the groove to fill the gap between the groove sidewall and the rice straw, and the extrusion assembly extrudes the soil on both sides of the groove port during movement to promote the extrusion of the rice straw by the groove sidewall.

2. The grass pressing device for sand fixation of desert vegetation planting according to claim 1, characterized in that, A connecting frame is fixedly arranged at the end of the opposite sides of the two main connecting plates away from the grass pressing wheels, and two electric telescopic rods are hingedly arranged between the two main connecting plates, the connecting frame and the electric telescopic rods are connected with an external traction device.

3. The grass pressing device for sand fixation of desert vegetation planting according to claim 1, characterized in that, The plurality of fixed columns between the two discs are uniformly distributed along the circumferential direction of the disc.

4. The grass pressing device for sand fixation of desert vegetation planting according to claim 1, characterized in that, The sand digging assembly comprises two rotating discs rotatably arranged on the surface of the conveying pipe and distributed on the left and right sides, a plurality of buffer connectors are arranged on the circumferential side of the rotating disc along the circumferential direction thereof, a corresponding left and right buffer connector is jointly provided with a bucket, and the two rotating discs are jointly provided with a driving assembly between the two rotating discs and the two main connecting plates.

5. The grass pressing device for sand fixation of desert vegetation planting according to claim 4, characterized in that, A guide plate matched with the bucket is fixedly arranged at the position of the middle part of the conveying pipe close to the feeding port, and a guide groove is formed in the upper side of the guide plate.

6. The grass pressing device for sand fixation of desert vegetation planting according to claim 4, characterized in that, A plurality of sliding grooves are formed in the circumferential side of the rotating disc along the circumferential direction thereof, the sliding grooves extend along the radial direction of the rotating disc, the buffer connector comprises a connecting column slidably inserted into the sliding groove, one end of the connecting column away from the corresponding rotating disc is provided with a spring telescopic rod one, the telescopic end of the spring telescopic rod one is fixedly connected with the bucket, a plurality of bolt fixing holes one are formed in the surface of the connecting column along the length direction thereof, each corresponding connecting column and the rotating disc are fixedly connected by a bolt one and a nut one, and the bolt one movably penetrates through the bolt fixing hole one on the corresponding connecting column.

7. The grass pressing device for sand fixation of desert vegetation planting according to claim 4, characterized in that, The driving assembly comprises a sprocket I fixedly arranged on one side of the rotating disc and coaxial with the rotating disc, a rotating shaft rotatably arranged between opposite sides of the two main connecting plates, two sprocket IIs fixedly arranged on the rotating shaft and symmetrically distributed left and right, and a sprocket set transmissionally connected between the sprocket I and the corresponding sprocket II, wherein one side of the main connecting plate is fixedly arranged with a motor, and an output shaft of the motor is fixedly connected with one end of the rotating shaft.

8. The grass pressing device for sand fixation of desert vegetation planting according to claim 1, characterized in that, The sand pushing assembly comprises four spring telescopic rods II fixedly arranged on the fixed frame, two groups of the spring telescopic rods II are symmetrically arranged left and right, and the two groups of the spring telescopic rods II are fixedly connected with the pushing plates at the telescopic ends, and the two groups of the pushing plates are symmetrically arranged left and right.

9. The grass pressing device for sand fixation of desert vegetation planting according to claim 1, characterized in that, The extrusion assembly comprises two adjusting plates symmetrically arranged left and right and slidingly inserted into the fixed frame, the adjusting plates are rotatably connected with the extrusion wheels at the lower sides, a plurality of bolt fixing holes II are formed in the adjusting plates, the fixed frame and the adjusting plates are fixedly connected through the bolts II and the nuts II, and the bolts II are movably penetrated through the bolt fixing holes II on the corresponding adjusting plates.

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