A self-propelled longitudinal sand willow barrier laying machine

Abstract

This utility model discloses a self-propelled longitudinal sand willow barrier laying machine, relating to the technical field of sand willow barrier laying. It solves the problems of existing sand willow barrier laying methods, which are mainly done manually, resulting in low laying efficiency and high labor intensity; and existing laying machines are only suitable for soft materials and not for sand willow curtains. The machine includes: a frame, a tray assembly for wrapping the sand willow curtain, and a sand willow laying device for laying the barrier. During operation, a trenching plow under the frame digs a short distance under the control of the cab. The sand willow curtain, guided by the guide trough and the trenching plow, is inserted into the trench, forming an upright sand barrier. The sand trench is covered and compacted by a soil covering device and a pressing wheel. A seedling guide at the end of the guide trough forms a uniformly high sand willow barrier. Two sand willow tray assemblies are provided, which can be flexibly switched during operation. The machine height can be adjusted by adjusting the screw, providing support and balance, and controlling the trench depth and the height of the formed sand barrier; thus saving manpower.

Description

Technical Field

[0001] This utility model relates to the technical field of sand willow barrier laying, and in particular to a self-propelled longitudinal sand willow barrier laying machine. Background Technology

[0002] Stabilizing shifting sand is not only a problem of sand hazard prevention but also an important component of ecological environment governance and fragile ecosystem restoration, closely related to the protection and improvement of the human living environment. Sand barrier construction is one of the main methods of desertification control. Due to the variable wind direction in desert environments, square-grid sand barriers have become the most effective method for sand fixation. In recent years, sand willow has gradually become a popular raw material for mechanical sand barriers due to its strong adaptability, windbreak and sand fixation effects, and particularly outstanding water and soil conservation capabilities. Currently, sand willow sand barriers in my country are mainly laid manually, resulting in low efficiency, high labor intensity, and a significant waste of human and material resources, severely restricting the development of the desertification control industry.

[0003] An existing patent, such as a fully automatic sand barrier sand fixation machine (application number: CN202310619513.X), includes a tracked vehicle body, characterized in that: the tracked vehicle body is equipped with a feeding device (1), a grass clamping device (2), a grass rolling device (3), a grass guiding device (4), a ditching device (5), a pressing device (7), a soil covering device (8), and a transmission system; the feeding device (1) is installed on one side of the vehicle body, the grass clamping device (2) is installed on the feeding device (1), the grass rolling device (3) is installed between the vehicle body and the grass clamping device (2), the grass guiding device (4) is installed on the vehicle body and in front of the grass rolling device (3), the ditching device (5) is installed at the bottom of the vehicle body, the pressing device (7) is installed at the bottom of the vehicle body and behind the ditching device (5), and the soil covering device (8) is installed on one side of the bottom of the vehicle body and shares power with the ditching device (5). Existing paving machines use rolled grass as the paving material, while this utility model's self-propelled longitudinal sand willow barrier paving machine uses sand willow as the raw material. Compared to existing paving machines, which are mostly towed, this utility model is powered by a self-propelled system. Utility Model Content

[0004] The existing sand barriers made of willow are mainly laid manually, which results in low laying efficiency and high labor intensity. The existing laying machines are only suitable for soft materials and not for willow curtains. The purpose of this utility model is to provide a self-propelled longitudinal sand barrier laying machine.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A self-propelled longitudinal sand willow barrier laying machine includes: a cab 1, a chassis 2, pallet assemblies 3, a frame 4, and a sand willow laying device 5. The frame 4 is mounted on the chassis 2. The cab 1 is connected to the frame 4. The sand willow laying device 5 is mounted on the frame 4 and located behind the cab 1. Multiple pallet assemblies 3 are rotatably mounted on the frame 4 and symmetrically arranged on the left and right sides of the sand willow laying device 5. The pallet assemblies 3 are used to carry sand willow curtain bundles 14. The cab 1 is used to carry the operator. The chassis 2 is used for walking. The sand willow laying device 5 is used to lay sand willow barriers. The operator controls the operation of the chassis 2 and the sand willow laying device 5 through the cab 1.

[0007] The self-propelled longitudinal sand willow barrier laying machine mentioned above, wherein the cab 1 includes: a center console 101, a power system 102, a seat 103 and a cab floor 104, the center console 101, the power system 102 and the seat 103 are all installed on the cab floor 104, and the cab floor 104 is connected to the chassis 2.

[0008] The self-propelled longitudinal sand willow barrier laying machine described above, wherein the chassis 2 includes: a chassis main support frame 201, tracks 202 and a gearbox 203. Two tracks 202 are symmetrically installed on the left and right sides of the chassis main support frame 201. The gearbox 203 is installed inside the chassis main support frame 201. The drive ends of the two tracks 202 are connected to the output ends of the gearbox 203. The input ends of the gearbox 203 are connected to the power system 102.

[0009] The aforementioned self-propelled longitudinal sand willow barrier laying machine includes a frame 4 comprising: sand willow curtain guide posts 6, a flow channel guard plate 7, a frame front baffle 8, a marking rod 9, a marking rod slot 10, a flow channel 11, a frame bottom support 12, a bottom plate reinforcing rib 13, and a frame top cover plate 15. Two symmetrical frame top cover plates 15 are installed on the upper surface of the frame bottom support 12. The frame bottom support 12 is mounted on the chassis 2, and the bottom surface of the frame bottom support 12 is connected to the bottom plate reinforcing rib 13. The front side of the frame bottom support 12... Two corners are connected to marking rod slots 10. The lower end of each marking rod 9 is engaged with a bottom bracket 12 of the frame. The two ends of the front baffle 8 of the frame are respectively connected to two marking rods 9. Two symmetrical guide groove guard plates 7 are installed on the bottom bracket 12 of the frame. The two guide groove guard plates 7 are located between the two upper cover plates 15 of the frame. The two guide groove guard plates 7 are provided with guide grooves 11. At least one sand willow curtain guide post 6 is installed on each upper cover plate 15 of the frame. The guide grooves 11 and the sand willow curtain guide posts 6 are used to guide the sand willow curtain.

[0010] The aforementioned self-propelled longitudinal sand willow barrier laying machine includes a pallet assembly 3 comprising: a pallet steel pipe 301, a pallet 302, a pallet mounting angle steel 303, a pallet bearing seat 304, and a pallet pressure sleeve 305. The lower end of the pallet steel pipe 301 is connected to and coaxially arranged with the upper end of the pallet pressure sleeve 305. The pallet pressure sleeve 305 is rotatably mounted inside the pallet bearing seat 304. The pallet bearing seat 304 is mounted on the upper cover plate 15 of the frame located on the left or right side. The pallet mounting angle steel 303 is mounted on the lower end of the pallet steel pipe 301. The pallet 302 is fitted onto the pallet steel pipe 301 and connected to the pallet mounting angle steel 303. The pallet steel pipe 301 is used to wind the sand willow curtain bundles 14. The pallet 302 has a disc-shaped structure and is used to support the sand willow curtain bundles 14.

[0011] The aforementioned self-propelled longitudinal sand willow barrier laying machine includes a sand willow laying device 5 comprising: a laying frame 501, a soil covering device 504, a connecting wall plate 505, a pressing wheel 506, a ditching plow 507, and ditching arm 508. Two ditching arms 508 are symmetrically arranged on the left and right sides and are both mounted on the frame 4. The two ditching arms 508 are rotatably mounted on the left and right sides of the front end of the laying frame 501, respectively. A ditching plow 507 is installed at the bottom of the laying frame 501. A soil covering device 504 is installed on the left and right sides of the rear end of the laying frame 501, respectively. The height of the two soil covering devices 504 is adjustable. A rotatable pressing wheel 506 is provided at the rear end of the laying frame 501. The two ends of the pressing wheel 506 are connected to the laying frame 501 through a connecting wall plate 505, respectively. The installation height of the connecting wall plate 505 on the laying frame 501 is adjustable.

[0012] The aforementioned self-propelled longitudinal sand willow barrier laying machine includes a sand willow laying device 5, which further includes a seedling guide chamber 502 and a cylinder liner 503. Both the seedling guide chamber 502 and the cylinder liner 503 are installed on the laying machine frame 501. The seedling guide chamber 502 opens forward and is located in front of the cylinder liner 503.

[0013] The aforementioned self-propelled longitudinal sand willow barrier laying machine further includes: a hydraulic drive cylinder, one end of which is rotatably connected to the frame 4, and the other end of which is rotatably connected to the top of the cylinder sleeve 503. The hydraulic drive cylinder is used to pull the sand willow laying device 5 to rotate around its front end.

[0014] The aforementioned self-propelled longitudinal sand willow barrier laying machine includes a soil covering device 504 comprising a soil covering plate connecting rod 504-01 and a soil covering plate 504-02. The lower ends of the soil covering plate 504-02 and the soil covering plate connecting rod 504-01 are connected. The upper end of the soil covering plate connecting rod 504-01 is inserted into the left or right side of the rear end of the laying frame 501. The soil covering plate connecting rod 504-01 is provided with multiple connecting holes that are equally spaced along its axial direction.

[0015] The aforementioned self-propelled longitudinal sand willow barrier laying machine includes a ditching plow 507 comprising: a ditch protection plate 507-01, a guide plate 507-02, and a cutting plate 507-03. The two ditch protection plates 507-01 are symmetrically arranged on the left and right and are both installed at the bottom of the laying frame 501. The two ditch protection plates 507-01 are respectively connected to two guide channel plates 7. The front end of each ditch protection plate 507-01 is connected to the guide plate 507-02 and the cutting plate 507-03.

[0016] Because this utility model employs the aforementioned technology, it has the following positive effects compared to existing technologies:

[0017] (1) In this utility model, during operation, the ditching plow under the frame opens a ditch under the control of the machine in the cab. The sand willow curtain is inserted into the ditch under the guidance of the guide trough and the ditching plow to form an upright sand barrier. The sand ditch forming the sand barrier is covered and compacted by the soil covering device and the pressing wheel.

[0018] (2) In this utility model, a regular sand barrier of the same height can be formed through the seedling guide chamber at the end of the guide channel; two sand barrier trays are set up, which can be flexibly switched during operation; the height of the machine body can be adjusted by adjusting the screw, which plays the role of supporting balance and controlling the ditching depth and the height of the sand barrier; saving manpower;

[0019] (2) The sand willow curtain laid by this utility model is a rigid material. Compared with the existing laying machine that presses the straw curtain into the ground, the sand willow curtain of this utility model is buried; the structure is simpler, the operation is more convenient, and the efficiency is higher. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of a self-propelled longitudinal sand willow barrier laying machine according to this utility model.

[0021] Figure 2 This is a schematic diagram of the cab and chassis of a self-propelled longitudinal sand willow barrier laying machine according to this utility model.

[0022] Figure 3 This is a schematic diagram of the pallet assembly of a self-propelled longitudinal sand willow barrier laying machine according to this utility model.

[0023] Figure 4 This is a schematic diagram of the frame structure of a self-propelled longitudinal sand willow barrier laying machine according to this utility model.

[0024] Figure 5 This is a schematic diagram of the sand willow laying device of a self-propelled longitudinal sand willow barrier laying machine according to this utility model.

[0025] Figure 6This is a schematic diagram of the soil covering device of a self-propelled longitudinal sand willow barrier laying machine according to this utility model.

[0026] Figure 7 This is a side view of the soil covering device of a self-propelled longitudinal sand willow barrier laying machine according to this utility model.

[0027] In the attached diagram: 1. Cab; 2. Chassis; 3. Pallet assembly; 4. Frame; 5. Willow curtain laying device; 6. Willow curtain guide post; 7. Flow channel guard plate; 8. Frame front baffle; 9. Marking rod; 10. Marking rod slot; 11. Flow channel; 12. Frame bottom support; 13. Base plate reinforcing rib; 14. Willow curtain bundle; 15. Frame top cover plate; 101. Center console; 102. Power system; 103. Seat; 104. Cab floor plate; 201. Chassis main support frame; 202. Track; 203. Variable... Speedbox; 301, Pallet steel pipe; 302, Pallet; 303, Pallet mounting angle steel; 304, Pallet bearing seat; 305, Pallet pressure sleeve; 501, Laying frame; 502, Seedling guide chamber; 503, Cylinder liner; 504, Soil covering device; 505, Connecting wall panel; 506, Pressing wheel; 507, Furrowing plow; 508, Furrow opener support arm; 504-01, Soil covering plate connecting rod; 504-02, Soil covering plate; 507-01, Furrow protection plate; 507-02, Furrow guide plate; 507-03, Soil cutting plate. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0029] Please refer to Figures 1 to 7 As shown, a self-propelled longitudinal sand willow barrier laying machine is shown, which includes: a cab 1, a chassis 2, a pallet assembly 3, a frame 4, and a sand willow laying device 5;

[0030] Furthermore, in a preferred embodiment, combined with Figure 2 As shown, the cab includes a center console 101, a power system 102, a seat 103, and a cab floor 104. The center console 101, power system 102, and seat 103 are placed on the floor 104, and the cab floor 104 is connected to the front end of the chassis 2 by welding.

[0031] The chassis 2 includes a chassis main support frame 201, tracks 202 and a gearbox 203. The tracks 202 and the gearbox 203 are mounted on the chassis main support frame 201. The two tracks 202 are fitted on both sides of the chassis main support frame 201, and the gearbox 203 is installed between the two tracks 202 at the front end of the chassis main support frame 201.

[0032] Furthermore, in a preferred embodiment, combined with Figure 3As shown, the pallet group 3 includes six pallet group units 3. Each pallet group unit 3 includes a pallet steel pipe 301, a pallet 302, a pallet bearing seat 304, and a pallet pressure sleeve 305. The pallet 302 has a disc-shaped structure. The pallet steel pipe 301 is located at the center of the upper part of the pallet 302. The pallet steel pipe 301 is used to wrap the willow curtain and the pallet 302 supports the wrapped willow curtain bundle 14, which can ensure that the willow curtain bundle 14 rotates more smoothly during operation and reduce the resistance to breaking the bundle. The pallet bearing seat 304 is fixed by the pallet mounting angle steel 303 at the center of the lower part of the pallet 302. The pallet pressure sleeve 305 is located at the center of the bottom end of the pallet bearing seat 304.

[0033] Furthermore, in a preferred embodiment, combined with Figure 4 As shown, the frame 4 includes a frame top cover plate 15, a sand willow curtain guide column 6, a flow guide groove guard plate 7, a frame front baffle 8, a marking rod 9, a marking rod slot 10, a flow guide groove 11, a frame bottom support 12, and a bottom plate reinforcing rib 13. The frame top cover plate 4, sand willow curtain guide column 6, flow guide groove guard plate 7, frame front baffle 8, marking rod 9, marking rod slot 10, and flow guide groove 11 are sequentially welded to the frame bottom support 12. The bottom plate reinforcing rib 13 is welded to the lower end of the frame bottom support 12 and connected to the chassis 2.

[0034] Furthermore, in a preferred embodiment, combined with Figure 5 As shown, the sand willow laying device 5 includes a laying frame 501, a seedling guide chamber 502, a cylinder liner 503, a soil covering device 504, a connecting wall plate 505, a pressing wheel 506, a furrowing plow 507, a furrow opener support arm 508, a furrow protection plate 507-01, a furrow guide plate 507-02, and a soil cutting plate 507-03. The seedling guide chamber 502 is fixed to the laying frame 501 by bolts.

[0035] Furthermore, in a preferred embodiment, the ditching plow 507 includes a ditch protection plate 507-01, a ditch guide plate 507-02, and a soil cutting plate 507-03. Both ditch protection plates 507-01 are connected to the guide channel 11, and the space between the two ditch protection plates 507-01 is used to guide the flow of sand and willow curtains. The ditch protection plate 507-01 located below the guide channel 11 is provided with a guide plate 507-02, and the end of the guide plate 507-02 is provided with a soil cutting plate 507-03.

[0036] Furthermore, in a preferred embodiment, the guide channel 11 and the bottom plate are both at a 30° angle to the ground, and the seedling guide chamber 502 and the ditch protection plate 507-01 are both parallel to the ground.

[0037] Furthermore, in a preferred embodiment, combined with Figure 6As shown, it also includes a soil covering device 504, which includes two soil covering units. Each soil covering unit includes a plate-shaped soil covering plate 504-02 and a soil covering plate connecting rod 504-01 on the soil covering plate 504-02. The soil covering plate 504-02 is connected to the laying frame 501 through the soil covering plate connecting rod 504-01. The two soil covering plates 504-02 are symmetrically arranged in a V-shape on both sides of the trenching plow 507. The end with the smaller opening is located behind the trenching plow 507, which serves to cover and bury the sand willow curtain inserted in the soil trench.

[0038] Furthermore, in a preferred embodiment, the soil covering plate connecting rod 504-01 is provided with a plurality of evenly distributed connecting holes, which are used to adjust the installation height of the soil covering device 504 by connecting to the laying frame 501 through different connecting holes, thereby adjusting the soil covering height.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention.

[0040] Based on the above, this utility model also has the following embodiments:

[0041] In a further embodiment of this utility model, a self-propelled longitudinal sand willow barrier laying machine is disclosed, belonging to the field of sand willow barrier laying. This addresses the problems of existing sand willow barriers being primarily laid manually, resulting in low laying efficiency and high labor intensity; and existing laying machines being only suitable for soft materials and not for sand willow curtains. The machine includes a cab 1 for overall control, a chassis 2, a tray assembly for storing sand willows 3, and a sand willow laying device 5 for barrier laying. During operation, a ditching plow 507 under the frame 4 digs a ditch under the control of the cab 1, moving the machine a short distance. Sand willow curtains are inserted into the ditch under the guidance of the guide trough 11 and the ditching plow 507, forming an upright sand barrier. The sand ditch forming the barrier is then covered and compacted by a soil covering device 504 and a compaction wheel 506. The seedling guide chamber 502 at the end of the guide channel 11 can form a neat sand barrier of the same height; two sand barrier trays 3 are set up, which can be flexibly switched during operation; the height of the machine body can be adjusted by adjusting the screw, which plays a role in supporting balance and controlling the trenching depth and the height of the sand barrier; saving manpower.

[0042] In a further embodiment of this utility model, there is a tray assembly 3, a frame 4, and a sand barrier laying device 5 for winding sand willow curtains. During operation, the ditching plow 507 under the frame 4 moves a short distance under the control of the power system 102 to open a ditch. The sand willow curtain is inserted into the ditch under the guidance of the guide trough 11 and the ditching plow 507, forming an upright sand barrier. The sand ditch forming the sand barrier is covered and compacted by the soil covering device 504 and the pressing wheel 506. The sand willow curtain bundle 14 and the guide trough 11 on the frame 4 are on the same horizontal line and inclined at a 30° angle to the ground. When the sand willow curtain moves in the guide trough 11, the seedling guide chamber 502 at the end of the guide trough 11 limits the top of the sand willow, so as to form a regular sand willow sand barrier of the same height. The entire device is equipped with six sand willow tray groups 3, which can be flexibly switched during operation, saving manpower. In addition, the sand willow curtain laid by this utility model is a rigid material. Compared with the existing laying machine that presses the straw curtain into the ground, the sand willow curtain of this utility model is buried. The structure is simpler, the operation is more convenient, and the efficiency is higher.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-propelled longitudinal sand willow barrier laying machine, characterized in that, include: The cab (1), chassis (2), pallet assembly (3), frame (4) and sand willow laying device (5) are all mounted on the chassis (2). The cab (1) and the frame (4) are connected. The sand willow laying device (5) is mounted on the frame (4) and located behind the cab (1). Multiple pallet assemblies (3) are rotatably mounted on the frame (4) and symmetrically arranged on the left and right sides of the sand willow laying device (5). The pallet assembly (3) is used to carry sand willow curtain bundles (14). The cab (1) is used to carry operators. The chassis (2) is used for walking. The sand willow laying device (5) is used to lay sand willow sand barriers. The operators control the operation of the chassis (2) and the sand willow laying device (5) through the cab (1). The cab (1) includes: a center console (101), a power system (102), a seat (103) and a cab floor (104). The center console (101), the power system (102) and the seat (103) are all installed on the cab floor (104). The cab floor (104) is connected to the chassis (2). The chassis (2) includes: a chassis main support frame (201), tracks (202) and a gearbox (203). Two tracks (202) are symmetrically installed on the left and right sides of the chassis main support frame (201). The gearbox (203) is installed inside the chassis main support frame (201). The drive ends of the two tracks (202) are connected to the output end of the gearbox (203). The input end of the gearbox (203) is connected to the power system (102). The frame (4) includes: a sand willow curtain guide post (6), a flow channel guard plate (7), a frame front baffle (8), a marking rod (9), a marking rod slot (10), a flow channel (11), a frame bottom bracket (12), a bottom plate reinforcing rib (13), and a frame top cover plate (15). Two symmetrical frame top covers plate (15) are installed on the upper surface of the frame bottom bracket (12). The frame bottom bracket (12) is mounted on the chassis (2). The bottom surface of the frame bottom bracket (12) is connected to the bottom plate reinforcing rib (13). Two corners on the front side of the frame bottom bracket (12) are connected to... The lower end of each marking rod (9) is engaged with a bottom bracket (12) of the frame. The two ends of the front baffle (8) of the frame are connected to the two marking rods (9) respectively. Two symmetrical guide groove guards (7) are installed on the bottom bracket (12) of the frame. The two guide groove guards (7) are located between the two upper cover plates (15) of the frame. The two guide groove guards (7) are provided with guide grooves (11). At least one sand willow curtain guide column (6) is installed on each upper cover plate (15) of the frame. The guide groove (11) and the sand willow curtain guide column (6) are both used to guide the sand willow curtain.

2. The self-propelled longitudinal sand willow barrier laying machine according to claim 1, characterized in that, The pallet assembly (3) includes: a pallet steel pipe (301), a pallet (302), a pallet mounting angle steel (303), a pallet bearing seat (304), and a pallet pressure sleeve (305). The lower end of the pallet steel pipe (301) is connected to the upper end of the pallet pressure sleeve (305) and is coaxially arranged. The pallet pressure sleeve (305) is rotatably installed in the pallet bearing seat (304). The pallet bearing seat (304) is installed on the upper cover plate (15) of the frame located on the left or right side. The pallet mounting angle steel (303) is installed at the lower end of the pallet steel pipe (301). The pallet (302) is sleeved on the pallet steel pipe (301) and connected to the pallet mounting angle steel (303). The pallet steel pipe (301) is used to wind the sand willow curtain bundle (14). The pallet (302) has a disc-shaped structure and is used to carry the sand willow curtain bundle (14).

3. The self-propelled longitudinal sand willow barrier laying machine according to claim 2, characterized in that, The sand willow paving device (5) includes: a paving frame (501), a soil covering device (504), a connecting wall panel (505), a pressing wheel (506), a furrowing plow (507), and furrow opener arms (508). The two furrow opener arms (508) are symmetrically arranged on the left and right sides and are both installed on the frame (4). The two furrow opener arms (508) are respectively rotatably installed on the left and right sides of the front end of the paving frame (501). The bottom of the paving frame (501) is equipped with... The trenching plow (507) has a soil covering device (504) installed on the left and right sides of the rear end of the laying frame (501). The height of the two soil covering devices (504) is adjustable. The rear end of the laying frame (501) is provided with a rotatable pressing wheel (506). The two ends of the pressing wheel (506) are connected to the laying frame (501) through a connecting wall plate (505). The installation height of the connecting wall plate (505) on the laying frame (501) is adjustable.

4. The self-propelled longitudinal sand willow barrier laying machine according to claim 3, characterized in that, The sand willow laying device (5) also includes a seedling guide chamber (502) and a cylinder liner (503). The seedling guide chamber (502) and the cylinder liner (503) are both installed on the laying frame (501). The seedling guide chamber (502) is open to the front and located in front of the cylinder liner (503).

5. The self-propelled longitudinal sand willow barrier laying machine according to claim 4, characterized in that, Also includes: The hydraulic drive cylinder is rotatably connected to the frame (4) at one end and rotatably connected to the top of the cylinder sleeve (503) at the other end. The hydraulic drive cylinder is used to pull the sand willow laying device (5) to rotate around its front end.

6. The self-propelled longitudinal sand willow barrier laying machine according to claim 5, characterized in that, The soil covering device (504) includes: a soil covering plate connecting rod (504-01) and a soil covering plate (504-02). The lower ends of the soil covering plate (504-02) and the soil covering plate connecting rod (504-01) are connected. The upper end of the soil covering plate connecting rod (504-01) passes through the left or right side of the rear end of the laying frame (501). The soil covering plate connecting rod (504-01) is provided with a plurality of connecting holes that are equally spaced along its axial direction.

7. The self-propelled longitudinal sand willow barrier laying machine according to claim 6, characterized in that, The trenching plow (507) includes: a trench guard plate (507-01), a trench guide plate (507-02), and a soil cutting plate (507-03). The two trench guard plates (507-01) are symmetrically arranged on the left and right and are installed at the bottom of the laying frame (501). The two trench guard plates (507-01) are respectively connected to two guide channel guard plates (7). The front end of each trench guard plate (507-01) is connected to the trench guide plate (507-02) and the soil cutting plate (507-03).

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