A method and device for repairing grassland patch sand

Abstract

The invention relates to the technical field of grassland sand restoration, and specifically to a method and device for restoring grassland patch sand, comprising the following steps: first, injecting a sand-fixing agent and water-fertilizer into a tank body through a feed port, neatly placing a degradable plastic film into a film-covering box, and dragging a frame by a tractor to move horizontally on the patch sand; second, mixing the sand-fixing agent and the water-fertilizer into a mixed liquid; third, mixing the mixed liquid with sand to form wet soil; fourth, a leveling electric cylinder drives a leveling block to drive a leveling scraper to scrape left and right to level the wet soil; fifth, covering the leveled wet soil; sixth, making rows of horizontal sand barrier strips on the film-covered wet soil; seventh, making rows of vertical sand barrier strips on the film-covered wet soil; and eighth, after the sand barrier grids are laid, sowing grass seeds into the sand barrier grids by air. The invention can improve the water-fixing effect of sand when setting the sand barrier, thereby improving the survival rate of plants, shortening the cycle of sand restoration, and achieving better sand restoration effect.

Description

Technical Field

[0001] The invention relates to the technical field of grassland sand restoration, and in particular to a method and device for restoring grassland patch sand. Background Art

[0002] At present, due to the impact of global climate change and overgrazing, grassland degradation or desertification occurs frequently, and the degraded area is expanding day by day. The grassland vegetation disappears to form patchy sandy land, which may further develop into large-scale degraded sandy land. Therefore, controlling the continued development of small-scale patchy sandy land is an effective way to control grassland desertification.

[0003] The existing Chinese patent with authorization announcement number CN111034408A discloses a method for repairing grassland patch sand land, including: step S1, digging a trench along the boundary of the patch sand land and the edge of one side facing the main wind direction; step S2, piling the excavated earth on one side of the main wind direction to form a soil pile windbreak wall; step S3, planting shrubs at the bottom of the trench along the boundary of one side of the main wind direction; step S4, covering the inner surface of the boundary of the patch sand land with a grid. This grassland patch sand land repair method has the advantage of effectively preventing soil and water loss in the patch sand land.

[0004] However, in actual application, the above device still has the following problems: it only forms sand barriers by planting shrubs and covering grids to control the direction and speed of wind and sand flow, thereby protecting seedlings and seeds from wind erosion and burial by quicksand, and achieving a repair method that prevents wind and sand and changes the force of wind. It cannot fundamentally improve the water-fixing effect of sand, resulting in the survival rate of planted grass seeds and shrubs is still not ideal. In addition, since the process of digging trenches and planting trees is time-consuming, the shrubs surrounding the sand patches grow relatively slowly, making it difficult to achieve a wind-proof effect in a short period of time, which prolongs the sand repair cycle and the repair effect is not ideal. Summary of the invention

[0005] The purpose of the present invention is to address the above-mentioned deficiencies and provide a method and device for repairing grassland patch sand, which can improve the water-fixing effect of sand when setting up sand barriers, thereby increasing the survival rate of plants, shortening the sand repair cycle, and achieving better sand repair effects.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A method for repairing grassland patchy sand land comprises the following steps: step 1, injecting a sand fixation agent and water fertilizer into a tank body through a feed inlet, neatly placing a degradable plastic film into a film covering box, and dragging a frame with a tractor to move horizontally on the patchy sand land;

[0008] Step 2: Mix the sand-fixing agent and the water-fertilizer to prepare a mixed liquid: the stirring motor drives the stirring main shaft to drive the main stirring blade to rotate during the stirring process, and the stirring driving gear on the stirring main shaft drives the sub-stirring blade on the stirring auxiliary shaft to rotate and stir through the stirring driven wheel, so that the sand-fixing agent and the water-fertilizer are quickly mixed into a mixed liquid, and the mixed liquid in the mixing tank is pumped out to the spray chamber through the pump body and the connecting pipe;

[0009] Step 3, mixing the mixed liquid and sand into wet soil: along the forward direction of the frame, a group of nozzles on the front upper side of the front tilling shaft first spray the mixed liquid on the sand, and the tilling motor drives the rotary tilling blades on the front tilling shaft to rotate through the tilling driving wheel, the tilling belt and the tilling driven wheel to preliminarily mix the mixed liquid and the sand. As the frame continues to move forward, the nozzles on the front upper side of the rear tilling shaft spray the mixed liquid on the preliminarily mixed sand for a second time, and the tilling motor drives the rotary tilling blades on the rear tilling shaft to rotate through the tilling driving wheel, the tilling belt and the tilling driven wheel to mix the mixed liquid and the sand for a second time, so that the mixed liquid and the sand are fully mixed into wet soil;

[0010] Step 4: The leveling electric cylinder drives the leveling block to drive the leveling scraper to scrape left and right to level the wet soil;

[0011] Step 5, covering the wet soil after leveling: the film pressing electric telescopic rod presses the degradable plastic film on the bottom of the film covering box, the film covering rotating motor drives the film covering rotating frame to rotate to the state where the suction cup faces upward, the film covering electric telescopic rod drives the film covering bracket to rise, so that the suction cup passes through the film covering opening and sucks the bottom layer of degradable plastic film, the film covering electric telescopic rod drives the film covering bracket to descend, the film covering rotating motor drives the film covering rotating frame to rotate to the state where the suction cup faces downward, the suction cup releases the degradable plastic film, and the degradable plastic film can be covered on the flat wet soil;

[0012] Step 6. Make rows of transverse sand barrier strips on the film-covered wet soil: drive the barrier frame downward through the barrier driving electric cylinder, so that the forming claws press the degradable plastic film and insert it into the wet soil, and the forming electric cylinder drives the sliding column to slide along the forming slide groove 1, and the forming claws are connected by rotating the fixed shaft 1, and the fixed shaft 2 slides along the forming slide groove 2, so that the claw tips of the two forming claws are closed to wrap the wet soil in the degradable plastic film, and when the cylindrical sealing column on the claw tip of the forming claw abuts, the cylindrical sealing column is heated by the heating wire to seal the degradable plastic film to form a transverse sand barrier strip;

[0013] Step 7, making rows of longitudinal sand barrier strips on the film-covered wet soil: after the grassland patch sand is covered with multiple rows of transverse sand barrier strips, turn the front of the tractor and move forward longitudinally on the patch sand, repeating steps 5 and 6, so that the grassland patch sand is covered with multiple rows of longitudinal sand barrier strips, and the sand barrier grids formed by adjacent transverse sand barrier strips and adjacent longitudinal sand barrier strips are protected from being eroded and buried by quicksand;

[0014] Step 8: After the sand barrier grid is laid, sow grass seeds into the sand barrier grid.

[0015] A device for repairing grassland patch sand, including a tractor, characterized in that: a frame detachably connected to the tractor, a lifting frame slidably connected to the frame, a plurality of lifting electric cylinders used to drive the lifting frame to rise or fall, a tilling component, a leveling component and a sand barrier component are sequentially arranged on the lifting frame from front to back along the forward direction of the frame, the frame is provided with a spraying system, the spraying system is used to spray a mixture of sand fixation agent, water and fertilizer on the sand, the tilling component is used to mix the mixture and sand into wet soil, the leveling component is used to level the wet soil, a sand barrier is set on the leveled wet soil by the sand barrier component, and the lifting electric cylinder is fixed to the frame.

[0016] Furthermore, the spraying system includes a mixing tank fixed on the frame, a spraying seat fixed at the bottom of the lifting frame, a spraying chamber arranged in the spraying seat, a connecting pipe used to connect the mixing tank and the spraying chamber, and two groups of nozzles arranged at the bottom of the spraying seat. A pump body is arranged on the connecting pipe, and the pump body is arranged close to the mixing tank.

[0017] Furthermore, the mixing tank includes a tank body, a feed port and a stirring motor arranged on the top of the tank body, a stirring main shaft rotatably connected to the tank body, a plurality of stirring auxiliary shafts arranged around the stirring main shaft, a stirring driving gear arranged on the stirring main shaft, a stirring driven wheel arranged on the stirring auxiliary shaft, the output shaft of the stirring motor drivingly connected to the stirring main shaft, the stirring driving gear meshing with the stirring driven wheel, a plurality of main stirring blades are arranged on the stirring main shaft, a plurality of sub-stirring blades are arranged on the stirring auxiliary shaft, the main stirring blades and the sub-stirring blades are staggered, and the stirring auxiliary shaft is rotatably connected to the tank body.

[0018] Furthermore, the nozzles are provided in two groups; the tilling assembly includes a tilling frame fixed on the lifting frame, a front tilling shaft and a rear tilling shaft rotatably connected to the tilling frame, a tilling motor fixed on the tilling frame, two tilling driving wheels being driven and connected to the output shaft of the tilling motor, the front tilling shaft and the rear tilling shaft are respectively provided with tilling driven wheels, the tilling driving wheels and the tilling driven wheels are connected by a tilling belt, the two groups of nozzles are respectively provided on the front upper side of the front tilling shaft and the front upper side of the rear tilling shaft, the front tilling shaft and the rear tilling shaft are respectively provided with a plurality of rotary tilling blades, the plurality of rotary tilling blades are respectively provided with equal angles with the axis of the front tilling shaft or the rear tilling shaft as the center, and the blade edges of the rotary tilling blades in the same direction have the same direction.

[0019] Furthermore, the leveling assembly includes a leveling frame fixed on the lifting frame, a leveling rail arranged at the bottom of the leveling frame, a leveling block slidably connected to the leveling rail, a leveling scraper fixed at the top end on the leveling block, and a leveling electric cylinder fixed on the leveling frame, and the movable end of the leveling electric cylinder is driven and connected to the leveling block.

[0020] Furthermore, the sand barrier assembly includes a film coating mechanism and a barrier forming mechanism installed on the lifting frame, the film coating mechanism is used to coat the wet soil with film, and the barrier forming mechanism is used to form sand barrier strips with the film and the wet soil.

[0021] Furthermore, the coating mechanism includes a coating box fixed on the lifting frame symmetrically, a coating support symmetrically arranged on the left and right, a coating electric telescopic rod used to drive the coating support to rise or fall, a coating rotating motor fixed on the coating support, the output shaft of the coating rotating motor extends horizontally and is driven and connected to the coating rotating frame, the coating rotating frame is provided with a film suction rod, the film suction rod is provided with a plurality of suction cups, a coating pressing frame is fixed on the lifting frame, the coating pressing frame is provided with a film pressing electric telescopic rod, a coating pressing plate is connected to the coating box for sliding up and down, the piston rod head of the coating electric telescopic rod extends vertically downward for driving and connecting to the coating pressing plate, and a coating opening is provided at the bottom of the coating box facing the film suction rod.

[0022] Further, the obstacle forming mechanism includes an obstacle forming frame slidably connected to the lifting frame up and down, an obstacle forming driving electric cylinder used to drive the obstacle forming frame to rise or fall, a forming electric cylinder with a top fixed on the obstacle forming frame, a forming frame fixed on the forming electric cylinder, a forming slide groove 1 arranged on the forming frame, a sliding column slidably connected to the forming slide groove 1, a fixed shaft 1 symmetrically fixed to the forming frame on the left and right, a triangular connecting frame symmetrically arranged front and back, a forming claw rotatably connected to the fixed shaft 1 at one end, a connecting block arranged on the forming claw, and a fixed shaft 2 fixed on the connecting block, the forming electric cylinder is used to drive the sliding column to slide along the forming slide groove 1, a forming slide groove 2 is symmetrically arranged on the triangular connecting frame on the left and right, and the end of the fixed shaft 2 is slidably connected in the forming slide groove 2, and the claw tips of the forming claws are respectively provided with cylindrical sealing columns, and heating wires are arranged in the cylindrical sealing columns. When the forming claws are in a closed state, the two opposite cylindrical sealing columns abut against each other, and the heating wire is used to intermittently heat the cylindrical sealing columns.

[0023] Furthermore, it also includes a control box installed on the frame, and the lifting electric cylinder, tillage component, leveling component, sand barrier component and spraying system are all electrically connected to the control box.

[0024] The beneficial effects of the present invention are:

[0025] In actual applications, when the tractor pulls the frame forward, the lifting electric cylinder drives the lifting frame to descend, and the mixed liquid is sprayed onto the sand through the spraying system. The mixed liquid and sand are mixed into wet soil through the tilling component, the wet soil is leveled through the leveling component, and a sand barrier is set on the leveled wet soil through the sand barrier component. The present invention can improve the water-fixing effect of sand when setting the sand barrier, thereby improving the survival rate of plants, shortening the sand restoration period, and achieving a better sand restoration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a diagram of the method steps of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the present invention from a first viewing angle;

[0028] Figure 3 is a structural schematic diagram of the second viewing angle of the present invention;

[0029] Figure 4 It is a left side view of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure inside the mixing tank of the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the spraying system and the tilling assembly in the present invention;

[0032] Figure 7 It is a structural schematic diagram of the flattening component and the laminating mechanism in the present invention;

[0033] Figure 8 It is a structural schematic diagram of the obstacle forming mechanism in the present invention;

[0034] Figure numerals: frame 1; lifting frame 2; lifting electric cylinder 3; tilling assembly 4; tilling frame 41; front tilling shaft 42; rear tilling shaft 43; tilling motor 44; tilling driving wheel 441; tilling driven wheel 45; tilling belt 46; rotary tilling blade 47; leveling assembly 5; leveling frame 51; leveling rail 52; leveling block 53; leveling scraper 54; leveling electric cylinder 55; sand barrier assembly 6; film coating box 611; film coating bracket 612; film coating electric telescopic rod 613; film coating rotating motor 614; film coating rotating frame 615; film suction rod 616; suction cup 617; film coating pressing frame 618; film pressing electric telescopic rod 619; barrier frame 6 21; obstacle driving electric cylinder 622; forming frame 623; forming slide 6231; fixed shaft 6232; slide column 624; forming electric cylinder 625; triangular connecting frame 626; forming slide 6261; forming claw 627; connecting block 6271; fixed shaft 6272; cylindrical sealing column 628; spraying system 7; mixing tank 71; tank body 711; feed port 712; stirring motor 713; stirring main shaft 714; stirring driving gear 7141; main stirring blade 7142; stirring auxiliary shaft 715; stirring driven wheel 7151; sub-stirring blade 7152; spray seat 72; connecting pipe 73; nozzle 74. DETAILED DESCRIPTION

[0035] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0036] like Figure 1-8 As shown, a method for repairing grassland patch sand includes the following steps: Step 1, injecting sand fixation agent and water fertilizer into the tank 711 through the feed port 712, neatly placing the degradable plastic film into the film covering box 611, and dragging the frame 1 with a tractor to move horizontally on the patch sand;

[0037] Step 2: Mix the sand-fixing agent and the water-fertilizer to prepare a mixed liquid: the stirring motor 713 drives the stirring main shaft 714 to drive the main stirring blade 7142 to rotate and stir. During the stirring process, the stirring driving gear 7141 on the stirring main shaft 714 drives the sub-stirring blade 7152 on the stirring auxiliary shaft 715 to rotate and stir through the stirring driven wheel 7151, so that the sand-fixing agent and the water-fertilizer are quickly mixed into a mixed liquid, and the mixed liquid in the mixing tank 71 is pumped out to the spraying chamber through the pump body and the connecting pipe 73;

[0038] Step 3, mixing the mixed liquid and the sand into wet soil: along the forward direction of the frame 1, a group of nozzles 74 on the front upper side of the front tilling shaft 42 first spray the mixed liquid on the sand, and the tilling motor 44 drives the rotary tilling blades 47 on the front tilling shaft 42 to rotate through the tilling driving wheel 441, the tilling belt 46 and the tilling driven wheel 45 to preliminarily mix the mixed liquid and the sand. As the frame 1 continues to move forward, the nozzles 74 on the front upper side of the rear tilling shaft 43 spray the mixed liquid on the preliminarily mixed sand for a second time, and the tilling motor 44 drives the rotary tilling blades 47 on the rear tilling shaft 43 to rotate through the tilling driving wheel 441, the tilling belt 46 and the tilling driven wheel 45 to mix the mixed liquid and the sand for a second time, so that the mixed liquid and the sand are fully mixed into wet soil;

[0039] Step 4: The leveling electric cylinder 55 drives the leveling block 53 to drive the leveling scraper 54 to scrape left and right to level the wet soil;

[0040] Step 5: Laminating the wet soil after leveling: the film pressing electric telescopic rod 619 presses the degradable plastic film tightly against the bottom of the film laminating box 611, the film laminating rotating motor 614 drives the film laminating rotating frame 615 to rotate until the suction cup 617 faces upward, the film laminating electric telescopic rod 613 drives the film laminating support 612 to rise, so that the suction cup 617 passes through the film laminating opening and sucks the bottom layer of the degradable plastic film, the film laminating electric telescopic rod 613 drives the film laminating support 612 to descend, the film laminating rotating motor 614 drives the film laminating rotating frame 615 to rotate until the suction cup 617 faces downward, the suction cup 617 releases the degradable plastic film, and the degradable plastic film can be covered on the flat wet soil;

[0041] Step 6, making rows of transverse sand barrier strips on the film-covered wet soil: the barrier-forming electric cylinder 622 drives the barrier-forming frame 621 to move downward, so that the forming claw 627 presses the degradable plastic film and inserts it into the wet soil, and the forming electric cylinder 625 drives the sliding column 624 to slide along the forming slide groove 1 6231, and the forming claw 627 is rotated and connected by the fixed shaft 1 6232, and the fixed shaft 2 6272 slides along the forming slide groove 2 6261, so that the claw tips of the two forming claws 627 are closed together, and the wet soil is wrapped in the degradable plastic film. When the cylindrical sealing column 628 on the claw tip of the forming claw 627 abuts, the cylindrical sealing column 628 is heated by the heating wire to seal the degradable plastic film to form a transverse sand barrier strip;

[0042] Step 7, making rows of longitudinal sand barrier strips on the film-covered wet soil: after the grassland patch sand is covered with multiple rows of transverse sand barrier strips, turn the front of the tractor and move forward longitudinally on the patch sand, repeating steps 5 and 6, so that the grassland patch sand is covered with multiple rows of longitudinal sand barrier strips, and the sand barrier grids formed by adjacent transverse sand barrier strips and adjacent longitudinal sand barrier strips are protected from being eroded and buried by quicksand;

[0043] Step 8: After the sand barrier grid is laid, sow grass seeds into the sand barrier grid.

[0044] like Figure 1-8 As shown, a repairing device for grassland patch sand includes a tractor, characterized in that: a frame 1 detachably connected to the tractor, a lifting frame 2 slidably connected to the frame 1, a plurality of lifting electric cylinders 3 used to drive the lifting frame 2 to rise or fall, a tilling component 4, a leveling component 5 and a sand barrier component 6 are sequentially arranged on the lifting frame 2 from front to back along the forward direction of the frame 1, a spraying system 7 is arranged on the frame 1, and the spraying system 7 is used to spray a mixture of sand fixation agent, water and fertilizer on the sand, the tilling component 4 is used to mix the mixture and sand into wet soil, the leveling component 5 is used to level the wet soil, and a sand barrier is set on the leveled wet soil through the sand barrier component 6, and the lifting electric cylinder 3 is fixed on the frame 1.

[0045] In actual application, when the tractor pulls the frame 1 forward, the lifting electric cylinder 3 drives the lifting frame 2 to descend, and the mixed liquid is sprayed onto the sand through the spraying system 7, the mixed liquid and sand are mixed into wet soil through the tilling component 4, the wet soil is leveled through the leveling component 5, and a sand barrier is set on the leveled wet soil through the sand barrier component 6; when setting the sand barrier, the water-fixing effect of the sand can be improved, thereby improving the survival rate of plants, shortening the sand restoration cycle, and achieving a better sand restoration effect.

[0046] like Figure 1-8 As shown, the spraying system 7 includes a mixing tank 71 fixed on the frame 1, a spraying seat 72 fixed at the bottom of the lifting frame 2, a spraying chamber arranged in the spraying seat 72, a connecting pipe 73 used to connect the mixing tank 71 and the spraying chamber, and two groups of nozzles 74 arranged at the bottom of the spraying seat 72. A pump body is provided on the connecting pipe 73, and the pump body is arranged close to the mixing tank 71. In this embodiment, the sand-fixing agent and the water-fertilizer are mixed into a mixed liquid through the mixing tank 71, and the mixed liquid in the mixing tank 71 is pumped out to the spraying chamber through the pump body and the connecting pipe 73, and the mixed liquid is sprayed onto the sand through the nozzle 74.

[0047] like Figure 1-8As shown, the mixing tank 71 includes a tank body 711, a feed port 712 and a stirring motor 713 arranged at the top of the tank body 711, a stirring main shaft 714 rotatably connected to the tank body 711, a plurality of stirring auxiliary shafts 715 arranged around the stirring main shaft 714, a stirring driving gear 7141 arranged on the stirring main shaft 714, and a stirring driven wheel 7151 arranged on the stirring auxiliary shaft 715. The output shaft of the stirring motor 713 is drivingly connected to the stirring main shaft 714, the stirring driving gear 7141 is meshed with the stirring driven wheel 7151, the stirring main shaft 714 is provided with a plurality of main stirring blades 7142, and the stirring auxiliary shaft 715 is provided with a plurality of The main stirring blade 7142 and the sub-stirring blade 7152 are staggered, and the auxiliary stirring shaft 715 is rotatably connected to the tank body 711; in this embodiment, the sand-fixing agent and water-fertilizer are injected into the tank body 711 through the feed port 712, and the stirring motor 713 drives the stirring main shaft 714 to drive the main stirring blade 7142 to rotate and stir. During the stirring process, the stirring driving gear 7141 on the stirring main shaft 714 drives the sub-stirring blade 7152 on the auxiliary stirring shaft 715 to rotate and stir through the stirring driven wheel 7151, so that the sand-fixing agent, water and fertilizer are quickly mixed into a mixed liquid. The ratio of the sand-fixing agent to the water-fertilizer is 2~3:1, and the sand-fixing agent uses the Bingrui brand farmland windbreak and sand-fixing agent.

[0048] like Figure 1-8As shown, the nozzles 74 are provided with two groups; the tilling assembly 4 includes a tilling frame 41 fixed on the lifting frame 2, a front tilling shaft 42 and a rear tilling shaft 43 rotatably connected to the tilling frame 41, a tilling motor 44 fixed on the tilling frame 41, and two tilling driving wheels 441 are driven and connected to the output shaft of the tilling motor 44, and the front tilling shaft 42 and the rear tilling shaft 43 are respectively provided with tilling driven wheels 45, and the tilling driving wheels 441 and the tilling driven wheels 45 are connected by a tilling belt 46, and the two groups of nozzles 74 are respectively arranged on the front upper side of the front tilling shaft 42 and the front upper side of the rear tilling shaft 43, and the front tilling shaft 42 and the rear tilling shaft 43 are respectively provided with a plurality of rotary tilling blades 47, and the plurality of rotary tilling blades 47 are connected to the front tilling shaft 42 or the rear tilling shaft 43. The axes of the rear tilling shaft 43 are arranged at equal angles as the center, and the blade edges of the rotary tilling blades 47 in the same direction are in the same direction; in this embodiment, along the forward direction of the frame 1, a group of nozzles 74 on the upper front side of the front tilling shaft 42 first spray the mixed liquid on the sand, and the tilling motor 44 drives the rotary tilling blades 47 on the front tilling shaft 42 to rotate through the tilling driving wheel 441, the tilling belt 46 and the tilling driven wheel 45, so as to preliminarily mix the mixed liquid and the sand. As the frame 1 continues to move forward, the nozzles 74 on the upper front side of the rear tilling shaft 43 spray the mixed liquid on the preliminarily mixed sand for a second time, and the tilling motor 44 drives the rotary tilling blades 47 on the rear tilling shaft 43 to rotate through the tilling driving wheel 441, the tilling belt 46 and the tilling driven wheel 45, so as to mix the mixed liquid and the sand for a second time, so that the mixed liquid and the sand are fully and evenly mixed, thereby improving the water-fixing effect of the sand and also improving the survival rate of the plants.

[0049] like Figure 1-8 As shown, the leveling assembly 5 includes a leveling frame 51 fixed on the lifting frame 2, a leveling rail 52 arranged at the bottom of the leveling frame 51, a leveling block 53 slidably connected to the leveling rail 52, a leveling scraper 54 fixed on the top of the leveling block 53, and a leveling electric cylinder 55 fixed on the leveling frame 51, and the movable end of the leveling electric cylinder 55 is drivingly connected to the leveling block 53; in this embodiment, the leveling block 53 is driven by the leveling electric cylinder 55 to drive the leveling scraper 54 to scrape left and right, so that the mixed wet soil is scraped flat.

[0050] like Figure 1-8As shown, the sand barrier assembly 6 includes a coating mechanism and a barrier forming mechanism installed on the lifting frame 2, the coating mechanism is used to coat the wet soil with a film, and the barrier forming mechanism is used to form sand barrier strips with the coating and the wet soil; in this embodiment, the wet soil is coated with a film by the coating mechanism, and the barrier forming mechanism forms sand barrier strips with the coating and the wet soil, and the transverse sand barrier strips and the longitudinal sand barrier strips are used to form a sand barrier grid to protect seedlings and seeds from being eroded and buried by quicksand, thereby achieving the effect of preventing wind and sand and changing wind, and the coating is a degradable plastic film.

[0051] like Figure 1-8 As shown, the coating mechanism includes a coating box 611 fixed on the lifting frame 2 symmetrically, a coating support 612 symmetrically arranged, a coating electric telescopic rod 613 used to drive the coating support 612 to rise or fall, a coating rotating motor 614 fixed on the coating support 612, the output shaft of the coating rotating motor 614 extends horizontally and is driven and connected to a coating rotating frame 615, the coating rotating frame 615 is provided with a film suction rod 616, and the film suction rod 616 is provided with a plurality of suction cups 617, a coating pressing frame 618 is fixed on the lifting frame 2, and a coating pressing electric telescopic rod 619 is provided on the coating pressing frame 618, a coating pressing plate is connected to the coating box 611 for sliding up and down movement, and the piston rod head of the coating electric telescopic rod 619 is vertically extended. The film laminating pressing plate is extended downward to drive and connect the film laminating pressing plate, and a film laminating opening is provided at the bottom of the film laminating box 611 opposite to the film absorbing rod 616; in this embodiment, the degradable plastic film is neatly placed in the film laminating box 611, and the degradable plastic film is pressed against the bottom of the film laminating box 611 by the film pressing electric telescopic rod 619, and the film laminating rotating motor 614 drives the film laminating rotating frame 615 to rotate to a state where the suction cup 617 faces upward, and the film laminating electric telescopic rod 613 drives the film laminating support 612 to rise, so that the suction cup 617 passes through the film laminating opening and absorbs the bottom layer of degradable plastic film, and the film laminating electric telescopic rod 613 drives the film laminating support 612 to descend, and the film laminating rotating motor 614 drives the film laminating rotating frame 615 to rotate to a state where the suction cup 617 faces downward, and the suction cup 617 releases the degradable plastic film, so that the degradable plastic film can be covered on the wet soil.

[0052] like Figure 1-8As shown, the obstacle forming mechanism includes an obstacle forming frame 621 slidably connected to the lifting frame 2, an obstacle forming driving electric cylinder 622 used to drive the obstacle forming frame 621 to rise or fall, a forming electric cylinder 625 with a top fixed on the obstacle forming frame 621, a forming frame 623 fixed on the forming electric cylinder 625, a forming slide groove 6231 arranged on the forming frame 623, a slide column 624 slidably connected to the forming slide groove 6231, and a slide column 624 symmetrically fixed to the forming frame The first fixed shaft 6232 on the first fixed shaft 6232, the triangular connecting frame 626 symmetrically arranged in the front and rear, the forming claw 627 rotatably connected to the first fixed shaft 6232 at one end, the connecting block 6271 arranged on the forming claw 627, and the second fixed shaft 6272 fixed on the connecting block 6271, the forming electric cylinder 625 is used to drive the slide column 624 to slide along the first forming slide groove 6231, and the second forming slide groove 6261 is symmetrically arranged on the left and right sides of the triangular connecting frame 626. The end of the second fixed shaft 6272 is slidably connected to the second forming slide groove 6261, and the claw tips of the forming claws 627 are respectively provided with cylindrical sealing columns 628, and heating wires are provided in the cylindrical sealing columns 628. When the forming claws 627 are in a closed state, the two facing cylindrical sealing columns 628 abut against each other, and the heating wires are used to intermittently heat the cylindrical sealing columns 628. In this embodiment, the barrier frame 621 is driven downward by the barrier driving electric cylinder 622 to make the forming claws 627 presses the degradable plastic film and inserts it into the wet soil. The forming electric cylinder 625 drives the sliding column 624 to slide along the forming slide groove 1 6231. The forming claw 627 is rotated and connected through the fixed shaft 1 6232, and the fixed shaft 2 6272 slides along the forming slide groove 2 6261, so that the claw tips of the two forming claws 627 are closed together to wrap the wet soil in the degradable plastic film. When the claw tips of the forming claws 627 are completely abutted, the cylindrical sealing column 628 heated by the heating wire seals the degradable plastic film to form a sand barrier strip.

[0053] like Figure 1-8 As shown, it also includes a control box installed on the frame 1, and the lifting electric cylinder 3, tilling component 4, leveling component 5, sand barrier component 6 and spraying system 7 are all electrically connected to the control box; in this embodiment, the lifting electric cylinder 3, tilling component 4, leveling component 5, sand barrier component 6 and spraying system 7 can be controlled by the control box.

[0054] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways without departing from the scope defined by the spirit of the present invention.

Claims

1. A device for repairing grassland patch sand, comprising a tractor, characterized in that: A frame (1) detachably connected to a tractor, a lifting frame (2) slidably connected to the frame (1) up and down, a plurality of lifting electric cylinders (3) used to drive the lifting frame (2) to rise or fall, a tillage component (4), a leveling component (5) and a sand barrier component (6) arranged on the lifting frame (2) in sequence from front to back along the forward direction of the frame (1), a spraying system (7) arranged on the frame (1), the spraying system (7) being used to spray a mixed liquid made of a sand fixation agent, water and fertilizer on the sand, the tillage component (4) being used to mix the mixed liquid and sand into wet soil, the leveling component (5) being used to level the wet soil, and a sand barrier being arranged on the leveled wet soil by means of the sand barrier component (6), and the lifting electric cylinders (3) being fixed on the frame (1); The sand barrier assembly (6) comprises a film coating mechanism and a barrier forming mechanism installed on the lifting frame (2), the film coating mechanism being used to coat the wet soil with a film, and the barrier forming mechanism being used to form a sand barrier strip by combining the film coating and the wet soil; The film coating mechanism comprises a film coating box (611) fixed symmetrically on the lifting frame (2), a film coating support (612) arranged symmetrically on the left and right, a film coating electric telescopic rod (613) used to drive the film coating support (612) to rise or fall, and a film coating rotating motor (614) fixed on the film coating support (612), the output shaft of the film coating rotating motor (614) extending horizontally and drivingly connected to the film coating rotating frame (615), and the film coating rotating frame (615) is provided with a film suction rod (616), a plurality of suction cups (617) are arranged on the film suction rod (616), a film pressing frame (618) is fixed on the lifting frame (2), a film pressing electric telescopic rod (619) is arranged on the film pressing frame (618), a film pressing plate is slidably connected up and down in the film pressing box (611), a piston rod head of the film pressing electric telescopic rod (619) extends vertically downward to drive and connect the film pressing plate, and a film pressing opening is arranged at the bottom of the film pressing box (611) directly opposite to the film suction rod (616); The obstacle forming mechanism comprises an obstacle forming frame (621) slidably connected to the lifting frame (2) up and down, an obstacle forming driving electric cylinder (622) used to drive the obstacle forming frame (621) to rise or fall, a forming electric cylinder (625) whose top end is fixed to the obstacle forming frame (621), a forming frame (623) fixed to the forming electric cylinder (625), a forming slide groove (6231) arranged on the forming frame (623), a sliding column (624) slidably connected to the forming slide groove (6231), a fixed shaft (6232) symmetrically fixed to the forming frame (623), a triangular connecting frame (626) symmetrically arranged frontward and rearward, a forming claw (627) with one end rotatably connected to the fixed shaft (6232), and a forming claw (627) arranged on the forming claw (627) ) on the connecting block (6271), and a second fixed shaft (6272) fixed on the connecting block (6271), the forming electric cylinder (625) is used to drive the sliding column (624) to slide along the first forming slide groove (6231), the second forming slide groove (6261) is symmetrically arranged on the triangular connecting frame (626), the end of the second fixed shaft (6272) is slidably connected in the second forming slide groove (6261), the claw tips of the forming claws (627) are respectively provided with cylindrical sealing columns (628), and the cylindrical sealing columns (628) are provided with heating wires. When the forming claws (627) are in a closed state, the two opposite cylindrical sealing columns (628) abut against each other, and the heating wire is used to intermittently heat the cylindrical sealing columns (628).

2. A grassland patch sand repair device according to claim 1, characterized in that: The spraying system (7) comprises a mixing tank (71) fixed on the vehicle frame (1), a spraying seat (72) fixed at the bottom of the lifting frame (2), a spraying chamber arranged in the spraying seat (72), a connecting pipe (73) used to connect the mixing tank (71) and the spraying chamber, and two groups of spray heads (74) arranged at the bottom of the spraying seat (72); a pump body is arranged on the connecting pipe (73), and the pump body is arranged close to the mixing tank (71).

3. A grassland patch sand repair device according to claim 2, characterized in that: The mixing tank (71) comprises a tank body (711), a feed port (712) and a stirring motor (713) arranged at the top of the tank body (711), a stirring main shaft (714) rotatably connected to the tank body (711), a plurality of stirring auxiliary shafts (715) arranged around the stirring main shaft (714), a stirring driving gear (7141) arranged on the stirring main shaft (714), a stirring driven wheel (7151) arranged on the stirring auxiliary shaft (715), and the stirring motor (713). The output shaft of the machine (713) is drivingly connected to the stirring main shaft (714); the stirring active gear (7141) is meshed with the stirring driven wheel (7151); a plurality of main stirring blades (7142) are provided on the stirring main shaft (7144); a plurality of sub-stirring blades (7152) are provided on the stirring auxiliary shaft (715); the main stirring blades (7142) and the sub-stirring blades (7152) are staggered; and the stirring auxiliary shaft (715) is rotatably connected to the tank body (711).

4. The device for repairing grassland patch sand according to claim 2, characterized in that: The nozzles (74) are provided in two groups; the tilling assembly (4) comprises a tilling frame (41) fixed on the lifting frame (2), a front tilling shaft (42) and a rear tilling shaft (43) rotatably connected to the tilling frame (41), a tilling motor (44) fixed to the tilling frame (41), the output shaft of the tilling motor (44) being drivingly connected to two tilling driving wheels (441), the front tilling shaft (42) and the rear tilling shaft (43) being respectively provided with tilling driven wheels (45), the tilling driving wheels (441) 441) is connected to the tilling driven wheel (45) through a tilling belt (46), the two groups of nozzles (74) are respectively arranged on the front upper side of the front tilling shaft (42) and the front upper side of the rear tilling shaft (43), and the front tilling shaft (42) and the rear tilling shaft (43) are respectively provided with a plurality of rotary tilling blades (47), the plurality of rotary tilling blades (47) are arranged at equal angles with the axis of the front tilling shaft (42) or the rear tilling shaft (43) as the center, and the blades of the rotary tilling blades (47) in the same direction have the same direction.

5. The device for repairing grassland patch sand according to claim 1, characterized in that: The leveling assembly (5) comprises a leveling frame (51) fixed on the lifting frame (2), a leveling rail (52) arranged at the bottom of the leveling frame (51), a leveling block (53) slidably connected to the leveling rail (52) left and right, a leveling scraper (54) with the top fixed on the leveling block (53), and a leveling electric cylinder (55) fixed on the leveling frame (51), wherein the movable end of the leveling electric cylinder (55) is drivingly connected to the leveling block (53).

6. The device for repairing grassland patch sand according to claim 1, characterized in that: It also includes a control box mounted on the frame (1), and the lifting electric cylinder (3), tillage component (4), leveling component (5), sand barrier component (6) and spraying system (7) are all electrically connected to the control box.

7. A method for repairing grassland patch sand, characterized in that: The grassland patch sand repair device according to any one of claims 1 to 6 comprises the following steps: step 1, injecting sand fixation agent and water fertilizer into the tank (711) through the feed port (712), neatly placing the degradable plastic film into the film covering box (611), and dragging the frame (1) with a tractor to move horizontally on the patch sand; Step 2: Mix the sand-fixing agent and the water-fertilizer to prepare a mixed liquid: the stirring motor (713) drives the stirring main shaft (714) to drive the main stirring blade (7142) to rotate and stir. During the stirring process, the stirring driving gear (7141) on the stirring main shaft (714) drives the sub-stirring blade (7152) on the stirring auxiliary shaft (715) to rotate and stir through the stirring driven wheel (7151), so that the sand-fixing agent and the water-fertilizer are quickly mixed into a mixed liquid, and the mixed liquid in the mixing tank (71) is pumped out to the spraying chamber through the pump body and the connecting pipe (73); Step 3, mixing the mixed liquid and the sand into wet soil: along the forward direction of the frame (1), a group of nozzles (74) on the front upper side of the front tilling shaft (42) first spray the mixed liquid onto the sand, and the tilling motor (44) drives the rotary tilling blades (47) on the front tilling shaft (42) to rotate through the tilling driving wheel (441), the tilling belt (46) and the tilling driven wheel (45) to initially mix the mixed liquid and the sand. As the frame (1) continues to move forward, the nozzles (74) on the front upper side of the rear tilling shaft (43) spray the mixed liquid on the initially mixed sand for a second time, and the tilling motor (44) drives the rotary tilling blades (47) on the rear tilling shaft (43) to rotate through the tilling driving wheel (441), the tilling belt (46) and the tilling driven wheel (45) to secondarily mix the mixed liquid and the sand, so that the mixed liquid and the sand are fully mixed into wet soil; Step 4: The leveling electric cylinder (55) drives the leveling block (53) to drive the leveling scraper (54) to scrape left and right to level the wet soil; Step 5, coating the wet soil after leveling: the film pressing electric telescopic rod (619) presses the degradable plastic film tightly against the bottom of the film coating box (611), the film coating rotating motor (614) drives the film coating rotating frame (615) to rotate to a state where the suction cup (617) faces upward, the film pressing electric telescopic rod (613) drives the film coating support (612) to rise, so that the suction cup (617) passes through the film coating opening and absorbs the bottom layer of the degradable plastic film, the film pressing electric telescopic rod (619) releases the degradable plastic film, the film pressing electric telescopic rod (613) drives the film coating support (612) to descend, the film coating rotating motor (614) drives the film coating rotating frame (615) to rotate to a state where the suction cup (617) faces downward, the suction cup (617) releases the degradable plastic film, and the degradable plastic film can be coated on the flat wet soil; Step 6: Making horizontal sand barrier strips in rows on the film-covered wet soil: The barrier-forming electric cylinder (622) drives the barrier-forming frame (621) to move downward, so that the two claw tips of the forming claw (627) are respectively close to the two ends of the degradable plastic film and are inserted into the wet soil against the degradable plastic film; the forming electric cylinder (625) drives the sliding column (624) to slide along the first forming slide groove (6231); the forming claw (627) is rotated and connected through the first fixed shaft (6232); the second fixed shaft (6272) slides along the second forming slide groove (6261), so that the claw tips of the two forming claws (627) are closed together in the wet soil, and the wet soil is wrapped in the degradable plastic film; when the cylindrical sealing columns (628) on the claw tips of the two forming claws (627) are in contact, the cylindrical sealing columns (628) are heated by the heating wire to seal the degradable plastic film, thereby forming horizontal sand barrier strips; Step 7, making rows of longitudinal sand barrier strips on the film-covered wet soil: after the grassland patch sand is covered with multiple rows of transverse sand barrier strips, turn the front of the tractor and move forward longitudinally on the patch sand, repeating steps 5 and 6, so that the grassland patch sand is covered with multiple rows of longitudinal sand barrier strips, and the sand barrier grids formed by adjacent transverse sand barrier strips and adjacent longitudinal sand barrier strips are protected from being eroded and buried by quicksand; Step 8: After the sand barrier grid is laid, sow grass seeds into the sand barrier grid.

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