A high and steep slope soil spraying and seeding grass planting device and method

Abstract

The application provides a high and steep slope guest soil spraying and planting device and method, and belongs to the technical field of greening and grass planting, and comprises a spraying and planting frame, a mixing box, a feeding mechanism, a screening mechanism, a driving mechanism and a spraying and planting mechanism; the mixing box is arranged on the side wall of the spraying and planting frame; the feeding mechanism is arranged on the side wall of the mixing box; the screening mechanism is arranged at the top end of the mixing box and is connected with the feeding mechanism; the driving mechanism is connected with the screening mechanism; and the spraying and planting mechanism is arranged in the interior and at the top end of the spraying and planting frame and is connected with the mixing box. The method adopts the above high and steep slope guest soil spraying and planting device, improves the quality of the guest soil spraying and greening through four spraying processes, and can effectively improve the germination rate and survival rate of plant seeds in the high and steep slope guest soil spraying by spraying and planting the wet guest soil, the shrub seed layer, the grass seed layer and the fiber protection layer in sequence.

Description

Technical Field

[0001] This invention belongs to the field of greening and grass planting technology, and more specifically, it relates to a device and method for topsoil spraying and grass planting on steep slopes. Background Technology

[0002] With the rapid growth of my country's social economy, a large number of exposed slopes have been formed due to the implementation of transportation, water conservancy, mining, power and other construction projects. These exposed slopes not only affect the ecological landscape, but some also pose geological disaster risks, seriously affecting the safety and stability of the main project. In slope greening and protection projects, topsoil spraying is a typical ecological protection construction technology. Topsoil spraying uses granulating agents to form a granular structure of topsoil, and reinforcing fibers play a network reinforcement role similar to plant roots and stems, thus creating a certain thickness of porous and stable soil structure that is resistant to rain and wind erosion, firm and breathable, and similar to or better than natural topsoil.

[0003] However, current hydroseeding devices typically require the addition of various materials such as topsoil, plant seeds, water-retaining agents, and adhesives, followed by the addition of water and thorough mixing. When adding topsoil, large particles can easily clog the device. Furthermore, existing hydroseeding devices for steep slopes are often mounted on trucks to expand the spraying range. When adding topsoil, a bulldozer is usually needed to scoop it up and lift it before pouring it into the inlet. When pouring out the topsoil, it can easily spill onto other areas of the device, making it difficult to clean. Moreover, workers often stand at the inlet to assist with feeding, posing a significant safety hazard. Summary of the Invention

[0004] The purpose of this invention is to provide a device and method for topsoil spraying and grass planting on steep slopes, in order to solve the technical problems existing in the prior art, such as the presence of impurities in the topsoil causing blockage of the device, difficulty in cleaning the device after feeding, and significant safety hazards.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a device for hydroseeding and planting grass on steep slopes, including a hydroseeding machine frame;

[0006] The mixing box is located on the side wall of the hydroseeding machine frame;

[0007] The feeding mechanism is located on the side wall of the mixing tank;

[0008] The screening mechanism is located at the top of the mixing box and is connected to the feeding mechanism;

[0009] The drive mechanism is connected to the screening mechanism;

[0010] The spraying mechanism is located inside and at the top of the spraying machine frame and is connected to the mixing tank;

[0011] The feeding mechanism includes a lifting frame, a first lifting trough, a second lifting trough, and a conveying hopper. The lifting frame is fixedly installed on the side wall of the mixing box. The first lifting trough is located on the side of the lifting frame close to the mixing box, and the second lifting trough is located on the side of the lifting frame away from the mixing box. The conveying hopper is movably installed inside the lifting frame. The screening mechanism includes a feeding hopper, lifting columns, a screening frame, and a cam. The feeding hopper is fixedly installed at the top center of the mixing box. There are four lifting columns, all movably installed at the top of the mixing box. The four lifting columns are located at the four corners of the feeding hopper. The screening frame is movably installed inside the mixing box and fixedly installed at the bottom of the four lifting columns. The cam is movably installed on the side wall of the feeding hopper and located above the lifting columns.

[0012] Furthermore, the feeding mechanism also includes a first lifting rod, a second lifting rod, a limiting groove, and a lifting plate. The first lifting rod is movably installed on the top of the conveying hopper near the mixing box by insertion. Both ends of the first lifting rod are movably installed in the first lifting groove by insertion. The second lifting rod is movably installed on the top of the conveying hopper away from the mixing box by insertion. Both ends of the second lifting rod are movably installed in the second lifting groove by insertion. The limiting groove is fixedly installed in the middle of the outer wall of the lifting frame. The end of the lifting plate near the mixing box is movably installed in the limiting groove by insertion.

[0013] Furthermore, the feeding mechanism also includes a movable slot, a lifting block, a threaded rod, and a motor frame. The movable slot is located at the end of the lifting plate away from the mixing box. The end of the second lifting rod located outside the side wall of the lifting frame is movably installed in the movable slot by insertion. The lifting block is fixedly installed on the side wall of the lifting plate located in the limiting slot. The two ends of the threaded rod are movably installed in the middle of the top and bottom ends of the limiting slot by insertion. The lifting block is movably sleeved on the threaded rod by thread. The motor frame is fixedly installed in the middle of the top of the lifting frame.

[0014] Furthermore, the feeding mechanism also includes a feeding motor, a first transmission belt, and a pouring plate. The feeding motor is fixedly installed at the top center of the motor frame. The two ends of the first transmission belt are respectively movably sleeved on the top of the output shaft and the top of the threaded rod of the feeding motor located inside the motor frame. The pouring plate is fixedly installed at the top of the feeding hopper and the top of the lifting frame near the mixing box.

[0015] Furthermore, the screening mechanism also includes a lifting frame, springs, support columns, a drive shaft, and a second drive belt. The lifting frame is movably sleeved on the outside of the feed hopper and is fixedly installed on the top of four lifting columns. There are four springs, each movably sleeved on one of the four lifting columns and located between the top of the mixing box and the lifting frame. There are four support columns, each fixedly installed on the top of the mixing box and located at the four corners of the feed hopper. There are two drive shafts, each movably installed on the top of two sets of support columns on the left and right sides by insertion. Cams are fixedly sleeved on both ends of the drive shaft by bolts and are slidably installed on the top of the lifting frame. The two ends of the second drive belt are movably sleeved on the two drive shafts.

[0016] Furthermore, the drive mechanism includes an engine, a mixing shaft, a mixing blade, a third transmission belt, a fourth transmission belt, and a shaft bracket. The engine is fixedly installed in the middle of the bottom of the spraying machine frame. The mixing shaft is movably installed in the middle of the mixing box by insertion. The mixing blade is fixedly sleeved on the mixing shaft by bolts. The bottom end of the third transmission belt is movably sleeved on the output shaft of the engine. The top end of the third transmission belt is movably sleeved on the end of the mixing shaft located outside the mixing box. The bottom end of the fourth transmission belt is movably sleeved on the end of the mixing shaft located outside the mixing box. The shaft bracket is fixedly installed in the middle of the right side of the top of the spraying machine frame.

[0017] Furthermore, the drive mechanism includes a first gear shaft, a first bevel gear, a second gear shaft, a second bevel gear, a fifth transmission belt, and a protective box. The first gear shaft is movably installed on the top of the shaft frame by insertion. The first bevel gear is fixedly sleeved on the end of the first gear shaft near the mixing box by bolts. The second gear shaft is movably installed on the top of the shaft frame by insertion. The second bevel gear is fixedly installed on the end of the second gear shaft near the first bevel gear. The top of the fourth transmission belt is movably sleeved on the end of the first gear shaft away from the first bevel gear. The two ends of the fifth transmission belt are respectively movably sleeved on the middle of the second gear shaft and a transmission shaft on the left side of the top of the mixing box. The protective box is fixedly installed on the middle of the right side of the top of the spraying machine frame and sleeved outside the shaft frame.

[0018] Furthermore, the spraying mechanism includes a high-pressure pump, a feed pipe, a discharge pipe, and a spray pipe. The high-pressure pump is fixedly installed inside the bottom of the spraying machine frame. One end of the feed pipe is fixedly installed inside the high-pressure pump by insertion, and the other end of the feed pipe is fixedly installed at the bottom of the mixing box by insertion. The bottom end of the discharge pipe is fixedly installed inside the high-pressure pump by insertion, and the spray pipe is movably connected to the top end of the discharge pipe.

[0019] Furthermore, the high and steep slope topsoil spraying and grass planting device also includes an outer frame and a vehicle body. The spraying machine frame, mixing box, feeding mechanism, screening mechanism, drive mechanism and spraying mechanism are all located inside the outer frame, which is located on the vehicle body.

[0020] A method for hydroseeding and planting grass on steep slopes includes the following steps:

[0021] S1. Clear away dangerous rocks and loose stones;

[0022] S2, Install the main anchor bolt;

[0023] S3. Lay wire mesh and planted grids;

[0024] S4. Install secondary anchor bolts;

[0025] S5, Spray-filled topsoil base course;

[0026] S6, Spraying shrub seed layer;

[0027] S7, Seed layer of sprayed grasses;

[0028] S8, sprayed fiber protective layer;

[0029] S9. Post-construction maintenance.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] 1. This invention, through the design and installation of a feeding mechanism and a screening mechanism, avoids soil spillage in other areas of the spraying device when soil is directly poured into the mixing box by a bulldozer by loading it into the hopper. This keeps the device clean during use, saving cleaning time. The hopper guides the soil into the mixing box, preventing workers from standing at the mixing box inlet and improving the safety of the device. The sieve frame, through its reciprocating vibration, traps large stones, preventing them from entering the mixing box and causing spray blockage. This improves the stability of the device during use and increases the efficiency of soil spraying.

[0032] 2. This invention improves the quality of topsoil hydroseeding through a four-stage hydroseeding process. By sequentially hydroseeding moist topsoil, shrub seed layer, grass seed layer, and fiber protective layer, the germination rate and survival rate of plant seeds in topsoil hydroseeding on steep slopes are effectively improved. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A schematic diagram of the overall structure of the topsoil spraying and grass planting device for steep slopes provided in an embodiment of the present invention;

[0035] Figure 2 This is a schematic diagram of the feeding mechanism of the topsoil spraying and grass planting device for steep slopes provided in an embodiment of the present invention;

[0036] Figure 3 The high and steep slope hydroseeding and grass planting device provided in the embodiments of the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0037] Figure 4 This is a schematic diagram of the internal structure of the mixing box of the topsoil spraying and grass planting device for steep slopes provided in an embodiment of the present invention.

[0038] Figure 5 A schematic diagram of the drive mechanism of the high and steep slope topsoil spraying and grass planting device provided in an embodiment of the present invention.

[0039] The labels for the attached figures are as follows:

[0040] 1. Hydroseeding machine frame; 2. Mixing tank;

[0041] 3. Feeding mechanism; 301. Lifting frame; 302. First lifting groove; 303. Second lifting groove; 304. Conveying hopper; 305. First lifting rod; 306. Second lifting rod; 307. Limiting groove; 308. Lifting plate; 309. Movable groove; 310. Lifting block; 311. Threaded rod; 312. Motor frame; 313. Feeding motor; 314. First transmission belt; 315. Discharge plate;

[0042] 4. Screening mechanism; 401. Feed hopper; 402. Lifting column; 403. Lifting frame; 404. Spring; 405. Screening frame; 406. Support column; 407. Drive shaft; 408. Cam; 409. Second drive belt;

[0043] 5. Drive mechanism; 501. Engine; 502. Mixing shaft; 503. Mixing blade; 504. Third transmission belt; 505. Fourth transmission belt; 506. Shaft bracket; 507. First gear shaft; 508. First bevel gear; 509. Second gear shaft; 510. Second bevel gear; 511. Fifth transmission belt; 512. Protective box;

[0044] 6. Spraying mechanism; 601. High-pressure pump; 602. Feed pipe; 603. Discharge pipe; 604. Spraying pipe. Detailed Implementation

[0045] To make the technical problems, technical solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of this application, not all of them. The specific embodiments described herein are only used to explain the invention and are not intended to limit the invention. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] It should be further noted that the accompanying drawings and embodiments of the present invention mainly describe the concept of the present invention. Based on this concept, some specific forms and arrangements of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of the present invention, they can implement the above-mentioned specific forms and arrangements in a well-known manner.

[0047] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0048] The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself. The terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0049] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0050] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0051] The present invention will now describe a device and method for topsoil spraying and grass planting on steep slopes.

[0052] like Figures 1 to 5 As shown, the first embodiment of the present invention provides a topsoil spraying and grass planting device for steep slopes, including a spraying frame 1, a mixing tank 2, a feeding mechanism 3, a screening mechanism 4, a driving mechanism 5, and a spraying mechanism 6. The mixing tank 2 is located on the side wall of the spraying frame 1; the feeding mechanism 3 is located on the side wall of the mixing tank 2; the screening mechanism 4 is located at the top of the mixing tank 2 and is connected to the feeding mechanism 3; the driving mechanism 5 is connected to the screening mechanism 4; and the spraying mechanism 6 is located inside and at the top of the spraying frame 1 and is connected to the mixing tank 2.

[0053] The feeding mechanism 3 includes a lifting frame 301, a first lifting groove 302, a second lifting groove 303, and a conveying hopper 304. The lifting frame 301 is fixedly installed on the side wall of the mixing box 2. The first lifting groove 302 is located on the side of the lifting frame 301 near the mixing box 2, and the second lifting groove 303 is located on the side of the lifting frame 301 away from the mixing box 2. The conveying hopper 304 is movably installed inside the lifting frame 301. The screening mechanism 4 includes a feeding hopper 401, a lifting column 402, and a screen. The material frame 405 and cam 408 are fixedly installed at the top center of the mixing box 2. There are four lifting columns 402, which are movably installed at the top of the mixing box 2. The four lifting columns 402 are respectively located at the four corners of the feeding hopper 401. The screening frame 405 is movably installed inside the mixing box 2. The screening frame 405 is fixedly installed at the bottom of the four lifting columns 402. The cam 408 is movably installed at the side end of the feeding hopper 401 and located above the lifting columns 402.

[0054] The feeding mechanism 3 also includes a movable groove 309, a lifting block 310, a threaded rod 311, and a motor frame 312. The movable groove 309 is located at the end of the lifting plate 308 away from the mixing box 2. The end of the second lifting rod 306 located outside the side wall of the lifting frame 301 is movably installed in the movable groove 309 by insertion. The lifting block 310 is fixedly installed on the side wall of the lifting plate 308 located in the limiting groove 307 by bolts. The two ends of the threaded rod 311 are movably installed in the middle of the top and bottom ends of the limiting groove 307 by insertion. The lifting block 310 is movably sleeved on the threaded rod 311 by threads. The motor frame 312 is fixedly installed in the middle of the top end of the lifting frame 301 by bolts. The threaded rod 311 is driven to rotate by the first transmission belt 314. When the threaded rod 311 rotates, it drives the lifting block 310 to rise under the limiting action of the limiting groove 307. The lifting block 310 then drives the lifting plate 308 to rise, and the lifting plate 308 drives the second lifting rod 306 to rise.

[0055] The feeding mechanism 3 also includes a feeding motor 313, a first transmission belt 314, and a deflecting plate 315. The feeding motor 313 is bolted to the top center of the motor frame 312. The two ends of the first transmission belt 314 are respectively movably sleeved on the top of the output shaft of the feeding motor 313 located inside the motor frame 312 and the top of the threaded rod 311. The deflecting plate 315 is bolted to the top of the feed hopper 401 and the top of the lifting frame 301 near the mixing box 2. The first lifting rod 305 rises in the first lifting groove 302, causing the second... The lifting rod 306 rises in the second lifting groove 303 and drives the material hopper 304 to rise. When the first lifting rod 305 rises to the top of the first lifting groove 302, the first lifting rod 305 stops rising. At this time, the threaded rod 311 continues to drive the second lifting rod 306 to rise. Under the guidance and limit of the second lifting groove 303, the second lifting rod 306 rotates around the first lifting rod 305 as an axis. At this time, the material hopper 304 is driven to flip, so that the soil in the material hopper 304 is poured out onto the pouring plate 315.

[0056] The screening mechanism 4 also includes a lifting frame 403, springs 404, support columns 406, a drive shaft 407, and a second drive belt 409. The lifting frame 403 is movably sleeved on the outside of the feed hopper 401. The lifting frame 403 is fixedly installed on the top of four lifting columns 402 by bolts. There are four springs 404, which are movably sleeved on the four lifting columns 402 and located between the top of the mixing box 2 and the lifting frame 403. There are four support columns 406, which are fixedly installed on the top of the mixing box 2 by bolts and located at the four corners of the feed hopper 401. There are two drive shafts 407, which are movably installed on the tops of two sets of support columns 406 located on the left and right sides by insertion. Cams 408 are fixedly sleeved on the drive shafts by bolts. At both ends of 407, cams 408 are slidably mounted on the top of the lifting frame 403, and the two ends of the second transmission belt 409 are respectively movably sleeved on the two transmission shafts 407. As the transmission shafts 407 rotate, the cams 408 rotate with the transmission shafts 407. When the end of the cam 408 away from the transmission shaft 407 rotates downward, it drives the lifting frame 403 to move downward. The lifting frame 403 drives the lifting column 402 to rotate, and the lifting column 402 drives the screen frame 405 to rotate. When the end of the cam 408 away from the transmission shaft 407 rotates upward, under the elastic force of the spring 404, the lifting frame 403 rises, and the lifting column 402 drives the screen frame 405 to rise, thereby driving the screen frame 405 to vibrate up and down.

[0057] The drive mechanism 5 includes an engine 501, a mixing shaft 502, a mixing blade 503, a third transmission belt 504, a fourth transmission belt 505, and a shaft bracket 506. The engine 501 is bolted to the bottom center of the spraying machine frame 1. The mixing shaft 502 is movably installed inside the mixing box 2. The mixing blade 503 is bolted to the mixing shaft 502. The bottom end of the third transmission belt 504 is movably sleeved on the output shaft of the engine 501, and the top end of the third transmission belt 504 is movably sleeved on the end of the mixing shaft 502 outside the mixing box 2. The bottom end of the fourth transmission belt 505 is movably sleeved on the end of the mixing shaft 502 outside the mixing box 2. The shaft bracket 506 is bolted to the top right center of the spraying machine frame 1. When the mixing shaft 502 rotates, it drives the mixing blade 503 to rotate, and the rotating mixing blade 503 mixes the topsoil material in the mixing box 2.

[0058] The drive mechanism 5 includes a first gear shaft 507, a first bevel gear 508, a second gear shaft 509, a second bevel gear 510, a fifth transmission belt 511, and a protective housing 512. The first gear shaft 507 is movably mounted on the top of the shaft bracket 506 by insertion. The first bevel gear 508 is bolted to the end of the first gear shaft 507 near the mixing box 2. The second gear shaft 509 is movably mounted on the top of the shaft bracket 506 by insertion. The second bevel gear 510 is bolted to the end of the second gear shaft 509 near the first bevel gear 508. The top of the fourth transmission belt 505 is movably mounted on the end of the first gear shaft 507 away from the first bevel gear 508. The fifth transmission belt 511... The two ends are respectively movably sleeved between the second gear shaft 509 and a drive shaft 407 on the left side of the top of the mixing box 2. The protective box 512 is fixedly installed on the middle right side of the top of the spraying machine frame 1 by bolts and sleeved on the outside of the shaft frame 506. The mixing shaft 502 is driven to rotate by the fifth drive belt 511. When the mixing shaft 502 rotates, the first gear shaft 507 is driven to rotate by the fourth drive belt 505. The first bevel gear 508 is driven to rotate by the first gear shaft 507. When the first bevel gear 508 rotates, the second bevel gear 510 is driven to rotate, so that the second gear shaft 509 follows the second bevel gear 510 to rotate. When the second bevel gear 510 rotates, the drive shaft 407 is driven to rotate by the third drive belt 504.

[0059] The hydroseeding mechanism 6 includes a high-pressure pump 601, a feed pipe 602, a discharge pipe 603, and a spray pipe 604. The high-pressure pump 601 is fixedly installed inside the bottom of the hydroseeding machine frame 1 by bolts and is connected to the power output shaft of the engine 501 to transmit power. One end of the feed pipe 602 is fixedly installed inside the high-pressure pump 601 by insertion, and the other end of the feed pipe 602 is fixedly installed at the bottom of the mixing box 2 by insertion. The bottom end of the discharge pipe 603 is fixedly installed inside the high-pressure pump 601 by insertion. The spray pipe 604 is movably connected to the top end of the discharge pipe 603. The feed pipe 602 sucks out the topsoil, and after the topsoil is transferred through the discharge pipe 603, it is sprayed out through the spray pipe 604.

[0060] An explosion-proof component is provided on the discharge pipe 603 to prevent the discharge pipe 603 from bursting due to blockage of the nozzle 604, thus avoiding a hazard. The explosion-proof component includes a cylindrical shell, one end of which is detachably and sealed to the discharge pipe 603, and the other end of which has an exhaust port. The portion of the discharge pipe 603 located inside the cylindrical shell has a through hole connecting the discharge pipe 603 and the interior of the cylindrical shell. A pressure relief component is attached to the through hole. The pressure relief component can break or fall off when the pressure difference between the two sides exceeds the rated threshold, so that the through hole connects the discharge pipe 603 and the interior of the cylindrical shell. Inside the cylindrical shell, from the end connected to the discharge pipe 603 to the other end, a piston, a buffer bladder, a first partition, a non-Newtonian fluid partition, a second partition, and a pressure regulating bladder are slidably arranged in sequence. The non-Newtonian fluid partition contains a shear-hardened non-Newtonian fluid. The pressure regulating bladder is connected to the exhaust port, and the exhaust port is equipped with a rubber plug. By using the vent and the rubber plug, air can be injected into or extracted from the pressure regulating airbag to adjust the pressure inside the cylindrical shell, ensuring that the pressure relief component is within a suitable working pressure range. When the nozzle 604 is blocked, the continued operation of the high-pressure pump 601 will cause a sharp increase in pressure inside the discharge pipe 603, resulting in damage or detachment of the pressure relief component. This allows the material in the discharge pipe 603 to enter the cylindrical shell and push the piston outward, applying pressure sequentially to the buffer airbag, the first partition, the non-Newtonian fluid partition, the second partition, and the pressure regulating airbag. This causes the rubber plug on the vent to pop open, releasing the gas from the pressure regulating airbag to reduce pressure and allow sufficient time for the engine 501 to stop. If the internal pressure of the discharge pipe 603 is too high, the piston will apply a large pressure to the buffer bladder for a short time and transmit it to the non-Newtonian fluid bladder. This will cause the shear-hardened non-Newtonian fluid inside the non-Newtonian fluid bladder to harden, thus blocking the pressure transmission and reducing the efficiency of pressure transmission to the pressure regulating bladder. This prevents excessive pressure from being rapidly transmitted to the pressure regulating bladder, causing the rubber stopper to pop open at high speed and causing a hazard. The first and second partitions are used to limit the positions of the buffer bladder, non-Newtonian fluid bladder, and pressure regulating bladder, preventing changes in their positions that would affect their use. The first and second partitions can be elastic structures to facilitate non-uniform deformation of the buffer bladder, non-Newtonian fluid bladder, and pressure regulating bladder.

[0061] Furthermore, the high and steep slope topsoil spraying and grass planting device also includes an outer frame and a vehicle body. The spraying frame 1, the mixing box 2, the feeding mechanism 3, the screening mechanism 4, the driving mechanism 5 and the spraying mechanism 6 are all located inside the outer frame, which is mounted on the vehicle body.

[0062] Working principle: When using this invention, such as... Figure 2 and Figure 3 As shown, the topsoil is filled into the material hopper 304, and the feeding motor 313 is started. After the feeding motor 313 starts, it drives the threaded rod 311 to rotate through the first transmission belt 314. When the threaded rod 311 rotates, under the limiting action of the limiting groove 307, it drives the lifting block 310 to rise. The lifting block 310 then drives the lifting plate 308 to rise, and the lifting plate 308 drives the second lifting rod 306 to rise, so that the first lifting rod 305 rises in the first lifting groove 302, and the second lifting rod 306 rises in the first lifting groove 306. The material rises in the second lifting groove 303 and drives the material hopper 304 to rise through the second lifting rod 306. When the first lifting rod 305 rises to the top of the first lifting groove 302, the first lifting rod 305 stops rising. At this time, the threaded rod 311 continues to drive the second lifting rod 306 to rise. Under the guidance and limit of the second lifting groove 303, the second lifting rod 306 rotates around the first lifting rod 305 as an axis. At this time, the material hopper 304 is driven to flip, so that the soil in the material hopper 304 is poured out onto the pouring plate 315.

[0063] After that, as Figure 1 , Figure 4 and Figure 5As shown, the soil on the discharge plate 315 falls into the feed hopper 401. The soil in the feed hopper 401 falls onto the screen frame 405. The engine 501 is started, and the mixing shaft 502 is driven to rotate via the fifth transmission belt 511. When the mixing shaft 502 rotates, the first gear shaft 507 is driven to rotate via the fourth transmission belt 505. The first bevel gear 508 is driven to rotate via the first gear shaft 507. When the first bevel gear 508 rotates, it drives the second bevel gear 510 to rotate, causing the second gear shaft 509 to rotate with the second bevel gear 510. When the second bevel gear 510 rotates, the transmission shaft 407 is driven to rotate via the third transmission belt 504, causing the cam 408 to rotate with the transmission shaft 407. When the end of the cam 408 away from the transmission shaft 407 rotates downward, it drives the lifting frame 403 to move downward. The frame 403 drives the lifting column 402 to rotate, and the lifting column 402 drives the screen frame 405 to rotate. When the end of the cam 408 away from the drive shaft 407 rotates upward, the lifting frame 403 rises under the elastic force of the spring 404, and the lifting column 402 drives the screen frame 405 to rise, thereby causing the screen frame 405 to vibrate up and down, so that the soil on the screen frame 405 is screened and shaken into the mixing box 2, so that large particles of stones in the soil on the screen frame 405 are blocked and prevented from entering the mixing box 2 and clogging the discharge. When the mixing shaft 502 rotates, it drives the mixing blade 503 to rotate. The rotating mixing blade 503 stirs the soil material in the mixing box 2. Then the high pressure pump 601 is started, and the soil is sucked out through the feed pipe 602 and then sprayed out through the nozzle 604 after being transferred through the discharge pipe 603.

[0064] This invention incorporates a feeding mechanism and a screening mechanism. By loading the topsoil into the hopper, it avoids spillage of topsoil into other areas of the spraying device when it is directly poured into the mixing box by a bulldozer, thus maintaining the cleanliness of the device during use and saving cleaning time. The hopper guides the topsoil into the mixing box, preventing workers from standing at the mixing box inlet and improving device safety. The vibrating screen frame traps large stones, preventing them from entering the mixing box and causing spray blockage. This enhances the stability of the device during use and improves the efficiency of topsoil spraying.

[0065] Based on the same inventive concept, embodiments of the present invention provide another method for hydroseeding and planting grass on steep slopes, comprising the following steps:

[0066] S1. Clear away dangerous rocks and loose stones.

[0067] S2. Install the main anchor bolt. The main anchor bolt uses 18mm diameter threaded steel with an anchoring depth of 1.0m.

[0068] S3. Lay wire mesh and plant cells.

[0069] A galvanized iron wire mesh with a diameter of 2.1mm and a mesh size of 5cm*5cm is anchored on the rock slope to cover the entire broken surface, thus stabilizing the base layer. For slopes with a gradient greater than 60°, a 250*250*100mm high-strength honeycomb vegetation grid is laid, which is fixed around the perimeter with 14mm diameter threaded steel bars and in the middle with 14mm diameter "F" shaped steel bars. The slope anchors are fixed in a triangular pattern with a spacing of no more than 1.2m and an anchoring depth of 1.0m.

[0070] The technical parameters of the high-strength honeycomb vegetated cell are as follows:

[0071]

[0072] S4. Install secondary anchor bolts; the secondary anchor bolts are made of 14mm diameter threaded steel, with an anchoring depth of 0.5m, and the anchor bolt spacing is no more than 1.5m, fixed in a triangular shape.

[0073] S5. Spraying and filling the base layer of topsoil, i.e., spraying moist planting soil; the thickness of the moist planting soil should be 60mm, and the spraying pressure should be 0.4-0.6MPa. The base layer material of the planting soil is made by mixing mature soil, fertilizer, water-retaining agent, binder, plant fiber, acidity regulator and disinfectant in a certain proportion. The mixing ratio can be determined based on experience or test data.

[0074] S6. Spray shrub seed layer; when spraying the shrub seed layer, the spray thickness is 20mm and the spray pressure is 0.3-0.5MPa.

[0075] S7, Seed layer of spray grasses.

[0076] When spraying the seed layer of grasses, the spray thickness is 20 mm and the spray pressure is 0.3-0.5 MPa. The topsoil for the seed layer is mixed with grasses and woody plants such as Vitex negundo.

[0077] The seed mix ratio for hydroseeding is as follows:

[0078]

[0079] S8. Sprayed fiber protective layer; The sprayed fiber protective layer has a spray thickness of 10mm and a spray pressure of 0.3-0.5MPa.

[0080] S9. Post-construction maintenance.

[0081] After the topsoil is sprayed, a layer of non-woven fabric is added to prevent rainwater erosion, low temperature and dry climate. The fabric is removed 30-45 days later when the shrubs and grass seedlings reach a certain height. Since the shrub and grass species suitable for the local climate and soil conditions have been selected, no artificial maintenance is required after the lawn is established. If the weather is dry for a long period of time, watering and fertilization should be provided appropriately.

[0082] In steps S5, S6, S7 and S8, through comparison of experimental data, it was found that under similar conditions, the germination rate and survival rate of the sprayed plant seeds were improved to varying degrees after adopting this spraying method.

[0083] The data from the four experiments are as follows:

[0084] Serial Number Design germination rate Design survival rate Germination rate of experimental process Survival rate of experimental process 1 90％ 95％ 95％ 97％ 2 90％ 95％ 93％ 97％ 3 90％ 95％ 97％ 95％ 4 90％ 95％ 96％ 98％

[0085] Experimental data showed that the best quality of topsoil hydroseeding for grass planting was achieved using a four-stage spraying process.

[0086] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for hydroseeding and planting grass on steep slopes, characterized in that, include: Hydroseeding machine frame (1); A mixing box (2) is provided on the side wall of the spraying machine frame (1); The feeding mechanism (3) is located on the side wall of the mixing box (2); The screening mechanism (4) is located at the top of the mixing box (2) and is connected to the feeding mechanism (3); The drive mechanism (5) is connected to the screening mechanism (4); The spraying mechanism (6) is located inside and at the top of the spraying machine frame (1) and is connected to the mixing box (2); The feeding mechanism (3) includes a lifting frame (301), a first lifting groove (302), a second lifting groove (303), and a conveying hopper (304). The lifting frame (301) is fixedly installed on the side wall of the mixing box (2). The first lifting groove (302) is opened on the side of the lifting frame (301) close to the mixing box (2). The second lifting groove (303) is opened on the side of the lifting frame (301) away from the mixing box (2). The conveying hopper (304) is movably installed inside the lifting frame (301). The screening mechanism (4) includes a feeding hopper (401), lifting columns (402), a screening frame (405), and a cam (408). The feeding hopper (401) is fixedly installed at the top center of the mixing box (2). There are four lifting columns (402) which are movably installed at the top of the mixing box (2). The four lifting columns (402) are respectively located at the four corners of the feeding hopper (401). The screening frame (405) is movably installed inside the mixing box (2). The screening frame (405) is fixedly installed at the bottom of the four lifting columns (402). The cam (408) is movably installed on the side wall of the feeding hopper (401) and located above the lifting columns (402). The spraying mechanism (6) includes a high-pressure pump (601), a feed pipe (602), a discharge pipe (603), and a spray pipe (604). The high-pressure pump (601) is fixedly installed inside the bottom of the spraying machine frame (1). One end of the feed pipe (602) is fixedly installed inside the high-pressure pump (601) by insertion. The other end of the feed pipe (602) is fixedly installed at the bottom of the mixing box (2) by insertion. The bottom end of the discharge pipe (603) is fixedly installed inside the high-pressure pump (601) by insertion. The spray pipe (604) is movably connected to the top end of the discharge pipe (603). An explosion-proof component is provided on the discharge pipe (603); the explosion-proof component includes a cylindrical shell, one end of which is detachably and sealed to the discharge pipe (603), and the other end of which is provided with an exhaust port. The part of the discharge pipe (603) located inside the cylindrical shell is provided with a through hole connecting the discharge pipe (603) and the inside of the cylindrical shell. A pressure relief component is attached to the through hole. The pressure relief component can be damaged or fall off when the pressure difference on both sides is greater than the rated threshold, so that the through hole connects the discharge pipe (603) and the inside of the cylindrical shell. Inside the cylindrical shell, from the end connected to the discharge pipe (603) to the other end, a piston, a buffer bladder, a first partition, a non-Newtonian fluid partition, a second partition, and a pressure regulating bladder are slidably arranged in sequence. The non-Newtonian fluid partition contains a shear-hardened non-Newtonian fluid. The pressure regulating bladder is connected to the exhaust port, and a rubber plug is provided on the exhaust port.

2. The high and steep slope hydroseeding and grass planting device according to claim 1, characterized in that: The feeding mechanism (3) further includes a first lifting rod (305), a second lifting rod (306), a limiting groove (307), and a lifting plate (308). The first lifting rod (305) is movably installed on the top of the conveying hopper (304) near the mixing box (2) by insertion. The two ends of the first lifting rod (305) are movably installed in the first lifting groove (302) by insertion. The second lifting rod (306) is movably installed on the top of the conveying hopper (304) away from the mixing box (2) by insertion. The two ends of the second lifting rod (306) are movably installed in the second lifting groove (303) by insertion. The limiting groove (307) is fixedly installed in the middle of the outer wall of the lifting frame (301). The end of the lifting plate (308) near the mixing box (2) is movably installed in the limiting groove (307) by insertion.

3. The high and steep slope hydroseeding and grass planting device according to claim 2, characterized in that: The feeding mechanism (3) further includes a movable groove (309), a lifting block (310), a threaded rod (311), and a motor frame (312). The movable groove (309) is located at one end of the lifting plate (308) away from the mixing box (2). The end of the second lifting rod (306) located outside the side wall of the lifting frame (301) is movably installed in the movable groove (309) by insertion. The lifting block (310) is fixedly installed on the side wall of the lifting plate (308) located in the limiting groove (307). The two ends of the threaded rod (311) are movably installed in the middle of the top and bottom ends of the limiting groove (307) by insertion. The lifting block (310) is movably sleeved on the threaded rod (311) by thread. The motor frame (312) is fixedly installed in the middle of the top end of the lifting frame (301).

4. The high and steep slope hydroseeding and grass planting device according to claim 3, characterized in that: The feeding mechanism (3) also includes a feeding motor (313), a first transmission belt (314) and a pouring plate (315). The feeding motor (313) is fixedly installed at the top center of the motor frame (312). The two ends of the first transmission belt (314) are respectively movably sleeved on the top of the output shaft and the threaded rod (311) of the feeding motor (313) located in the motor frame (312). The pouring plate (315) is fixedly installed at the top of the feed hopper (401) and the top of the lifting frame (301) near the mixing box (2).

5. The high and steep slope hydroseeding and grass planting device according to claim 4, characterized in that: The screening mechanism (4) further includes a lifting frame (403), springs (404), support columns (406), a drive shaft (407), and a second drive belt (409). The lifting frame (403) is movably sleeved on the outside of the feed hopper (401). The lifting frame (403) is fixedly installed on the top of four lifting columns (402). There are four springs (404) in total, each movably sleeved on one of the four lifting columns (402), and located between the top of the mixing box (2) and the lifting frame (403). There are four support columns (406). The two drive shafts (407) are fixedly installed on the top of the mixing box (2) and located at the four corners of the feed hopper (401). The two drive shafts (407) are movably installed on the top of the two sets of support columns (406) located on the left and right sides respectively by insertion. The cams (408) are fixedly sleeved on both ends of the drive shafts (407) by bolts. The cams (408) are movably installed on the top of the lifting frame (403) by sliding. The two ends of the second drive belt (409) are movably sleeved on the two drive shafts (407) respectively.

6. The high and steep slope hydroseeding and grass planting device according to claim 5, characterized in that: The drive mechanism (5) includes an engine (501), a mixing shaft (502), a mixing blade (503), a third transmission belt (504), a fourth transmission belt (505), and a shaft bracket (506). The engine (501) is fixedly installed in the middle of the bottom of the spraying machine frame (1). The mixing shaft (502) is movably installed in the middle of the inside of the mixing box (2) by insertion. The mixing blade (503) is fixedly sleeved on the mixing shaft (502) by bolts. The bottom end of the third transmission belt (504) is movably sleeved on the output shaft of the engine (501). The top end of the third transmission belt (504) is movably sleeved on the end of the mixing shaft (502) located outside the mixing box (2). The bottom end of the fourth transmission belt (505) is movably sleeved on the end of the mixing shaft (502) located outside the mixing box (2). The shaft bracket (506) is fixedly installed in the middle of the right side of the top of the spraying machine frame (1).

7. The high and steep slope hydroseeding and grass planting device according to claim 6, characterized in that: The drive mechanism (5) includes a first gear shaft (507), a first bevel gear (508), a second gear shaft (509), a second bevel gear (510), a fifth transmission belt (511), and a protective box (512). The first gear shaft (507) is movably mounted on the top of the shaft bracket (506) by insertion. The first bevel gear (508) is bolted to one end of the first gear shaft (507) near the mixing box (2). The second gear shaft (509) is movably mounted on the top of the shaft bracket (506) by insertion. The second bevel gear (510) is fixedly installed on the second gear shaft (509) near the end of the first bevel gear (508). The top end of the fourth transmission belt (505) is movably sleeved on the end of the first gear shaft (507) away from the first bevel gear (508). The two ends of the fifth transmission belt (511) are respectively movably sleeved between the second gear shaft (509) and a transmission shaft (407) on the left side of the top of the mixing box (2). The protective box (512) is fixedly installed on the middle right side of the top of the spraying machine frame (1) and sleeved on the outside of the shaft frame (506).

8. The high and steep slope hydroseeding and grass planting device according to claim 1, characterized in that: The high and steep slope topsoil spraying and grass planting device also includes an outer frame and a vehicle body. The spraying frame (1), the mixing box (2), the feeding mechanism (3), the screening mechanism (4), the driving mechanism (5) and the spraying mechanism (6) are all located inside the outer frame, and the outer frame is located on the vehicle body.

9. A method for hydroseeding and planting grass on steep slopes, using the hydroseeding and planting device for steep slopes as described in any one of claims 1-8, characterized in that... Includes the following steps: S1. Clear away dangerous rocks and loose stones; S2, Install the main anchor bolt; S3. Lay wire mesh and planted grids; S4. Install secondary anchor bolts; S5, Spray-filled topsoil base course; S6, Spraying shrub seed layer; S7, Seed layer of sprayed grasses; S8, sprayed fiber protective layer; S9. Post-construction maintenance.

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