Lawn repairing integrated device and repairing method thereof

Abstract

The invention relates to the technical field of municipal lawns, in particular to a lawn repairing integrated device and a repairing method thereof.The lawn repairing integrated device comprises a repairing mechanism and a conveying mechanism, the repairing mechanism comprises a rotating pipe, soil loosening blades, a root cutting assembly and a transmission assembly, and the soil loosening blades and the root cutting assembly are arranged outside the rotating pipe; a plurality of groups of soil loosening blades and root cutting assemblies are arranged, and the fertilizer can enter the cavity in the rotating pipe and fall down from the leaking holes; the conveying mechanism is arranged on the upper portion of the interior of the repairing mechanism, a fertilizer conveying assembly is arranged in the conveying mechanism, and fertilizer discharged by the conveying mechanism can enter the interior of the rotating pipe; the transmission assembly comprises a transmission shaft, one end of the transmission shaft is connected with the fertilizer conveying assembly, the other end of the transmission shaft synchronously drives the rotating pipe to rotate, synchronization of three actions of fertilizer conveying, fertilizer spreading and soil loosening and root cutting is achieved, and it is ensured that the fertilizer discharging time is matched with the soil loosening and root cutting operation.

Description

Technical Field

[0001] This application relates to the field of municipal lawn technology, specifically to an integrated lawn restoration device and its restoration method. Background Technology

[0002] In municipal lawn maintenance, for areas with dead grass caused by trampling, disease, or wilting, grass thinning and root cutting machinery is used to remove dead grass and cut old roots. High-speed rotating blades or toothed assemblies are used to clean up dead grass and cut roots. At the same time, there are also specialized lawn loosening devices that use rotating loosening rods, shovels, and other components to loosen the soil. Some small loosening devices are suitable for working in scattered areas of municipal lawns. In addition, fertilization is often carried out in conjunction with lawn restoration. Fertilizer is usually applied to the restored area using separate fertilization equipment or by manual application to replenish soil nutrients and promote the growth of new grass.

[0003] However, the following technical challenges exist in actual operation: First, the loosening and root-cutting components of existing loosening equipment do not match well enough, and cannot immediately chop and turn the soil after root cutting to form a uniform loose soil layer, resulting in uneven loosening depth; Second, existing fertilization methods mostly involve applying fertilizer after turning the soil, which is not easy to be covered and buried by the soil in time, resulting in fertilizer scattering on the surface, being washed away by rainwater or pecked by birds, resulting in poor fertilizer-soil integration.

[0004] In view of the above, in order to overcome the above technical problems, the present invention designs an integrated lawn restoration device and its restoration method, which solves the above technical problems. Summary of the Invention

[0005] An integrated lawn restoration device and method thereof, comprising a restoration mechanism and a conveying mechanism, wherein:

[0006] The repair mechanism includes a rotating tube, soil loosening blades, root severing components, and a transmission component. The soil loosening blades and root severing components are arranged outside the rotating tube, and multiple sets of soil loosening blades and root severing components are provided. Fertilizer can enter the cavity inside the rotating tube and fall through the leakage hole.

[0007] The conveying mechanism is located above the inside of the repair mechanism. The inside of the conveying mechanism is equipped with a fertilizer conveying component, and the fertilizer discharged by the conveying mechanism can enter the inside of the rotating tube.

[0008] The transmission assembly includes a transmission shaft, one end of which is connected to the fertilizer conveying assembly, and the other end of the transmission shaft synchronously drives the rotating tube to rotate.

[0009] Preferably, the rotating tube includes a cavity, and a feed inlet communicating with the cavity is provided on one side of the rotating tube. Guide vanes are fixedly provided on the inner wall of the cavity, and the guide vanes have a spiral structure. The outer wall of the rotating tube is provided with multiple sets of annularly distributed leakage holes communicating with the cavity.

[0010] Preferably, a baffle is fixedly installed at the lower end of the inside of the repair mechanism, and the baffle covers the upper part of the rotating tube, the loosening blade and the root breaking component. Both ends of the rotating tube are connected to the baffle through bearings.

[0011] Preferably, the fertilizer conveying assembly includes a conveying cavity, the rotating shaft and multiple spiral conveying blades are all disposed inside the conveying cavity, both ends of the rotating shaft are connected to the conveying mechanism through bearing seats, and the rotating shaft near the inlet end of the conveying mechanism extends to the outside of the conveying mechanism, the multiple spiral conveying blades are fixed at equal intervals on the outer surface of the rotating shaft, and a fertilizer conveying pipe is provided between the outlet end of the conveying mechanism and the inlet end of the rotating pipe.

[0012] Preferably, the transmission assembly includes a drive motor fixed inside the repair mechanism, a drive gear mounted on the output shaft of the drive motor, a transmission shaft mounted on one end of the rotating shaft extending out of the conveying mechanism via a coupling, and a transmission gear meshing with the drive gear fixedly mounted on the outer surface of the transmission shaft.

[0013] Preferably, the transmission assembly further includes a driving synchronous pulley and a driven synchronous pulley. The driving synchronous pulley is fixedly disposed at the outer end of the transmission shaft, and the driven synchronous pulley is fixedly disposed at the end of the rotating tube near the transmission assembly. The driven synchronous pulley rotates synchronously with the driving synchronous pulley through a synchronous belt.

[0014] Preferably, each set of root-cutting components includes three circularly distributed, arc-shaped rotating arms. One end of each rotating arm is fixedly or detachably connected to a rotating tube. At least one of the rotating arms has an outwardly curved first cutter at the end away from the rotating tube, and the other rotating arms have an inwardly curved second cutter at the end away from the rotating tube. The ends of the second cutters on adjacent root-cutting components are in contact with each other.

[0015] Preferably, a base is fixedly installed at the rear end of the repair mechanism, a power supply component is installed at the upper end of the base, casters are installed on both sides of the rear end of the base, an operating handle is provided at the rear end of the base, and a retaining plate is fixedly connected to the bottom surface of the base near the repair mechanism.

[0016] Preferably, a fixing cover for enclosing the power supply assembly is fixedly installed on the top of the base, a fertilizer storage mechanism is provided at the top of the fixing cover, a discharge pipe is installed at the outlet end of the fertilizer storage mechanism and the discharge pipe is connected to the inlet end of the conveying mechanism, a valve is installed at the position of the discharge pipe near the conveying mechanism, and a top cover is installed at the top of the fertilizer storage mechanism.

[0017] The restoration method of the integrated lawn restoration device includes the following steps:

[0018] Step 1: Based on the soil compaction and root depth of the dead grass area in the municipal lawn, adjust the operating parameters of the device, open the valve at the discharge pipe, preset the fertilizer discharge flow rate, and simultaneously power the drive motor through the power supply component. Using the operating handle and the moving wheels, push the device to the dead grass area to be repaired, so that the root breaking component and soil loosening blade at the bottom of the repair mechanism are aligned with the point to be repaired.

[0019] Step 2: Start the drive motor and use the operating handle to command the repair mechanism to press down onto the turf surface. The drive motor drives the drive shaft to rotate through the meshing of the drive gear and the transmission gear. The drive shaft rotates in conjunction with the rotating tube through the synchronizing component. When the rotating tube drives the external multiple sets of root-cutting components and soil-loosening blades to rotate, the root-cutting components cut into the soil to cut the roots. The synchronously rotating soil-loosening blades chop and turn the soil after the roots are cut, forming a uniform and loose working soil layer.

[0020] Step 3: As the drive shaft rotates, the linkage rotating shaft rotates, causing the spiral conveyor blades to operate within the conveying chamber. The fertilizer in the fertilizer storage mechanism flows into the conveying chamber by gravity through the discharge pipe. After being quantitatively pushed by the spiral conveyor blades, it is introduced into the cavity of the rotating tube through the fertilizer conveying pipe. The spiral guide blades on the inner wall of the rotating tube rotate with the shaft to guide and push the fertilizer. Combined with the centrifugal force generated by the rotation of the rotating tube, the fertilizer is evenly thrown out from the annularly distributed holes into the loose soil layer. The synchronously operating loosening blades immediately turn over and bury the thrown fertilizer into the soil, allowing the fertilizer to instantly integrate with the soil.

[0021] The beneficial effects of this invention are as follows:

[0022] 1. This invention enables integrated operation of multiple stages, including root pruning, soil loosening, material feeding, and fertilization. Power is distributed through a single drive shaft, simultaneously driving fertilizer delivery, rotating the rotary tube, and root pruning / soil loosening. The timing of each stage is perfectly synchronized, breaking the limitations of traditional separate processes and step-by-step operations in lawn restoration equipment. It eliminates the need for redundant components such as separate motors and spreaders for the fertilization and material feeding stages, simplifying the device structure and eliminating the cumbersome manual step-by-step operation process, thus shortening lawn restoration operation time. It enables flexible and efficient operation in scattered, fragmented dead grass restoration areas of municipal lawns.

[0023] 2. The root-cutting components arranged in a ring array work in sync with the soil-loosening blades. The root-cutting components use inner and outer double cutters to cut the soil. The ends of adjacent cutters fit together to form a seamless working surface, which can cut into the soil and cut off the outer roots of dead grass and the internal residual roots without dead angles, so as to avoid the residual roots affecting the rooting and growth of new grass. The soil-loosening blades follow the movement of the cutters, evenly chopping and fully turning over the soil after the roots are cut, breaking up the soil compaction, ensuring that the soil loosening depth is uniform and consistent, and forming a loose and breathable working soil layer.

[0024] 3. The fertilizer is delivered quantitatively and uniformly to the rotating tube cavity by the feeding component. Under the pushing of the spiral guide blades and the action of centrifugal force, it is evenly and dispersed through the annular holes to the soil loosening operation area, without concentrated accumulation or fertilization blind spots. After being thrown out, the fertilizer is immediately turned over and buried into the middle layer of the soil by the synchronously operating soil loosening blades, realizing the immediate and full integration of fertilizer with loose soil. This effectively avoids the fertilizer being washed away by rainwater or eaten by birds when exposed on the soil surface. Attached Figure Description

[0025] Figure 1 This is an overall perspective view of the present invention;

[0026] Figure 2 This is a three-dimensional view of the whole from another perspective;

[0027] Figure 3 This is a three-dimensional cross-sectional view;

[0028] Figure 4 This is a three-dimensional cross-sectional view of the repair mechanism;

[0029] Figure 5 for Figure 4 Enlarged view of a portion of region A in the middle;

[0030] Figure 6 For repairing the internal structure diagram of the mechanism;

[0031] Figure 7 A three-dimensional view of the rotating tube, loosening blades, and root-cutting assembly;

[0032] Figure 8 This is a diagram of the internal structure of the rotating tube;

[0033] Figure 9 This is a structural diagram of the root break component.

[0034] In the picture:

[0035] 1. Repair mechanism; 11. Baffle; 12. Rotating tube; 121. Cavity; 122. Guide vane; 123. Leakage hole; 124. Feed inlet; 13. Loosening blade; 14. Root cutting assembly; 141. Rotating arm; 142. First cutter; 143. Second cutter; 15. Transmission assembly; 151. Drive motor; 152. Drive gear; 153. Transmission shaft; 154. Transmission gear; 155. Driving synchronous pulley; 156. Driven synchronous pulley; 157. Synchronous belt; 16. Fertilizer conveying pipe; 2. Fertilizer storage mechanism; 21. Top cover; 22. Discharge pipe; 23. Valve; 3. Fixing cover; 4. Base; 41. Retaining plate; 5. Power supply assembly; 6. Moving wheel; 7. Operating handle; 8. Conveying mechanism; 81. Conveying chamber; 82. Rotating shaft; 83. Spiral conveying blade. Detailed Implementation

[0036] The application principle of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0037] Example 1:

[0038] like Figure 1-9 As shown, an integrated lawn restoration device includes a restoration mechanism 1 and a conveying mechanism 8. The restoration mechanism 1 is responsible for completing the integrated operation of lawn root pruning, soil loosening and fertilization, while the conveying mechanism 8 is responsible for the directional delivery of fertilizer.

[0039] The repair mechanism 1 includes a rotating tube 12, loosening blades 13, root-cutting components 14, and a transmission component 15. The loosening blades 13 and root-cutting components 14 are arranged on the outside of the rotating tube 12, and multiple sets of loosening blades 13 and root-cutting components 14 are arranged alternately in a ring on the outer wall of the rotating tube 12 to ensure that the loosening and root-cutting actions within the working range are evenly covered without any dead corners. Fertilizer can enter the cavity 121 inside the rotating tube 12 and fall through the hole 123 to achieve synchronous fertilization with the rotation of the rotating tube, without the need for additional fertilization power components. The rotating tube 12 includes a cavity 121. One side of the rotating tube 12 is provided with a feed inlet 124 that communicates with the cavity 121, which is used to receive fertilizer conveyed by the conveying mechanism 8 to ensure closed-loop fertilizer conveying. A guide vane 122 is fixedly installed on the inner wall of the cavity 121. The guide vane 122 has a spiral structure. When the rotating tube 12 rotates, the spiral guide vane 122 can continuously push fertilizer to avoid fertilizer accumulation, clumping and blockage in the cavity. The outer wall of the rotating tube 12 is provided with multiple sets of annularly distributed leakage holes 123 that communicate with the cavity 121, which facilitates the fertilizer to be evenly thrown out to the working soil layer under the action of centrifugal force, ensuring the uniformity of fertilization.

[0040] The lower end of the repair mechanism 1 is fixedly equipped with a baffle 11, which covers the upper part of the rotating tube 12, the loosening blade 13 and the root cutting component 14. Both ends of the rotating tube 12 are connected to the baffle 11 through bearings. The baffle 11 can effectively prevent soil, grass clippings and dead grass roots from splashing upwards during operation, thus protecting the internal components of the device from debris and preventing pollution of the surrounding healthy lawn.

[0041] The conveying mechanism 8 is located above the inside of the repair mechanism 1. The conveying mechanism 8 has a fertilizer conveying assembly inside, and the fertilizer discharged from the conveying mechanism 8 can enter the inside of the rotating tube 12. The fertilizer conveying assembly includes a conveying chamber 81, a rotating shaft 82 and multiple spiral conveying blades 83, all of which are located inside the conveying chamber 81. Both ends of the rotating shaft 82 are connected to the conveying mechanism 8 through bearing seats, and the rotating shaft 82 near the inlet end of the conveying mechanism 8 extends to the outside of the conveying mechanism 8. Multiple spiral conveying blades 83 are fixed at equal intervals on the outer surface of the rotating shaft 82. The spiral conveying blades 83 rotate with the rotating shaft to form a continuous spiral pushing channel, realizing quantitative and uniform conveying of fertilizer and avoiding material overflow and interruption. A fertilizer conveying pipe 16 is provided between the outlet end of the conveying mechanism 8 and the inlet end of the rotating tube 12 to realize directional flow of fertilizer and avoid leakage and spillage during fertilizer conveying.

[0042] The transmission assembly 15 includes a drive shaft 153, one end of which is connected to the fertilizer conveying assembly, and the other end of which synchronously drives the rotating tube 12 to rotate, realizing a single power source split transmission and ensuring synchronous fertilizer conveying, root pruning, and soil loosening actions. The transmission assembly 15 includes a drive motor 151 fixed inside the repair mechanism 1, with a drive gear 152 mounted on the output shaft of the drive motor 151. One end of the rotating shaft 82 extending out of the conveying mechanism 8 is connected to the drive shaft 153 via a coupling. A transmission gear 154, meshing with the drive gear 152, is fixedly mounted on the outer surface of the drive shaft 153. The transmission assembly 15 also includes a driving synchronous pulley 155 and a driven synchronous pulley 156. The driving synchronous pulley 155 is fixedly disposed at the outer end of the drive shaft 153, and the driven synchronous pulley 156 is fixedly disposed at the end of the rotating tube 12 near the transmission assembly 15. The driven synchronous pulley 156 rotates synchronously with the driving synchronous pulley 155 via a synchronous belt 157.

[0043] The rear end of the repair mechanism 1 is fixedly equipped with a base 4, and the upper end of the base 4 is equipped with a power supply component 5 to provide power to the drive motor 151, which is suitable for outdoor operation without external power supply. The two sides of the rear end of the base 4 are equipped with moving wheels 6, which are made of flexible lawn-specific wheels, with uniform pressure, and will not crush or damage the lawn, ensuring the ease of movement of the device. The rear end of the base 4 is equipped with an operating handle 7, which is convenient for manual hand control of the device's direction of travel and operating speed. The bottom surface of the base 4 is fixedly connected to a soil retaining plate 41 on the side close to the repair mechanism 1, which, together with the cover 11, forms a double anti-splash structure to prevent mud and debris from splashing. A fixed cover 3 is fixedly installed on the top of the base 4 to cover the power supply component 5, which isolates it from soil and fertilizer erosion and protects the power supply component 5 for safe operation. A fertilizer storage mechanism 2 is set at the top of the fixed cover 3 for bulk storage of special granular fertilizer for lawn restoration, reducing the frequency of adding fertilizer during operation. A discharge pipe 22 is installed at the outlet end of the fertilizer storage mechanism 2, and the discharge pipe 22 is connected to the inlet end of the conveying mechanism 8. A valve 23 is installed near the conveying mechanism 8 on the discharge pipe 22, which can flexibly adjust the discharge on / off and the discharge flow rate to adapt to the fertilizer application needs of different restoration areas. A top cover 21 is installed at the top of the fertilizer storage mechanism 2 for easy opening and adding of fertilizer, and can prevent fertilizer from getting damp or spilling when closed.

[0044] Example 2:

[0045] This embodiment refines the root-cutting component 14 to solve the technical problems of incomplete root cutting and dead zones in the prior art. Each root-cutting component 14 includes three circularly distributed, arc-shaped rotating arms 141. One end of the rotating arm 141 is fixedly connected to or detachably connected to the rotating tube 12. The detachable connection can be achieved by conventional fastening methods such as bolt fastening or snap-fit ​​connection, which facilitates individual replacement after the cutter wears or becomes dull, without the need to replace the entire rotating arm or rotating tube, reducing the device's operation and maintenance costs and improving component reusability. At least one rotating arm 141 has an outwardly bent first cutter 142 at the end away from the rotating tube 12, and the other rotating arms 141 have an inwardly bent second cutter 143 at the end away from the rotating tube 12. The ends of the second cutters 143 on adjacent root-cutting components 14 are abutted together.

[0046] When the root-cutting component 14 is in operation, the high-speed rotation of the rotating tube 12 drives the arc-shaped rotating arm 141 to operate synchronously. The inner and outer double cutters form a synergistic cutting effect. The outward-curving first cutter 142 is responsible for cutting the root system around the dead grass area, while the inward-curving second cutter 143 is responsible for cutting the dense residual roots in the dead grass area. It specifically removes stubborn residual roots that affect the rooting and growth of new grass. The ends of the second cutter 143 on adjacent root-cutting components 14 are attached to form a continuous and gapless root-cutting working surface, avoiding the problems of missed cuts and dead corners, clearing obstacles for the subsequent growth of new grass. It only operates on the dead grass area and will not scratch or damage the surrounding healthy lawn root system, avoiding secondary damage to the lawn.

[0047] Example 3:

[0048] Based on the integrated lawn restoration device of Embodiments 1 and 2, this device enables simultaneous integrated operation of three processes: root pruning, soil loosening, and fertilization, targeting areas of municipal lawns damaged by trampling and disease. The process includes the following steps:

[0049] Step 1: Preparation before operation. Open the top cover 21 of the fertilizer storage mechanism 2, fill the fertilizer storage mechanism 2 with sufficient lawn repair granular fertilizer, and close the top cover 21 to complete the seal. According to the soil compaction and root depth of the dead grass area of ​​the municipal lawn, adjust the speed of the drive motor 151, open the valve 23 at the discharge pipe 22, preset the appropriate fertilizer discharge flow rate, and at the same time, supply power to the drive motor 151 through the power component 5. Using the operating handle 7 and the moving wheels 6, push the device to the dead grass area to be repaired, so that the root breaking component 14 and the soil loosening blade 13 at the bottom of the repair mechanism 1 are aligned with the point to be repaired.

[0050] Step Two: Synchronous root pruning and soil loosening operation. Start the drive motor 151. The output shaft of the drive motor 151 drives the drive gear 152 to rotate at high speed. Through gear meshing, the drive shaft 153 rotates synchronously. The drive shaft 153 then drives the rotating tube 12 to rotate at high speed through the active synchronous pulley 155, the synchronous belt 157, and the driven synchronous pulley 156. The rotating tube 12 drives multiple sets of external root pruning components 14 and soil loosening blades 13 to rotate synchronously. The arc-shaped rotating arm 141 of the root pruning component 14 drives the first cutter 142 and the second cutter 143 to smoothly cut into the soil to a depth of 5-8cm. The inner and outer double cutters work together to cut off the long roots on the outer periphery of the dead grass and the dense residual roots inside. The adjacent cutters fit together to form a gapless working surface. The synchronously rotating soil loosening blades 13 follow the movement of the cutters, quickly chopping and evenly turning the soil after root pruning, breaking up soil compaction, and forming a loose and breathable working soil layer.

[0051] Step 3: Synchronous fertilization and burying operation. While the drive shaft 153 rotates, the rotating shaft 82 rotates synchronously via the coupling, driving the spiral conveyor blades 83 to rotate at a uniform speed within the conveying chamber 81. Under gravity, the fertilizer in the fertilizer storage mechanism 2 flows by gravity through the discharge pipe 22 into the conveying chamber 81. After being quantitatively pushed by the spiral conveyor blades 83, it is smoothly introduced into the cavity 121 of the rotating tube 12 through the fertilizer conveying pipe 16. The spiral guide blades 122 on the inner wall of the rotating tube 12 rotate synchronously with the shaft, guiding the fertilizer into the cavity 121 of the rotating tube 12. The fertilizer in cavity 121 is spirally guided and pushed to prevent it from accumulating, clumping and blocking the cavity. At the same time, the centrifugal force generated by the rotation of the rotating tube 12 evenly throws the fertilizer out from multiple sets of annular holes 123 into the loose soil layer below. At this time, the soil loosening blades 13 continue to turn the soil, immediately turning the thrown fertilizer into the middle layer of the soil, realizing the immediate and full integration of fertilizer and loose soil, preventing the fertilizer from being exposed on the soil surface and washed away by rainwater or eaten by birds, and helping the soil to quickly absorb nutrients.

[0052] Step 4: Continuous repair and finishing. Holding the operating handle 7, push the device at a constant speed along the preset route, and gradually advance the work along the dead grass area, so that the three processes of root cutting, loosening soil and fertilizing are carried out simultaneously and continuously until the repair work of the entire dead grass area is completed.

Claims

1. An integrated lawn restoration device, characterized in that: It includes a repair mechanism (1) and a conveying mechanism (8), wherein: The repair mechanism (1) includes a rotating tube (12), a soil loosening blade (13), a root severing component (14), and a transmission component (15). The soil loosening blade (13) and the root severing component (14) are arranged outside the rotating tube (12), and there are multiple sets of soil loosening blade (13) and root severing component (14). Fertilizer can enter the cavity (121) inside the rotating tube (12) and fall through the hole (123). The conveying mechanism (8) is located above the inside of the repair mechanism (1). The inside of the conveying mechanism (8) is equipped with a fertilizer conveying assembly. The fertilizer discharged by the conveying mechanism (8) can enter the inside of the rotating tube (12). The transmission assembly (15) includes a transmission shaft (153), one end of which is connected to the fertilizer conveying assembly, and the other end of the transmission shaft (153) synchronously drives the rotating tube (12) to rotate.

2. The integrated lawn restoration device according to claim 1, characterized in that: The rotating tube (12) includes a cavity (121). One side of the rotating tube (12) is provided with a feed port (124) that communicates with the cavity (121). A guide vane (122) is fixedly provided on the inner wall of the cavity (121), and the guide vane (122) has a spiral structure. The outer wall of the rotating tube (12) is provided with multiple sets of annularly distributed leakage holes (123) that communicate with the cavity (121).

3. The integrated lawn restoration device according to claim 1, characterized in that: The lower end of the repair mechanism (1) is fixedly provided with a baffle (11), and the baffle (11) covers the upper part of the rotating tube (12), the loosening blade (13) and the root breaking component (14). Both ends of the rotating tube (12) are connected to the baffle (11) through bearings.

4. The integrated lawn restoration device according to claim 3, characterized in that: The fertilizer conveying assembly includes a conveying chamber (81), a rotating shaft (82) and multiple spiral conveying blades (83) are disposed inside the conveying chamber (81), both ends of the rotating shaft (82) are connected to the conveying mechanism (8) through bearing seats, and the rotating shaft (82) near the inlet end of the conveying mechanism (8) extends to the outside of the conveying mechanism (8), and multiple spiral conveying blades (83) are fixed at equal intervals on the outer surface of the rotating shaft (82), and a fertilizer conveying pipe (16) is provided between the outlet end of the conveying mechanism (8) and the inlet end of the rotating pipe (12).

5. The integrated lawn restoration device according to claim 4, characterized in that: The transmission assembly (15) includes a drive motor (151) fixed inside the repair mechanism (1), a drive gear (152) is mounted on the output shaft of the drive motor (151), and a transmission shaft (153) is mounted on one end of the rotating shaft (82) through a coupling. A transmission gear (154) that meshes with the drive gear (152) is fixedly mounted on the outer surface of the transmission shaft (153).

6. The integrated lawn restoration device according to claim 5, characterized in that: The transmission assembly (15) further includes a driving synchronous pulley (155) and a driven synchronous pulley (156). The driving synchronous pulley (155) is fixedly disposed at the outer end of the transmission shaft (153), and the driven synchronous pulley (156) is fixedly disposed at one end of the rotating tube (12) near the transmission assembly (15). The driven synchronous pulley (156) rotates synchronously with the driving synchronous pulley (155) through a synchronous belt (157).

7. The integrated lawn restoration device according to claim 1, characterized in that: Each set of root-cutting components (14) includes three circularly distributed, arc-shaped rotating arms (141). One end of each rotating arm (141) is fixedly or detachably connected to a rotating tube (12). At least one of the rotating arms (141) has an outwardly curved first cutter (142) at the end away from the rotating tube (12), and the other rotating arms (141) have an inwardly curved second cutter (143) at the end away from the rotating tube (12). The ends of the second cutters (143) on adjacent root-cutting components (14) are in contact with each other.

8. The integrated lawn restoration device according to claim 1, characterized in that: The repair mechanism (1) has a base (4) fixedly installed at its rear end. A power supply assembly (5) is installed at the upper end of the base (4). Moving wheels (6) are installed on both sides of the rear end of the base (4). An operating handle (7) is provided at the rear end of the base (4). A retaining plate (41) is fixedly connected to the bottom surface of the base (4) on the side close to the repair mechanism (1).

9. The integrated lawn restoration device according to claim 8, characterized in that: A fixed cover (3) is fixedly installed above the base (4) to enclose the power supply assembly (5). A fertilizer storage mechanism (2) is provided at the top of the fixed cover (3). A discharge pipe (22) is installed at the outlet end of the fertilizer storage mechanism (2), and the discharge pipe (22) is connected to the inlet end of the conveying mechanism (8). A valve (23) is installed near the conveying mechanism (8) on the discharge pipe (22). A top cover (21) is installed at the top of the fertilizer storage mechanism (2).

10. A method for repairing lawns using the integrated lawn repair device according to any one of claims 1-9, characterized in that: Includes the following steps: Step 1: Based on the soil compaction and root depth of the dead grass area of ​​the municipal lawn, adjust the operating parameters of the device, open the valve (23) at the discharge pipe (22), preset the fertilizer discharge flow rate, and at the same time, power the drive motor (151) through the power supply component (5). Using the operating handle (7) and the moving wheel (6), push the device to the dead grass area to be repaired, so that the root breaking component (14) and the soil loosening blade (13) at the bottom of the repair mechanism (1) are aligned with the point to be repaired. Step 2: Start the drive motor (151) and press the repair mechanism (1) down onto the turf surface by operating the handle (7). The drive motor (151) drives the drive shaft (153) to rotate through the meshing of the drive gear (152) and the transmission gear (154). The drive shaft (153) rotates through the synchronous component and the rotating tube (12). When the rotating tube (12) drives the external multiple sets of root-cutting components (14) and soil-loosening blades (13) to rotate, the root-cutting components (14) cut into the soil to cut the roots. The synchronously operating soil-loosening blades (13) chop and turn the soil after the roots are cut, forming a uniform and loose working soil layer. Step 3: As the drive shaft (153) rotates, the rotating shaft (82) rotates in conjunction with it, causing the spiral conveying blades (83) to operate in the conveying chamber (81). The fertilizer in the fertilizer storage mechanism (2) flows into the conveying chamber (81) by gravity through the discharge pipe (22). After being quantitatively pushed by the spiral conveying blades (83), it is introduced into the cavity (121) of the rotating tube (12) through the fertilizer conveying pipe (16). The spiral guide blades (122) on the inner wall of the rotating tube (12) rotate with the shaft to guide and push the fertilizer. With the centrifugal force generated by the rotation of the rotating tube (12), the fertilizer is evenly thrown out from the annularly distributed holes (123) into the loose soil layer. The soil loosening blades (13) that operate synchronously immediately turn the thrown-out fertilizer into the soil, so that the fertilizer and soil are instantly integrated.

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