A lawn rolling device

Abstract

This utility model relates to a lawn rolling device, comprising a mounting plate serving as a supporting base. From front to back, the mounting plate is sequentially equipped with a drive unit, a direction control unit, and a self-correcting rolling tail plate. A rolling cylinder is rotatably mounted below the self-correcting rolling tail plate. A pair of drive wheels driven by the drive unit are located at the bottom of the mounting plate. A steering wheel is mounted on the mounting plate, and the steering wheel is linked to the direction control unit, which controls the drive wheels. The self-correcting rolling tail plate is hinged to the rear of the mounting plate, allowing the self-correcting rolling tail plate to rotate horizontally relative to the mounting plate around the hinge point. A self-correcting mechanism is provided between the self-correcting rolling tail plate and the mounting plate. The self-correcting mechanism includes a guide plate fixedly mounted on the mounting plate and an arc-shaped guide shaft fixedly mounted on the self-correcting rolling tail plate. The arc-shaped guide shaft passes through the guide plate, and an elastic reset component is provided on the arc-shaped guide shaft. The elastic reset component cooperates with the arc-shaped guide shaft to stabilize the movement trajectory of the rolling cylinder.

Description

Technical Field

[0001] This utility model relates to the field of lawn rolling, and in particular to a lawn rolling device. Background Technology

[0002] Lawn rolling, operated by rollers, produces beneficial effects on lawns in various situations: after sowing, it levels the turf bed, improves seed-soil contact, and enhances germination uniformity; after laying, it promotes close contact between grass roots and soil, facilitating water absorption and establishment; moderate rolling promotes tillering and runner elongation, inhibits vertical growth, and makes the lawn denser and smoother; rolling before turf removal results in a lawn of uniform thickness, reducing weight and saving transportation costs. Furthermore, rolling can refine the ground, improve the landscape, increase the hardness and flatness of sports fields, effectively improve uneven soil surfaces caused by freezing or small animal activity, and create patterns through rolling in different directions, enhancing the practical value and aesthetic appeal of the lawn.

[0003] However, existing technologies have proposed a lawn compactor for reducing the burden of manual rolling, such as Chinese Patent Application No. CN202310653804.0, which proposes a lawn compactor for laying lawns, including: a power trolley, a harrow, and a watering system; wherein, the driving wheels of the power trolley are compaction wheels; the harrow is set at the bottom of the power trolley frame and connected to the power trolley; it can be controlled by the power trolley's control system to switch between working and folding states; the watering system is set on the power trolley and can work synchronously with the harrow, replacing manual tillage, shortening lawn laying time, solving the problems of water for dust control during tillage and water for maintenance during lawn laying, and reducing labor usage; the weight of the vehicle can be adjusted at any time according to the type of lawn and soil texture to achieve better compaction results.

[0004] Existing technologies similar to the aforementioned patent have the following problems: When the lawn roller is traveling in a straight line, the rear roller can maintain a stable trajectory. However, when turning, the roller is subjected to lateral forces, such as the lateral traction force generated by the steering of the drive wheels and the ground friction force, which can easily cause lateral deviation. This leads to uneven rolling and tearing of the lawn surface during turning.

[0005] Therefore, there is an urgent need for a lawn rolling device that can solve the above problems. Utility Model Content

[0006] To address the issues of track deviation and lawn damage caused by lateral forces on the tail roller of existing rolling equipment during turning, this invention proposes a lawn rolling device to improve the efficiency of turf rolling. The technical solution is as follows.

[0007] A lawn rolling device includes a mounting plate as a supporting base, and a drive device, a direction control device, and a self-correcting rolling tail plate are sequentially mounted on the mounting plate from front to back; a rolling cylinder is rotatably mounted below the self-correcting rolling tail plate.

[0008] The mounting plate has a pair of drive wheels driven by a drive device at its bottom. A steering wheel is mounted on the mounting plate. The steering wheel is linked with a steering control device, which controls the drive wheels.

[0009] The self-correcting rolling tail plate is hinged to the tail of the mounting plate, allowing the self-correcting rolling tail plate to rotate horizontally relative to the mounting plate around the hinge point; a self-correcting mechanism is provided between the self-correcting rolling tail plate and the mounting plate.

[0010] The self-correcting mechanism includes a guide plate fixedly mounted on the mounting plate and an arc-shaped guide shaft fixedly mounted on the self-correcting rolling tail plate. The arc-shaped guide shaft passes through the guide plate and is provided with an elastic reset component. The elastic reset component cooperates with the arc-shaped guide shaft to keep the rolling cylinder on a stable movement trajectory.

[0011] Furthermore, the arc-shaped profile of the arc-shaped guide shaft protrudes horizontally away from the mounting plate.

[0012] Furthermore, the arc-shaped guide shaft is fixed to the self-correcting rolling tail plate by mounting ears on both sides, and the guide plate is provided with guide holes, through which the arc-shaped guide shaft moves.

[0013] Furthermore, the rotation trajectory of the self-correcting rolling tail plate is centered at the hinge point, and the arc-shaped profile of the arc-shaped guide shaft is concentric with the rotation trajectory of the self-correcting rolling tail plate.

[0014] Furthermore, the elastic reset component is a pair of springs sleeved on the arc-shaped guide shaft. The arc-shaped guide shaft passes through the guide plate and is divided into two sections. The pair of springs are respectively set on the arc-shaped guide shafts on both sides of the guide plate, and one end of the spring is fixedly connected to the side of the mounting ear facing the guide plate, and the other end is fixedly connected to the guide plate.

[0015] Furthermore, the self-correcting rolling tail plate is disposed on the lower side of the tail of the mounting plate, and several rollers are movably embedded on the self-correcting rolling tail plate to reduce the friction between the self-correcting rolling tail plate and the mounting plate.

[0016] Furthermore, the roller is rotatably mounted on the extension plates extending downward on both sides of the self-correcting roller tail plate at the center of its two sides. The axis of the roller is parallel to the mounting plate, and the axis of the roller is perpendicular to the length direction of the mounting plate when the lawn rolling device moves in a straight line.

[0017] Furthermore, the mounting plate has two recessed sides in the middle, and a seat is provided on the non-recessed part. Anti-slip ridges are provided on the recess.

[0018] The beneficial effects of this utility model are as follows: This utility model, by setting a self-correcting rolling tail plate hinged to the rear of the mounting plate and configuring a self-correcting mechanism between the two, aims to solve the problem of trajectory deviation of the tail rolling cylinder due to lateral force during the turning of the rolling equipment and the resulting lawn damage. This mechanism utilizes the cooperation of an arc-shaped guide shaft and an elastic reset component to allow the tail plate to rotate horizontally around the hinge point during turning to adapt to lateral force, while simultaneously generating a torque to return the tail plate to the center position, thereby causing the rolling cylinder to maintain or restore the expected travel trajectory during and after turning. This design reduces the resistance of the tail to the front wheel steering operation during turning, making steering wheel control smoother, and reduces friction by setting rollers between the tail plate and the mounting plate. Its effect is to improve the straightness and consistency of the rolling path, reduce uneven lawn indentations or damage caused by trajectory deviation, and simultaneously improve steering maneuverability and overall work efficiency. Attached Figure Description

[0019] Appendix Figure 1 This is a top view of the present invention;

[0020] Appendix Figure 2 This is a side view of the present invention;

[0021] Appendix Figure 3 This is an axial cross-sectional view of the rolling cylinder of this utility model;

[0022] Appendix Figure 4 This is a schematic diagram of the roller arrangement of this utility model.

[0023] In the above attached figures:

[0024] Mounting plate 1, drive wheel 2, recess 3, anti-slip texture 4, seat 5, steering wheel 6, hinge 7, self-correcting rolling tail plate 8, extension plate 9, roller 10, rolling cylinder 11, guide plate 12, guide hole 13, arc-shaped guide shaft 14, mounting ear 15, spring 16. Detailed Implementation

[0025] The present invention will be further described below with reference to the embodiments and accompanying drawings:

[0026] like Figure 1 , 2 As shown, a lawn rolling device includes a mounting plate 1 as a supporting base. The mounting plate 1 is equipped with a drive device, a direction control device, and a self-correcting rolling tail plate 8 from front to back. A rolling cylinder 11 is rotatably installed below the self-correcting rolling tail plate 8.

[0027] like Figure 1 ,2 As shown, a pair of drive wheels 2 driven by a drive device are provided at the bottom of the mounting plate 1, and a steering wheel 6 is provided on the mounting plate 1. The steering wheel 6 is linked with a steering control device, and the steering control device controls the drive wheels 2.

[0028] like Figure 1 , 2 As shown, the self-correcting rolling tail plate 8 is hinged to the tail of the mounting plate 1, allowing the self-correcting rolling tail plate 8 to rotate horizontally relative to the mounting plate 1 around the hinge point 7; a self-correcting mechanism is provided between the self-correcting rolling tail plate 8 and the mounting plate 1; the hinge design allows the self-correcting rolling tail plate 8 to rotate horizontally when turning or encountering obstacles, avoiding stress concentration or damage caused by rigid connection.

[0029] like Figure 1 , 2 As shown, the self-correcting mechanism includes a guide plate 12 fixedly mounted on the mounting plate 1 and an arc-shaped guide shaft 14 fixedly mounted on the self-correcting rolling tail plate 8. The arc-shaped guide shaft 14 passes through the guide plate 12 and is provided with an elastic reset component. The elastic reset component cooperates with the arc-shaped guide shaft 14 to keep the rolling cylinder 11 on a stable movement trajectory.

[0030] like Figure 1 , 2 As shown, the self-correcting mechanism provides an automatic reset function after the tail plate rotates, preventing the tail plate from remaining offset due to inertia or external force. This ensures the stability of the rolling trajectory, reduces the need for manual intervention, and improves operational efficiency. The guide plate 12 and the arc-shaped guide shaft 14 form a precise guide path, limiting the tail plate's rotation range and preventing excessive offset. The elastic reset component provides restoring force, allowing the tail plate to automatically return to center after turning, ensuring that the rolling cylinder 11 moves along a straight line or a smooth arc. This significantly improves rolling uniformity and lawn smoothness, while reducing the frequency of directional adjustments by the operator.

[0031] like Figure 1 , 2 As shown, preferably, the arc-shaped guide shaft 14 protrudes horizontally away from the mounting plate 1. This protruding arc-shaped profile matches the tailplate's rotation trajectory, reducing friction and wear between the arc-shaped guide shaft 14 and the guide plate 12, ensuring smoother movement. This extends component life and reduces maintenance requirements.

[0032] like Figure 1 , 2As shown, preferably, the arc-shaped guide shaft 14 is fixed to the self-correcting rolling tail plate 8 by mounting ears 15 on both sides. The guide plate 12 has guide holes 13, through which the arc-shaped guide shaft 14 movably passes. The mounting ears 15 provide a secure fixation, preventing the arc-shaped guide shaft 14 from loosening; the guide holes 13 allow the arc-shaped guide shaft 14 to slide within a defined range, achieving precise guidance. This enhances the stability and durability of the self-correcting mechanism, avoiding failure due to vibration.

[0033] like Figure 1 , 2 As shown, preferably, the rotation trajectory of the self-correcting rolling tail plate 8 is centered on the hinge point 7. The arc-shaped profile of the arc-shaped guide shaft 14 and the rotation trajectory of the self-correcting rolling tail plate 8 are concentric circles. The concentric circle design ensures that the movement of the arc-shaped guide shaft 14 is completely synchronized with the rotation of the tail plate, eliminating motion interference or jamming. This optimizes the response speed of automatic correction and improves the performance of the device in complex terrain.

[0034] like Figure 1 , 2 As shown, preferably, the elastic reset assembly consists of a pair of springs 16 sleeved on the arc-shaped guide shaft 14. The arc-shaped guide shaft 14 passes through the guide plate 12 and is divided into two sections. The pair of springs 16 are respectively disposed on the arc-shaped guide shaft 14 on both sides of the guide plate 12, and one end of each spring 16 is fixedly connected to the mounting ear 15 facing the guide plate 12, and the other end is fixedly connected to the guide plate 12. As an elastic reset assembly, the springs 16 provide bidirectional restoring force, i.e., compression and tension. When the tail plate rotates, the springs 16 automatically apply a reverse force to return it to its original position. The design of the springs 16 on both sides ensures uniform force distribution, avoids unilateral wear, and improves calibration accuracy and reliability. At the same time, the springs 16 have a simple structure, low cost, and are easy to replace.

[0035] like Figure 1 , 2 , Figure 4 As shown, preferably, the self-correcting rolling tail plate 8 is disposed on the lower side of the tail of the mounting plate 1, and a plurality of rollers 10 are movably embedded on the self-correcting rolling tail plate 8 to reduce friction between the self-correcting rolling tail plate 8 and the mounting plate 1. The tail plate's lower position lowers the center of gravity and improves the stability of the device; the rollers 10 reduce sliding friction with the mounting plate 1, making rotation smoother and reducing energy consumption and noise. This extends the lifespan of the components and ensures that the correction mechanism remains highly efficient during long-term use.

[0036] like Figure 1 , 2As shown, preferably, the roller 11 is rotatably mounted on the downward-extending extension plates 9 on both sides of the self-correcting roller tail plate 8 at its axial center. The axis of the roller 11 is parallel to the mounting plate 1, and the axis of the roller 11 is perpendicular to the length direction of the mounting plate 1 when the lawn rolling device moves linearly as a whole. The extension plates 9 provide robust support, ensuring that the axis of the roller 11 is parallel to the mounting plate 1 and perpendicular to its length direction. This results in a uniform distribution of rolling pressure, preventing indentations or irregularities in the lawn. Rotary mounting reduces rolling resistance, improves efficiency, and adapts to lawn undulations.

[0037] like Figure 1 , 2 As shown, preferably, the mounting plate 1 has two downward recesses 3 on the sides of its center, and a personnel seat 5 is provided on the non-recessed area. The recesses 3 are provided with anti-slip textures 4. The recesses 3 are designed to provide standing or sitting space for the operator, optimizing ergonomics; the seat 5 increases comfort and reduces fatigue. The overall layout lowers the center of gravity, enhancing operational stability.

[0038] like Figure 1 , Figure 3 As shown, preferably, the internal structure of the rolling cylinder 11 is honeycomb-shaped, which maintains overall lightweight while enhancing structural rigidity and preventing deformation. Preferably, the self-correcting rolling tail plate is provided with a counterweight mounting area, which allows control of the pressure exerted by the rolling cylinder on the lawn by adjusting the planting density.

[0039] It should also be noted that the driving device in this embodiment drives the drive wheel 2, and the steering control device is linked with the steering wheel 6 to control the drive wheel 2 using existing solutions, so they will not be explained in detail here.

[0040] The method of using this utility model is as follows: The operator first sits or stands on the seat 5 of the mounting plate 1, ensuring that their feet are placed on the anti-slip ridges 4 in the recess 3 to prevent slipping. The drive unit is started, and the drive wheel 2 propels the device forward. The direction is controlled by turning the steering wheel 6, and the steering control device, in conjunction with the drive wheel 2, achieves steering. During forward movement, the rolling cylinder 11 rolls under the self-correcting rolling tail plate 8, evenly flattening the lawn. When turning or encountering uneven terrain, the self-correcting mechanism automatically activates, using the arc-shaped guide shaft 14 and spring 16 to quickly return the tail plate to its original position after horizontal rotation, maintaining the stable trajectory of the rolling cylinder 11 without manual adjustment. After completing the work, the drive unit is turned off. The entire process is simple and efficient, suitable for various lawn maintenance scenarios.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A lawn rolling device, characterized in that: It includes a mounting plate (1) that serves as a load-bearing base, and the mounting plate (1) is equipped with a drive device, a direction control device, and a self-correcting rolling tail plate (8) in sequence from front to back; a rolling cylinder (11) is rotatably mounted below the self-correcting rolling tail plate (8); The mounting plate (1) has a pair of drive wheels (2) driven by a drive device at its bottom. The mounting plate (1) has a steering wheel (6) which is linked to a steering control device and controls the drive wheels (2). The self-correcting rolling tail plate (8) is hinged to the tail of the mounting plate (1), so that the self-correcting rolling tail plate (8) can rotate horizontally relative to the mounting plate (1) around the hinge (7); a self-correcting mechanism is provided between the self-correcting rolling tail plate (8) and the mounting plate (1). The self-calibrating mechanism includes a guide plate (12) fixedly mounted on the mounting plate (1) and an arc-shaped guide shaft (14) fixedly mounted on the self-calibrating rolling tail plate (8). The arc-shaped guide shaft (14) passes through the guide plate (12). An elastic reset component is provided on the arc-shaped guide shaft (14). The elastic reset component cooperates with the arc-shaped guide shaft (14) to keep the rolling cylinder (11) on a stable movement trajectory.

2. The lawn rolling device according to claim 1, characterized in that: The arc-shaped profile of the arc-shaped guide shaft (14) protrudes horizontally away from the mounting plate (1).

3. The lawn rolling device according to claim 2, characterized in that: The arc-shaped guide shaft (14) is fixed to the self-correcting rolling tail plate (8) by mounting ears (15) on both sides. The guide plate (12) has a guide hole (13) and the arc-shaped guide shaft (14) moves through the guide hole (13).

4. The lawn rolling device according to claim 2, characterized in that: The rotation trajectory of the self-correcting rolling tail plate (8) is centered at the hinge (7), and the arc-shaped profile of the arc-shaped guide shaft (14) is concentric with the rotation trajectory of the self-correcting rolling tail plate (8).

5. The lawn rolling device according to claim 3, characterized in that: The elastic reset assembly consists of a pair of springs (16) sleeved on the arc-shaped guide shaft (14). The arc-shaped guide shaft (14) passes through the guide plate (12) and is divided into two sections. The pair of springs (16) are respectively set on the arc-shaped guide shaft (14) on both sides of the guide plate (12). One end of the spring (16) is fixedly connected to the mounting ear (15) facing the guide plate (12), and the other end is fixedly connected to the guide plate (12).

6. The lawn rolling device according to claim 1, characterized in that: The self-correcting rolling tail plate (8) is located on the lower side of the tail of the mounting plate (1), and several rollers (10) are movably embedded on the self-correcting rolling tail plate (8) to reduce the friction between the self-correcting rolling tail plate (8) and the mounting plate (1).

7. The lawn rolling device according to claim 1, characterized in that: The roller (11) is rotatably mounted on the extension plates (9) extending downward on both sides of the self-correcting roller tail plate (8) at the center of its two sides. The axis of the roller (11) is parallel to the mounting plate (1), and the axis of the roller (11) is perpendicular to the length direction of the mounting plate (1) when the lawn rolling device moves in a straight line.

8. The lawn rolling device according to claim 1, characterized in that: The mounting plate (1) has two downward recesses (3) on the middle side, and a seat (5) is provided at the non-recessed (3) location. Anti-slip ridges (4) are provided on the recesses (3).

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