Vegetation treading simulation device

Abstract

The invention provides a vegetation treading simulation device, and belongs to the technical field of vegetation aging resistance testing, and the vegetation treading simulation device comprises a fence, a main body and a simulation part; the fence is fixed on the ground; the main body is arranged on the inner side of the fence; the main body is in transmission connection with a translation driving mechanism and an orientation adjusting mechanism so that the main body can move in the horizontal direction and rotate with the vertical direction as the axis, and the main body further has the freedom degree of moving in the vertical direction; the main body is provided with a rotating roller rotationally connected with the main body and a rotating driving component in transmission connection with the rotating roller; the multiple sets of simulation pieces are arranged on the rotating roller at intervals in the axial direction of the rotating roller. Each group of simulation pieces comprises a plurality of pedals which are arranged at intervals in the circumferential direction of the rotating roller, and each pedal is arranged in a sliding manner in the radial direction of the rotating roller. The vegetation trampling simulation device provided by the invention can simulate trampling actions in different directions and at different positions, enables the main body to simulate various walking tracks of pedestrians on the vegetation surface through the translation driving mechanism and the orientation adjusting mechanism, and provides more accurate data for simulation.

Description

Technical Field

[0001] This invention belongs to the field of vegetation aging resistance testing technology, and more specifically, relates to a vegetation trampling simulation device. Background Technology

[0002] Simulated trampling of vegetation refers to a technique that uses artificial or mechanical means to simulate human trampling behavior on vegetation in order to assess indicators such as vegetation's resistance to trampling, recovery ability, and soil compaction. This technology is widely used in the maintenance and performance testing of sports field lawns, urban green spaces, golf courses, and other scenarios, aiming to optimize lawn management strategies and extend their service life.

[0003] Currently, vegetation trampling simulation is mainly achieved through artificial simulation experiments, which involve organizing personnel to repeatedly trample on specific areas of vegetation, and using sensors to monitor parameters such as soil compaction and vegetation lodging coefficient.

[0004] The inventors discovered that the differences in weight, gait, and trampling frequency among different testers led to large fluctuations in the test results, making it difficult to make cross-comparisons. Furthermore, the trampling force and uniformity depended on the testers' conscious control, which could easily result in localized over-trampling or missed areas, affecting the objectivity of the data.

[0005] Therefore, there is an urgent need in the existing technology for a vegetation trampling simulation device that can reduce simulation experiment errors and improve the reliability of experimental results. Summary of the Invention

[0006] The purpose of this application is to provide a vegetation trampling simulation device to solve the technical problems in the prior art where the test results fluctuate greatly and data is easily missed when conducting simulated trampling experiments by humans.

[0007] To achieve the above objectives, the technical solution adopted in this application is as follows: A vegetation trampling simulation device is provided, comprising: A fence is used to fix itself to the ground and surround the outer perimeter of the test area; A main body is disposed inside the fence; the main body has a degree of freedom of movement in the horizontal direction and is driven by a translation drive mechanism; the main body also has a degree of freedom of movement in the vertical direction relative to the translation drive mechanism, and a degree of freedom of rotation about the vertical direction; the main body is driven by an orientation adjustment mechanism for driving its rotation; the main body has a rotating roller rotatably connected to it and extending in the horizontal direction, and a rotation drive member driven by the rotating roller; and Multiple sets of simulation components are spaced apart on the rotating roller along its axial direction; each set of simulation components includes multiple pedals spaced apart along the circumference of the rotating roller, and each pedal is slidably arranged along the radial direction of the rotating roller to be adapted to move away from the rotating roller to abut against the vegetation surface.

[0008] In one possible implementation, the translation drive mechanism includes: A first movable seat is slidably connected to the upper side of the fence along the X direction and is driven by a first linear drive component; and The second movable seat is slidably connected to the first movable seat along the Y direction and is driven by a second linear drive component; The X and Y directions are both parallel to the horizontal plane and perpendicular to each other; the second movable seat is connected to the main body through the orientation adjustment mechanism, so that the main body has the degree of freedom to move in the vertical direction relative to the second movable seat, and the degree of freedom to rotate with the vertical direction as the axis.

[0009] In one possible implementation, the orientation adjustment mechanism includes: A connecting seat is disposed below the second movable seat and is rotatably connected to the second movable seat in the vertical direction; an external gear ring is sleeved on the connecting seat, and the connecting seat is slidably connected to the main body in the vertical direction through a directional sliding structure; and A drive gear is rotatably connected to the second movable seat in the up-down direction, and the drive gear meshes with the external gear ring; the drive gear is driven by a drive motor to drive the main body to rotate in the up-down direction as an axis.

[0010] In one possible implementation, the directional sliding structure includes: A guide hole is formed on the connecting seat, extending through the connecting seat in the vertical direction and coaxially arranged with the external gear ring; a limiting protrusion is provided on the inner wall of the guide hole; and The slide rod is slidably inserted into the guide hole, and the lower end of the slide rod is fixedly connected to the main body; the outer wall of the slide rod has a limiting groove extending in the vertical direction, and the limiting protrusion is slidably embedded in the limiting groove.

[0011] In one possible implementation, a third movable seat is further provided between the first movable seat and the fence; the third movable seat is slidably connected to the fence in the vertical direction, and the first movable seat and the third movable seat are slidably connected in the X direction; The third movable seat and the fence are provided with an adjustment mechanism, which is used to drive the third movable seat to move in the up and down direction to adjust the vertical distance between the third movable seat and the fence.

[0012] In one possible implementation, the adjusting mechanism includes: An adjustable distance seat is fixedly mounted on the third movable seat, and the adjustable distance seat has a threaded hole extending in the vertical direction; and A screw is rotatably connected to the fence in the up-down direction, and the axial direction of the screw is parallel to the up-down direction; The screw is threadedly connected to the threaded hole.

[0013] In one possible implementation, the pedal includes: A support base is slidably connected to the rotating roller along the radial direction of the rotating roller, and a telescopic adjustment mechanism is provided between the support base and the rotating roller to adjust the distance between the support base and the rotating roller; A base plate, hinged to the end of the support facing away from the rotating roller, with the hinge axis of the base plate parallel to the axis of the rotating roller, for swinging to contact the vegetation surface; and A buffer spring is disposed between the support base and the base plate, and its two ends are respectively connected to the support base and the base plate; When the base plate is in contact with the vegetation surface, the base plate is adapted to swing relative to the support seat so that the buffer spring extends or shortens.

[0014] In one possible implementation, the telescopic adjustment mechanism includes: A mounting base is detachably connected to the rotating roller, and a positioning groove is provided on the side of the mounting base facing the support base; a fixing bolt is threaded onto the mounting base, and the fixing bolt is adapted to extend into the positioning groove in a direction perpendicular to the axial direction of the positioning groove; and A connecting rod is fixedly installed on the side of the support base facing the mounting base, and the connecting rod is slidably inserted into the positioning groove; The fixing bolt is adapted to abut against the connecting rod to restrict the movement of the connecting rod relative to the mounting base.

[0015] In one possible implementation, the roller has an internally hollow structure, and the positioning groove is connected to the interior of the roller; Wherein, as the connecting rod moves toward the rotating roller, the connecting rod is adapted to be inserted into the interior of the rotating roller.

[0016] In one possible implementation, a plurality of water storage tanks are fixedly disposed on the main body, and when there are multiple water storage tanks, the multiple water storage tanks are arranged around the main body; The water tank is used to store liquid; by changing the mass of the liquid inside the water tank, the force applied by the pedal toward the vegetation surface can be adjusted.

[0017] In this embodiment, during the vegetation trampling simulation experiment, firstly, a fence is fixed to the ground, surrounding the outer perimeter of the test area. The fence serves to define the scope of the simulation, prevent interference from external factors, and ensure the relative independence and stability of the experimental environment. The main body is placed inside the fence, and the translation drive mechanism, orientation adjustment mechanism, and rotation drive component are checked for proper functioning. Parameters for each drive mechanism are set, determining the initial position, movement speed, rotation angle, and roller rotation speed of the main body according to experimental requirements. The translation drive mechanism is activated, causing the main body to move horizontally along a preset path and speed. This simulates the walking trajectory of pedestrians within a vegetated area, such as straight-line walking or zigzag walking. According to the experimental design, the orientation adjustment mechanism is used to rotate the main body relative to the translation drive mechanism. Up-down movement allows the main body to adapt to ground environments with varying elevations. When the main body moves to a slope, it gradually moves upward; when it moves to a low-lying area, it gradually moves downward. This design ensures that the main body remains in contact with the ground, preventing terrain undulations from affecting the accuracy of the simulation. Rotation changes the direction of movement, thus more realistically simulating various complex walking postures. The rotation drive component drives the rotating roller to rotate, and as the roller rotates, multiple sets of simulation components mounted on it begin to function. During the rotation of the roller, pedals come into contact with the vegetation surface, simulating the action of humans trampling on vegetation. The pedals are distributed circumferentially, and as the roller rotates, different pedals come into contact with the vegetation in sequence, achieving continuous trampling simulation. Each pedal is set to slide radially along the roller, allowing testers to retract some pedals back onto the roller, thus simulating trampling simulations with different numbers of people. After the experiment, the collected data is analyzed to understand the recovery of vegetation under different trampling conditions.

[0018] The vegetation trampling simulation device provided in this application embodiment, compared with the prior art, has the main body with the freedom of horizontal movement, vertical movement and rotation, which can comprehensively simulate various walking methods and postures of humans in vegetated areas; for example, it can simulate tourists walking and running freely in scenic areas, making the experimental results closer to reality; the fence setting provides a relatively closed and stable test site for the experiment, reducing the interference of external factors on the experimental results and improving the accuracy and reliability of the experimental data; by precisely controlling the parameters of each driving mechanism, the same trampling experiment can be repeated multiple times, ensuring the consistency and repeatability of the experimental results; this device can be applied to various types of vegetation research, whether it is herbaceous plants, shrubs or small trees, and effective trampling simulation experiments can be carried out by adjusting the parameters of the device and the settings of the simulation components, which is very important for in-depth research on the anti-trampling performance and recovery mechanism of vegetation. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a three-dimensional structural diagram of the vegetation trampling simulation device provided in an embodiment of the present invention; Figure 2 This is a front view structural diagram of the vegetation trampling simulation device provided in an embodiment of the present invention; Figure 3 This is a side view of the vegetation trampling simulation device provided in an embodiment of the present invention. Figure 4 A three-dimensional structural diagram of the main body, second movable seat, rotating roller, pedal, orientation adjustment mechanism and directional sliding structure provided for embodiments of the present invention; Figure 5 for Figure 4 A front view structural diagram; Figure 6 For along Figure 5 Schematic diagram of the cross-sectional structure along line AA; Figure 7 for Figure 4 A schematic diagram of the localized explosion structure; The following are the labeling elements in the figure: 1. Fence; 2. Main body; 21. Water tank; 3. Translation drive mechanism; 31. First moving seat; 32. Second moving seat; 4. Rotating roller; 41. Rotation drive component; 5. Pedal; 51. Support seat; 52. Base plate; 53. Buffer spring; 54. Telescopic adjustment mechanism; 541. Mounting seat; 542. Connecting rod; 543. Fixing bolt; 6. Orientation adjustment mechanism; 61. Connecting seat; 611. External gear ring; 62. Drive gear; 63. Drive motor; 7. Directional sliding structure; 71. Guide hole; 711. Limiting protrusion; 72. Slide rod; 721. Limiting groove; 8. Third moving seat; 9. Adjustment mechanism; 91. Adjustment seat; 92. Screw. Detailed Implementation

[0021] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0022] It should be noted that 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.

[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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.

[0024] Furthermore, 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, unless otherwise explicitly specified.

[0025] Please refer to the following: Figures 1 to 7 The vegetation trampling simulation device provided in this application will now be described. The vegetation trampling simulation device includes a fence 1, a main body 2, and multiple sets of simulation components.

[0026] Fence 1 is used to fix the device to the ground. Fence 1 can be assembled and can be disassembled and placed in a warehouse when not being tested, saving storage space. When testing is required, fence 1 can be transported to the vegetation area where the trampling simulation experiment needs to be conducted, and fence 1 can be assembled and fixed on site. The area enclosed by fence 1 is used as the test site. The setting of fence 1 provides a relatively closed and stable test site for the experiment, reducing the interference of external factors (such as wind, human activities, animal activities, etc.) on the experimental results and improving the accuracy and reliability of the experimental data.

[0027] The main body 2 is located inside the fence 1. The main body 2 has a degree of freedom to move horizontally and is connected to a translation drive mechanism 3. The translation drive mechanism 3 can be a sprocket and chain drive mechanism or a gear and rack drive mechanism and is driven by a servo motor. The main body 2 also has a degree of freedom to move vertically relative to the translation drive mechanism 3. The main body 2 can be connected to the fence 1 by a linear guide rail or a linear bearing, so that the distance between the main body 2 and the ground can be dynamically adjusted. The main body 2 also has a degree of freedom to rotate about the vertical axis. The main body 2 is connected to an orientation adjustment mechanism 6 for driving its rotation. The orientation adjustment mechanism 6 can be a gear ring mechanism or a servo motor to directly drive the rotation of the main body 2, so that the main body 2 can adjust its orientation when moving, thereby simulating different walking directions of humans. The main body 2 has a rotating roller 4 that is rotatably connected to it and extends horizontally. The axis of the rotating roller 4 is parallel to the horizontal direction, and a rotation drive component 41 is connected to the rotating roller 4. The rotation drive component 41 can be a servo motor.

[0028] Multiple sets of simulation components are spaced apart along the axial direction of the rotating roller 4. Each set of simulation components includes multiple pedals 5 spaced apart along the circumference of the rotating roller 4. Each pedal 5 is slidably arranged along the radial direction of the rotating roller 4 to facilitate moving away from the rotating roller 4 to abut against the vegetation surface. The side of the pedal 5 that contacts the vegetation surface simulates the shape of a human foot to simulate the situation of a human foot stepping on the vegetation. The pedal 5 is detachably connected to the rotating roller 4, and the size of the pedal 5 can be changed to simulate the stepping of people of different ages.

[0029] In this embodiment, during the vegetation trampling simulation experiment, firstly, the fence 1 is fixed to the ground, surrounding the outer perimeter of the test area. The fence 1 serves to define the scope of the simulation experiment, prevent interference from external factors, and ensure the relative independence and stability of the experimental environment. The main body 2 is placed inside the fence 1, and the translation drive mechanism 3, orientation adjustment mechanism 6, and rotation drive component 41 are checked for proper operation. Parameters are set for each drive mechanism, determining the initial position, moving speed, rotation angle, and rotation speed of the roller 4 based on experimental requirements. The translation drive mechanism 3 is activated, causing the main body 2 to move horizontally along a preset path and speed. This simulates the walking trajectory of pedestrians within the vegetation area, such as straight-line walking or zigzag walking. According to the experimental design, the orientation adjustment mechanism 6 is used to rotate the main body 2 relative to the translation drive mechanism 3. Up-down movement allows the main body 2 to adapt to ground environments with varying elevations. When the main body 2 moves to a slope, it gradually moves upward; when it moves to a low-lying area, it gradually moves downward. This design ensures that the main body 2 remains in contact with the ground, preventing terrain undulations from affecting the accuracy of the simulation. Rotation changes the direction of movement of the main body 2, thus more realistically simulating various complex walking postures. The rotation drive component 41 drives the rotating roller 4 to rotate. As the rotating roller 4 rotates, multiple sets of simulation components set on the rotating roller 4 begin to work. During the rotation of the rotating roller 4, the pedals 5 will abut against the vegetation surface, simulating the action of humans trampling on vegetation. The pedals 5 are distributed circumferentially. When the rotating roller 4 rotates, different pedals 5 will contact the vegetation in sequence, realizing continuous trampling simulation. Each pedal 5 is set to slide radially along the rotating roller 4. Testers can collect some pedals 5 back onto the rotating roller 4 to simulate trampling simulations by different numbers of people. After the experiment, the collected data is analyzed to understand the recovery of vegetation under different trampling conditions.

[0030] Compared with the prior art, the vegetation trampling simulation device provided in this application has the following advantages: the main body 2 has the freedom of horizontal movement, vertical movement, and rotation, which can comprehensively simulate various walking patterns and postures of humans in vegetated areas; for example, it can simulate tourists walking and running freely in scenic areas, making the experimental results closer to reality; the fence 1 provides a relatively closed and stable test site for the experiment, reducing the interference of external factors on the experimental results and improving the accuracy and reliability of the experimental data; by precisely controlling the parameters of each driving mechanism, the same trampling experiment can be repeated multiple times, ensuring the consistency and repeatability of the experimental results; this device can be applied to various types of vegetation research, whether it is herbaceous plants, shrubs or small trees, and effective trampling simulation experiments can be carried out by adjusting the parameters of the device and the settings of the simulation components, which is very important for in-depth research on the anti-trampling performance and recovery mechanism of vegetation.

[0031] In some embodiments, the translation drive mechanism 3 described above can be as follows: Figures 1 to 7 The structure shown is described in the following document. Figures 1 to 7 The translation drive mechanism 3 includes a first movable seat 31 and a second movable seat 32.

[0032] The first movable seat 31 is slidably connected to the upper side of the fence 1 along the X direction, and the first movable seat 31 is driven by a first linear drive component. The first movable seat 31 can be slidably connected to the fence 1 via a linear guide rail or a linear bearing. The first linear drive component can be a gear and rack mechanism or a sprocket and chain mechanism set on the fence 1, and is driven by a servo motor to drive the first movable seat 31 to move relative to the fence 1 along the X direction.

[0033] The second movable seat 32 is slidably connected to the first movable seat 31 along the Y direction, and the second movable seat 32 is driven by a second linear drive component. The second movable seat 32 can be slidably connected to the first movable seat 31 through a linear guide rail or a linear bearing. The second linear drive component can be a gear and rack mechanism or a sprocket and chain mechanism set on the first movable seat 31, and is driven by a servo motor to drive the second movable seat 32 to move relative to the first movable seat 31 along the Y direction.

[0034] It should be further noted that both the X and Y directions are parallel to the horizontal plane, and the X and Y directions are perpendicular to each other; the second moving seat 32 is connected to the main body 2 through the orientation adjustment mechanism 6, so that the main body 2 can move relative to the second moving seat 32 in the vertical direction, and has the degree of freedom to rotate with the vertical direction as the axis.

[0035] By setting up a translation drive mechanism 3 consisting of a first movable seat 31, a first linear drive component, a second movable seat 32, and a second linear drive component, the above structure can achieve horizontal movement of the main body 2 in mutually perpendicular X and Y directions, realizing the purpose of moving the main body 2 at any position in the horizontal plane, thereby achieving the technical effect of expanding the simulated trampling range and solving the technical problem of limited simulation range of single-direction movement.

[0036] In some embodiments, the orientation adjustment mechanism 6 described above may employ, for example... Figures 3 to 7 The structure shown is described in the following document. Figures 3 to 7 The orientation adjustment mechanism 6 includes a connecting seat 61 and a drive gear 62.

[0037] The connecting seat 61 is located on the lower side of the second movable seat 32, and the connecting seat 61 and the second movable seat 32 are rotatably connected in the vertical direction. The connecting seat 61 and the second movable seat 32 can be connected by a rotating bearing to reduce the resistance during rotation. An external gear ring 611 is sleeved on the arc-shaped outer peripheral wall of the connecting seat 61, and the connecting seat 61 is slidably connected to the main body 2 in the vertical direction through a directional sliding structure 7. The directional sliding structure 7 enables the connecting seat 61 and the second movable seat 32 to be rotatably connected in the vertical direction while also enabling the connecting seat 61 and the second movable seat 32 to be slidably connected in the vertical direction.

[0038] The drive gear 62 is rotatably connected to the second movable seat 32 in the up-down direction, and the drive gear 62 meshes with the external gear ring 611 on the connecting seat 61; the drive gear 62 is connected to the drive motor 63, and when the drive motor 63 drives the drive gear 62 to rotate, it can drive the external gear ring 611 to rotate, and at the same time drive the connecting seat 61 to rotate.

[0039] By setting up a direction adjustment mechanism 6 consisting of a connecting seat 61, an external gear ring 611, a drive gear 62, and a drive motor 63, the above structure can achieve the purpose of rotating the main body 2 around the vertical axis through the meshing transmission between the drive gear 62 and the external gear ring 611, thereby achieving the technical effect of simulating different pedaling directions. In actual testing, this device can realize the simulation of pedaling directions in any direction, making the simulated pedaling scenarios more diverse.

[0040] In some embodiments, the directional sliding structure 7 described above can be as follows: Figures 1 to 7 The structure shown is described in the following document. Figures 1 to 7 Guide hole 71 and slide rod 72.

[0041] A guide hole 71 is formed on the connecting seat 61. The guide hole 71 passes through the connecting seat 61 in the vertical direction and is coaxially arranged with the external gear ring 611. A limiting protrusion 711 is provided on the inner wall of the guide hole 71, and the limiting protrusion 711 extends in the vertical direction.

[0042] The slide rod 72 is slidably inserted into the guide hole 71, and the lower end of the slide rod 72 is fixedly connected to the main body 2; the outer wall of the slide rod 72 has a limiting groove 721 extending in the vertical direction, and the limiting protrusion 711 is slidably embedded in the limiting groove 721.

[0043] By setting a guide hole 71, a limiting protrusion 711, a slide rod 72, and a limiting groove 721 to form a directional sliding structure 7, the above structure can achieve the purpose of stable sliding of the main body 2 in the vertical direction through the sliding engagement of the limiting protrusion 711 and the limiting groove 721, without affecting the rotational engagement between the connecting seat 61 and the second moving seat 32; the above directional sliding structure 7 can enable the connecting seat 61 and the second moving seat 32 to be rotatably connected in the vertical direction while also enabling the connecting seat 61 and the second moving seat 32 to be slidably connected in the vertical direction.

[0044] In some embodiments, the first movable seat 31 and the fence 1 described above can be adopted as follows: Figures 1 to 3 The structure shown is described in the following document. Figures 1 to 3 A third movable seat 8 is also provided between the first movable seat 31 and the fence 1; the third movable seat 8 is slidably connected to the fence 1 in the vertical direction, and the first movable seat 31 and the third movable seat 8 are slidably connected in the X direction.

[0045] An adjusting mechanism 9 is provided between the third movable seat 8 and the fence 1. The adjusting mechanism 9 is used to drive the third movable seat 8 to move in the up and down direction to adjust the vertical distance between the third movable seat 8 and the fence 1. The adjusting mechanism 9 can be a cylinder, a hydraulic cylinder or a threaded adjusting structure. By setting up a third movable seat 8 and an adjustment mechanism 9, the above structure can adjust the vertical distance between the third movable seat 8 and the fence 1 through the adjustment mechanism 9, thereby achieving the purpose of adjusting the height of the main body 2 and thus achieving the technical effect of simulating the trampling of vegetation at different heights; at the same time, the adjustment mechanism 9 can also ensure that the movement direction of the first movable seat 31 and the second movable seat 32 is parallel to the horizontal plane when the terrain is uneven.

[0046] In some embodiments, the above-described adjusting mechanism 9 may employ, for example... Figures 1 to 3 The structure shown is described in the following document. Figures 1 to 3 The adjusting mechanism 9 includes an adjusting seat 91 and a screw 92.

[0047] The adjusting seat 91 is fixedly mounted on the third movable seat 8, and the adjusting seat 91 has a threaded hole that runs through the vertical direction.

[0048] The screw 92 is rotatably connected to the fence 1 in the up-down direction, and the axial direction of the screw 92 is parallel to the up-down direction; wherein, the screw 92 is threadedly connected to the threaded hole.

[0049] When the screw 92 is rotated, since the screw 92 is threadedly connected to the threaded hole on the adjusting seat 91, the rotation of the screw 92 drives the adjusting seat 91 and the third moving seat 8 to move in the vertical direction, thereby achieving height adjustment. By setting the adjusting seat 91, the threaded hole and the screw 92 to form the adjusting mechanism 9, the above structure can achieve the purpose of accurately adjusting the vertical distance between the third moving seat 8 and the fence 1 through the threaded connection between the screw 92 and the threaded hole.

[0050] In some embodiments, the pedal 5 described above may be as follows: Figures 1 to 7 The structure shown is described in the following document. Figures 1 to 7 The pedal 5 includes a support base 51, a base plate 52, and a buffer spring 53.

[0051] The support base 51 is slidably connected to the rotating roller 4 along the radial direction of the rotating roller 4, and a telescopic adjustment mechanism 54 is provided between the support base 51 and the rotating roller 4 to adjust the distance between the support base 51 and the rotating roller 4.

[0052] The base plate 52 is hinged to the end of the support base 51 facing away from the rotating roller 4, and the hinge axis of the base plate 52 is parallel to the axis of the rotating roller 4, so as to swing to contact the vegetation surface; during the trampling simulation experiment, it can ensure that the base plate 52 is fully in contact with the vegetation surface, and ensure the accuracy of the simulation.

[0053] The buffer spring 53 is disposed between the support base 51 and the base plate 52, and the two ends of the buffer spring 53 are respectively connected to the support base 51 and the base plate 52; the buffer spring 53 can also be replaced by a gas spring.

[0054] When the base plate 52 comes into contact with the vegetation surface, the base plate 52 is adapted to swing relative to the support 51, and the buffer spring 53 is adapted to extend or shorten, thereby buffering the impact force when the base plate 52 comes into contact with the vegetation surface.

[0055] The pedal 5 is composed of a support base 51, a telescopic adjustment mechanism 54, a base plate 52, and a buffer spring 53. The above structure can adjust the distance between the support base 51 and the rotating roller 4 and the telescopic coordination of the buffer spring 53 through the telescopic adjustment mechanism 54, thereby simulating different pedaling forces and buffering the impact of pedaling, thus achieving a more realistic technical effect of simulating human pedaling movements.

[0056] In some embodiments, the telescopic adjustment mechanism 54 may employ, for example... Figures 4 to 7 The structure shown is described in the following document. Figures 4 to 7 The telescopic adjustment mechanism 54 includes a mounting base 541 and a connecting rod 542.

[0057] Mounting seat 541 is detachably connected to roller 4. Testers can replace pedal 5 or repair pedal 5 by removing mounting seat 541. Mounting seat 541 has a positioning groove on the side facing support seat 51. Mounting seat 541 is threaded with fixing bolt 543, and fixing bolt 543 is adapted to extend into positioning groove in a direction perpendicular to the axial direction of positioning groove.

[0058] The connecting rod 542 is fixedly installed on the side of the support base 51 facing the mounting base 541, and the connecting rod 542 is slidably inserted into the positioning groove.

[0059] The fixing bolt 543 is adapted to abut against the connecting rod 542 to limit the movement of the connecting rod 542 relative to the mounting base 541. After the tester adjusts the length of the connecting rod 542 extending out of the rotating roller 4, the position of the connecting rod 542 can be fixed by rotating the fixing bolt 543.

[0060] The telescopic adjustment mechanism 54 is composed of a mounting base 541, a positioning groove, a fixing bolt 543, and a connecting rod 542. This structure restricts the movement of the connecting rod 542 by having the fixing bolt 543 abut against it, thus facilitating the adjustment and fixing of the distance between the support base 51 and the rotating roller 4. This achieves the technical effect of flexibly adjusting the pedal position and pressure. In some embodiments, the roller 4 described above may be as follows: Figures 1 to 7 The structure shown is described in the following document. Figures 1 to 7 The rotating roller 4 has an internally hollow structure, and the positioning groove is connected to the interior of the rotating roller 4.

[0061] When the connecting rod 542 moves toward the rotating roller 4, the connecting rod 542 is adapted to be inserted into the interior of the rotating roller 4; when it is necessary to shorten the distance between the pedal 5 and the rotating roller 4, the support seat 51 is pushed to move the connecting rod 542 toward the rotating roller 4, and the connecting rod 542 is inserted into the interior of the rotating roller 4.

[0062] By setting a structure in which the inside of the rotating roller 4 is hollow and the positioning groove is connected to the inside of the rotating roller 4, the above structure enables the connecting rod 542 to be inserted into the inside of the rotating roller 4 when it moves toward the rotating roller 4, thereby achieving the purpose of further shortening the distance between the pedal 5 and the rotating roller 4, thus achieving the technical effect of reducing the size of the device and adapting to different pedaling scenarios, and solving the technical problems of excessive device size and insufficient adaptability.

[0063] In some embodiments, the aforementioned subject 2 may adopt the following... Figures 1 to 7 The structure shown is described in the following document. Figures 1 to 7 Several water storage tanks 21 are fixedly installed on the main body 2, and when there are multiple water storage tanks 21, the multiple water storage tanks 21 are arranged around the main body 2.

[0064] The water tank 21 is used to store liquid, which can be water. By changing the mass of the liquid inside the water tank 21, the magnitude of the force applied by the pedal 5 toward the vegetation surface can be adjusted.

[0065] According to the required simulated trampling pressure, a certain amount of liquid is injected or discharged into the water tank 21 to change the mass of the liquid inside the water tank 21, thereby increasing or decreasing the force exerted by the pedal 5 on the vegetation surface. By setting up the water tank 21, the above structure can achieve the purpose of increasing the force exerted by the pedal 5 on the vegetation surface by changing the mass of the liquid inside the water tank 21, thereby achieving the technical effect of simulating the trampling pressure of people of different weights.

[0066] The above description is only a preferred embodiment of the present invention and is 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 vegetation trampling simulation device, characterized in that, include: A fence is used to fix itself to the ground and surround the outer perimeter of the test area; The main body is disposed inside the fence; the main body has a degree of freedom to move in the horizontal direction and is driven by a translation drive mechanism; the main body also has a degree of freedom to move in the vertical direction relative to the translation drive mechanism, and a degree of freedom to rotate about the vertical direction as an axis; the main body is driven by an orientation adjustment mechanism for driving its rotation; the main body has a rotating roller that is rotatably connected to it and extends in the horizontal direction, and a rotation drive member that is driven by the rotating roller. as well as Multiple sets of simulation components are spaced apart on the rotating roller along its axial direction; each set of simulation components includes multiple pedals spaced apart along the circumference of the rotating roller, and each pedal is slidably arranged along the radial direction of the rotating roller to be adapted to move away from the rotating roller to abut against the vegetation surface.

2. The vegetation trampling simulation device as described in claim 1, characterized in that, The translation drive mechanism includes: A first movable seat is slidably connected to the upper side of the fence along the X direction and is driven by a first linear drive component; and The second movable seat is slidably connected to the first movable seat along the Y direction and is driven by a second linear drive component; The X and Y directions are both parallel to the horizontal plane and perpendicular to each other; the second movable seat is connected to the main body through the orientation adjustment mechanism, so that the main body has the degree of freedom to move in the vertical direction relative to the second movable seat, and the degree of freedom to rotate with the vertical direction as the axis.

3. The vegetation trampling simulation device as described in claim 2, characterized in that, The orientation adjustment mechanism includes: A connecting seat is disposed below the second movable seat and is rotatably connected to the second movable seat in the vertical direction; an external gear ring is sleeved on the connecting seat, and the connecting seat is slidably connected to the main body in the vertical direction through a directional sliding structure; and A drive gear is rotatably connected to the second movable seat in the up-down direction, and the drive gear meshes with the external gear ring; the drive gear is driven by a drive motor to drive the main body to rotate in the up-down direction as an axis.

4. The vegetation trampling simulation device as described in claim 3, characterized in that, The directional sliding structure includes: A guide hole is formed on the connecting seat, extending through the connecting seat in the vertical direction and coaxially arranged with the external gear ring; a limiting protrusion is provided on the inner wall of the guide hole; and The slide rod is slidably inserted into the guide hole, and the lower end of the slide rod is fixedly connected to the main body; the outer wall of the slide rod has a limiting groove extending in the vertical direction, and the limiting protrusion is slidably embedded in the limiting groove.

5. The vegetation trampling simulation device as described in claim 2, characterized in that, A third movable seat is also provided between the first movable seat and the fence; the third movable seat is slidably connected to the fence in the vertical direction, and the first movable seat and the third movable seat are slidably connected in the X direction; The third movable seat and the fence are provided with an adjustment mechanism, which is used to drive the third movable seat to move in the up and down direction to adjust the vertical distance between the third movable seat and the fence.

6. The vegetation trampling simulation device as described in claim 5, characterized in that, The adjusting mechanism includes: An adjustable distance seat is fixedly mounted on the third movable seat, and the adjustable distance seat has a threaded hole extending in the vertical direction; and A screw is rotatably connected to the fence in the up-down direction, and the axial direction of the screw is parallel to the up-down direction; The screw is threadedly connected to the threaded hole.

7. The vegetation trampling simulation device as described in claim 1, characterized in that, The pedal includes: A support base is slidably connected to the rotating roller along the radial direction of the rotating roller, and a telescopic adjustment mechanism is provided between the support base and the rotating roller to adjust the distance between the support base and the rotating roller; A base plate, hinged to the end of the support facing away from the rotating roller, with the hinge axis of the base plate parallel to the axis of the rotating roller, for swinging to contact the vegetation surface; and A buffer spring is disposed between the support base and the base plate, and its two ends are respectively connected to the support base and the base plate; When the base plate is in contact with the vegetation surface, the base plate is adapted to swing relative to the support seat so that the buffer spring extends or shortens.

8. The vegetation trampling simulation device as described in claim 7, characterized in that, The telescopic adjustment mechanism includes: A mounting base is detachably connected to the rotating roller, and a positioning groove is provided on the side of the mounting base facing the support base; a fixing bolt is threaded onto the mounting base, and the fixing bolt is adapted to extend into the positioning groove in a direction perpendicular to the axial direction of the positioning groove; and A connecting rod is fixedly installed on the side of the support base facing the mounting base, and the connecting rod is slidably inserted into the positioning groove; The fixing bolt is adapted to abut against the connecting rod to restrict the movement of the connecting rod relative to the mounting base.

9. The vegetation trampling simulation device as described in claim 8, characterized in that, The rotating roller has an internally hollow structure, and the positioning groove is connected to the interior of the rotating roller; Wherein, as the connecting rod moves toward the rotating roller, the connecting rod is adapted to be inserted into the interior of the rotating roller.

10. The vegetation trampling simulation device as described in claim 1, characterized in that, A plurality of water storage tanks are fixedly installed on the main body, and when there are multiple water storage tanks, the multiple water storage tanks are arranged around the main body; The water tank is used to store liquid; by changing the mass of the liquid inside the water tank, the force applied by the pedal toward the vegetation surface can be adjusted.

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