All-terrain automatic mower

Abstract

The invention belongs to the technical field of mowing devices, and discloses an all-terrain automatic mower which comprises a machine base, a main air pump is fixedly connected to the rear portion of the bottom end of the machine base, the output end of the main air pump fixedly communicates with a three-way valve, the front end of the three-way valve fixedly communicates with an air conveying pipe, and the bottom end of the three-way valve fixedly communicates with a corrugated pipe. A longitudinal fixing pipe is fixedly connected to the position, close to the front side, of the bottom end of the machine base. Air is guided into the longitudinal fixing pipe through the main air pump, the mowing assembly capable of moving up and down is matched, the mowing assembly can automatically descend through increased air during weeding, the mowing assembly can automatically ascend when encountering a high obstacle to affect weeding, the whole process can be determined and completed by the system, and the mowing efficiency is improved. The problem that the device is damaged due to the fact that a mowing assembly of a traditional mower is prone to colliding with an obstacle in the complex terrain can be effectively solved, and the service life of the device is remarkably prolonged.

Description

Technical Field

[0001] This invention belongs to the field of grass mowing device technology, specifically an all-terrain automatic grass mower. Background Technology

[0002] A lawnmower is a mechanical device used to trim and clean lawns, turf, and other vegetation. It typically consists of an engine and rotating blades that cut and trim the grass. Lawnmowers can be push-operated, ride-on, or even self-driving. They are commonly used for maintaining home lawns, parks, golf courses, and other large lawns. Using lawnmowers effectively keeps lawns clean and promotes healthy growth. Currently, the main types of automatic lawnmowers are handheld, ride-on, and fully automatic, with increasing structural complexity. Fully automatic lawnmowers are the most efficient and widely used for mowing large areas.

[0003] Fully automatic lawnmowers typically have multiple built-in sensors and radars, along with a map of the current area or a self-generated map. They generally drive automatically along a predetermined path and navigate to a designated location after mowing. They achieve automatic mowing without requiring manual intervention. However, when mowing in complex scenarios, these lawnmowers still have some issues. For example, when encountering protrusions or obstacles—obstacles that do not require detours—the lawnmower's suspension and track system can cross over the obstacles, but the front mowing mechanism is prone to collisions with them, leading to damage. Improvements are urgently needed.

[0004] Conventional automatic lawnmowers have a mowing mechanism installed at the front of the device. Driven by an electric motor, the mowing blades can rotate or move quickly to cut the weeds at the front. Although this mowing method can quickly remove weeds, due to complex terrain, some weeds grow between plants. This fixed-area mowing mechanism cannot cut between plants, that is, it leaves the current plant and cuts the weeds at both ends, which is not very adaptable. Summary of the Invention

[0005] The purpose of this invention is to provide an all-terrain automatic lawn mower to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an all-terrain automatic lawn mower, comprising a base, a main air pump fixedly connected to the rear of the bottom end of the base, a three-way valve fixedly connected to the output end of the main air pump, an air supply pipe fixedly connected to the front end of the three-way valve, a bellows fixedly connected to the bottom end of the three-way valve, a longitudinal fixing pipe fixedly connected to the bottom end of the base near the front side, a first piston plate movably sleeved inside the longitudinal fixing pipe, the first piston plate moving vertically relative to the longitudinal fixing pipe, and a first piston rod fixedly connected to the bottom end of the first piston plate inside the longitudinal fixing pipe. The bottom end of a piston rod passes through the bottom end of a longitudinal fixed tube and is fixedly connected to a lifting frame located below the longitudinal fixed tube. A fixed guide rail is fixedly connected to the left side of the bottom end of the lifting frame. Both sides of the fixed guide rail are movably engaged with mowing components. A fixed sleeve is fixedly connected to the right side of the bottom end of the lifting frame. An adjusting component is fixedly fitted inside the fixed sleeve. The front end of the adjusting component is connected to two mowing components. A first air intake valve is fixedly connected to the right side of the longitudinal fixed tube near the top end. A first exhaust valve is fixedly connected to the left side of the longitudinal fixed tube near the top end. The first air intake valve is connected to an air supply pipe.

[0007] Before use, you can input a map into the device based on the area to be weeded and plan the weeding path. The device has a built-in high-capacity lithium battery, and you need to ensure that the battery is fully charged before each weeding session to complete the preparation work.

[0008] As a further technical solution of the present invention, obstacle avoidance sensors are fixedly installed at equal intervals on the front of the base, an ultra-wide-angle camera is fixedly installed on the front of the base near the top, a lidar is fixedly installed on the top of the base near the front end, and distance sensors are fixedly installed on both the left and right ends of the bottom of the base near the front side.

[0009] As a further technical solution of the present invention, a main power box is fixedly connected to the rear end of the base, and power distribution boxes are connected to the left and right sides of the bottom of the base. The main power box and the power distribution boxes are connected by transmission. The two power distribution boxes are connected by transmission to a suspension system at their relatively far ends. A triangular track is sleeved on the outer side of the suspension system.

[0010] During operation, the main power box provides power to the entire device. The main power box contains a motor and a gear set consisting of multiple gears for speed control and torque amplification. Power is then transmitted to the power distribution box, which in turn transmits power to the suspension system for rotation. The triangular tracks on the outer side of the suspension system then move, causing the device to shift. The suspension system contains multiple dampers and suspension components, allowing the triangular tracks to deform and adapt to different terrains. An ultra-wide-angle camera captures images of the road ahead, while obstacle avoidance sensors calculate the distance to the front for obstacle avoidance. A top-mounted lidar model the terrain, creating a map, and a bottom-mounted distance sensor calculates the distance between the chassis and the ground, providing data support for obstacle avoidance and the raising and lowering of the mowing components.

[0011] As a further technical solution of the present invention, both the first intake valve and the first exhaust valve are equipped with one-way valves, and the valves are respectively open to the inside of the longitudinal fixed pipe and closed to the outside of the longitudinal fixed pipe, and open to the outside of the longitudinal fixed pipe and closed to the inside of the longitudinal fixed pipe.

[0012] When the mowing assembly needs to be lowered to cut the weeds at the bottom, compressed air can be input into the three-way valve by turning on the main air pump. At this time, the air can be discharged through the front end of the three-way valve and enter the air supply pipe, and then introduced into the first air intake valve. At this time, the air inside the longitudinal fixed pipe increases, and applies pressure to the first piston plate, that is, the first piston plate and the first piston rod move down. At the same time, the first return spring is compressed, and the lifting frame moves down, driving the fixed guide rail at the bottom to move down. That is, the mowing assembly at the bottom moves down synchronously to complete the descent of the mowing assembly. Conversely, when the distance sensor detects that the distance between the device chassis and the ground is too close, the air input into the first air intake valve can be stopped, and the first exhaust valve can be opened to release the air in the longitudinal fixed pipe. At this time, the first return spring automatically resets and drives the lifting frame to rise automatically, ultimately achieving synchronous rise of the mowing assembly and the adjustment assembly, avoiding collisions with obstacles.

[0013] By utilizing air pressure, the main air pump introduces air into the interior of the longitudinal fixed tube, and in conjunction with the vertically movable mowing assembly, the increased airflow allows the mowing assembly to automatically descend during weeding. When encountering tall obstacles that affect weeding, it can also automatically rise. The entire process can be determined and completed by the system itself, effectively avoiding the problem of traditional lawnmowers' mowing assemblies colliding with obstacles in complex terrain, causing damage to the device, and significantly improving the service life of the device.

[0014] As a further technical solution of the present invention, the mowing component includes a housing, and a rotating component is provided at the rear end of the housing. A micro motor is built into the rotating component and the output end of the micro motor is connected to the middle of the rear end of the housing. The housing rotates relative to the rotating component. A guide block is fixedly connected to the rear end of the rotating component. The guide block is movably engaged with a fixed guide rail. The guide block moves left and right relative to the fixed guide rail.

[0015] As a further technical solution of the present invention, the left and right sides of the inner cavity of the housing are movably connected to the drive shaft, and the top of the housing is fixedly connected to one side of the drive motor. The output end of the drive motor is connected to the drive shaft on one side. The outer sides of the two drive shafts are provided with a synchronous belt and the synchronous belt is movably sleeved with the two drive shafts. The outer side of the synchronous belt is fixedly sleeved with a mowing chain, and the front end of the mowing chain protrudes from the front end of the housing.

[0016] When mowing, the rotation of the casing can be controlled by turning on the micro motor inside the rotating part to find the appropriate mowing angle. At the same time, the drive motor can be started to output the material to the transmission shaft. At this time, the mowing chain on the outer side can be moved at high speed through the transmission of the synchronous belt, and the weeds at the front end can be cut by the high-speed moving mowing chain.

[0017] As a further technical solution of the present invention, the adjustment component includes a horizontal fixing tube, a second air intake valve is fixedly connected to the top end of the rear side of the horizontal fixing tube, a second exhaust valve is fixedly connected to the bottom end of the rear side of the horizontal fixing tube, a second piston plate is movably sleeved inside the horizontal fixing tube, and a second piston rod located inside the horizontal fixing tube is fixedly connected to one end of the second piston plate near the mowing component.

[0018] As a further technical solution of the present invention, the end of the second piston rod away from the second piston plate passes through one end of the transverse fixing tube and is fixedly connected to the mounting plate. The outer side of the second piston rod is movably sleeved with a second return spring. The left and right ends of the second return spring are respectively connected to one end of the inner cavity of the transverse fixing tube and one end of the second piston plate.

[0019] As a further technical solution of the present invention, the left and right sides of the mounting plate away from the second piston rod are fixedly connected to the first mounting seat. The end of the first mounting seat away from the mounting plate is movably connected to the connecting rod through a rotating shaft. The end of the connecting rod away from the first mounting seat is movably connected to the second mounting seat through a rotating shaft. The end of the second mounting seat away from the connecting rod is connected to the guide block.

[0020] As a further technical solution of the present invention, the bottom end of the second exhaust valve is fixedly connected to a nozzle, and both the second air inlet valve and the second exhaust valve are equipped with one-way valves, and the valves are respectively open to the inside of the horizontal fixed pipe and closed to the outside of the horizontal fixed pipe, and open to the outside of the horizontal fixed pipe and closed to the inside of the horizontal fixed pipe.

[0021] When it is necessary to avoid plants, i.e., to cut weeds at both ends of the plants, air can be introduced into the second air intake valve through the bellows and into the transverse fixed tube by opening the valve. As the air increases, pressure is applied to the second piston plate towards the front end. At this time, the second return spring is compressed, and the second piston plate and the second piston rod move towards the front end, i.e., the mounting plate moves towards the front end. At this time, the two connecting rods are subjected to force and deflect, i.e., the included angle between the two connecting rods increases, i.e., the two second mounting seats move away from each other. Under the guidance of the guide block and the fixed guide rail, the two mowing components can be moved away from each other, i.e., the distance between the two mowing components increases, so that the plants can pass between the two mowing components to complete the weeding between plants. Conversely, releasing all the air inside the transverse fixed tube can bring the two mowing components closer together and reduce their distance, so as to achieve rapid mowing.

[0022] By utilizing air pressure and combining it with two separate mowing components, air can be introduced when needed to separate the two mowing components and increase their spacing, meeting the needs of mowing between plants. This allows it to cut weeds at both ends of normal plants without damaging them. When needed, the two mowing components can be brought closer together to form a larger mowing blade to quickly cut weeds at the front. Overall, it has strong adaptability and can meet different mowing needs.

[0023] Meanwhile, while mowing is in progress, the airflow inside the horizontal fixed pipe can be kept constant, and the valve of the second exhaust valve can be opened. At this time, air enters the horizontal fixed pipe and is discharged through the second exhaust valve at the bottom, and is sprayed out through the nozzle and acts on the bottom of the device. At this time, the high-speed airflow can act on the ground after weeding and blow the weeds to both ends of the device, thus sweeping the weeds.

[0024] By directly utilizing airflow, the automatic lifting and lowering of the mowing components and the separation and approach between the two mowing components can be achieved through airflow. The rapid airflow can also be used to quickly remove weeds on the ground, causing the weeds to move away from both ends of the device, reducing the interference of weeds at the bottom of the device with the device's movement, completing the opening of the path, and improving the device's movement efficiency.

[0025] The beneficial effects of this invention are as follows: 1. This invention utilizes air pressure, introducing air into the interior of a longitudinally fixed tube via a main air pump. This, combined with a vertically movable mowing component, allows the mowing component to automatically descend during weeding by using the increased airflow. Conversely, it can automatically rise when encountering tall obstacles that interfere with weeding. The entire process can be determined and completed autonomously by the system, effectively avoiding the problem of traditional lawnmowers' mowing components colliding with obstacles in complex terrain, thus significantly improving the device's lifespan.

[0026] 2. This invention utilizes air pressure again and, in conjunction with two separate mowing components, allows air to be introduced when needed to separate the two mowing components and increase their spacing, meeting the needs of mowing between plants. This allows it to cut weeds at both ends of normal plants without damaging them. When needed, the two mowing components can be brought closer together to form a larger mowing blade to quickly cut weeds at the front. Overall, it has strong adaptability and can meet different mowing needs.

[0027] 3. By directly utilizing the flow of air, this invention enables the automatic lifting and lowering of the mowing components and the separation and approach between the two mowing components. It can also directly utilize the rapid flow of air to quickly remove weeds on the ground, causing the weeds to move away from both ends of the device, reducing the interference of weeds at the bottom of the device on the device's movement, completing the opening of the road, and improving the device's travel efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the back-end structure of the present invention; Figure 3 This is a schematic diagram of the bottom structure of the present invention; Figure 4 This is a schematic diagram of the concealed base structure of the present invention; Figure 5 This is a schematic diagram showing the cooperation between the main air pump and the three-way valve structure of the present invention; Figure 6 This is a cross-sectional schematic diagram of the internal structure of the longitudinal fixed tube of the present invention; Figure 7 This is a schematic diagram showing the cooperation between the adjustment component, the mowing component, and the fixed guide rail structure of the present invention; Figure 8 This is a separate cross-sectional schematic diagram of the adjustment component structure of the present invention; Figure 9 This is a separate exploded view of the lawn mowing component structure of the present invention.

[0029] In the diagram: 1. Base; 2. Obstacle avoidance sensor; 3. LiDAR; 4. Ultra-wide-angle camera; 5. Main drive box; 6. Power distribution box; 7. Distance sensor; 8. Suspension system; 9. Triangular track; 10. Main air pump; 11. Three-way valve; 12. Bellows; 13. Air supply pipe; 14. Longitudinal fixed pipe; 15. First intake valve; 16. First exhaust valve; 17. First piston plate; 18. First piston rod; 19. First return spring; 20. Lifting frame; 21. Fixing sleeve; 22. Adjustment assembly; 1. Horizontal fixed tube; 222. Second air inlet valve; 223. Second exhaust valve; 224. Nozzle; 225. Second piston plate; 226. Second piston rod; 227. Second return spring; 228. Mounting plate; 229. First mounting base; 2210. Second mounting base; 2211. Connecting rod; 23. Mowing assembly; 231. Housing; 232. Drive motor; 233. Guide block; 234. Rotating component; 235. Drive shaft; 236. Synchronous belt; 237. Mowing chain; 24. Fixed guide rail. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figures 1 to 9As shown in the embodiment of the present invention, an all-terrain automatic lawnmower includes a base 1. A main air pump 10 is fixedly connected to the rear of the bottom end of the base 1. A three-way valve 11 is fixedly connected to the output end of the main air pump 10. An air supply pipe 13 is fixedly connected to the front end of the three-way valve 11. A bellows pipe 12 is fixedly connected to the bottom end of the three-way valve 11 near the front side. A first piston plate 17 is movably sleeved inside the longitudinal fixing pipe 14. The first piston plate 17 moves vertically relative to the longitudinal fixing pipe 14. A first piston rod 18 located inside the longitudinal fixing pipe 14 is fixedly connected to the bottom end of the first piston plate 17. The bottom end of the first piston rod 18 passes through... A lifting frame 20 located below the longitudinal fixed pipe 14 is fixedly connected to the bottom end of the lifting frame 20. A fixed guide rail 24 is fixedly connected to the left side of the bottom end of the lifting frame 20. Both sides of the fixed guide rail 24 are movably engaged with mowing components 23. A fixed sleeve 21 is fixedly connected to the right side of the bottom end of the lifting frame 20. An adjusting component 22 is fixedly fitted inside the fixed sleeve 21. The front end of the adjusting component 22 is connected to the two mowing components 23. A first air inlet valve 15 is fixedly connected to the right side of the longitudinal fixed pipe 14 near the top end. A first exhaust valve 16 is fixedly connected to the left side of the longitudinal fixed pipe 14 near the top end. The first air inlet valve 15 is connected to the air supply pipe 13.

[0033] Before use, you can input a map into the device based on the area to be weeded and plan the weeding path. The base 1 has a built-in high-capacity lithium battery, and you need to ensure that the battery is fully charged before each weeding to complete the preparation work before weeding.

[0034] like Figure 1 and Figure 2 as well as Figure 3 As shown, obstacle avoidance sensors 2 are fixedly installed at equal intervals on the front of the base 1. An ultra-wide-angle camera 4 is fixedly installed on the front of the base 1 near the top. A lidar 3 is fixedly installed on the top of the base 1 near the front end. Distance sensors 7 are fixedly installed on both the left and right ends near the front of the bottom of the base 1. A drive gearbox 5 is fixedly connected to the rear end of the base 1. Power distribution boxes 6 are connected to both the left and right sides of the bottom of the base 1. The drive gearbox 5 and the power distribution boxes 6 are connected by transmission. The ends of the two power distribution boxes 6 that are relatively far apart are connected by transmission to a suspension system 8. Triangular tracks 9 are fitted onto the outer side of the suspension system 8.

[0035] Among them, obstacle avoidance sensor 2 is model LM393, ultra-wide-angle camera 4 uses a 180-degree ultra-wide-angle fisheye monitoring lens, lidar 3 is model Livox Mid-40, and distance sensor 7 is model GP2Y0A02YK0F.

[0036] During use, the main power box 5 provides power to the entire device. The main power box 5 contains a motor and a gear set composed of multiple gears for speed control and torque amplification. The main power box 5 can transmit power to the power distribution box 6, which in turn transmits power to the suspension system 8 for rotation. At this time, the triangular track 9 located on the outer side of the suspension system 8 is driven and moves the device. The suspension system 8 is equipped with multiple dampers and suspension components, which can deform the triangular track 9 to adapt to different terrains. At the same time, the ultra-wide-angle camera 4 can capture the road conditions in front of the device. Secondly, the obstacle avoidance sensor 2 can calculate the distance in front to realize obstacle avoidance. Meanwhile, the lidar 3 at the top can realize terrain modeling to complete the map creation. Secondly, the distance sensor 7 at the bottom can realize the distance between the chassis and the ground to calculate the distance between the chassis and the ground, providing data support for subsequent obstacle avoidance and the raising and lowering of the mowing component 23.

[0037] like Figure 4 and Figure 6 As shown, both the first intake valve 15 and the first exhaust valve 16 are equipped with one-way valves, and the valves are respectively open to the inside of the longitudinal fixed pipe 14 and closed to the outside of the longitudinal fixed pipe 14, and open to the outside of the longitudinal fixed pipe 14 and closed to the inside of the longitudinal fixed pipe 14.

[0038] Example 1: When it is necessary to lower the mowing assembly 23 to cut the weeds at the bottom, compressed air can be input into the three-way valve 11 by turning on the main air pump 10. At this time, the air can be discharged through the front end of the three-way valve 11 and enter the air supply pipe 13, and then introduced into the first air inlet valve 15 through the air supply pipe 13. At this time, the air in the longitudinal fixed pipe 14 increases accordingly and applies pressure to the first piston plate 17, that is, the first piston plate 17 and the first piston rod 18 move down accordingly. At the same time, the first return spring 19 is compressed. At this time, the lifting frame 2 The 0 moves down, causing the bottom fixed guide rail 24 to move down as well. This means the bottom mowing component 23 moves down synchronously, completing the descent of the mowing component 23. Conversely, when the distance sensor 7 detects that the device chassis is too close to the ground, it stops inputting air into the first air inlet valve 15 and opens the first exhaust valve 16 to release the air inside the longitudinal fixed pipe 14. At this time, the first reset spring 19 automatically resets and drives the lifting frame 20 to rise automatically, ultimately achieving the synchronous rise of the mowing component 23 and the adjustment component 22, avoiding collisions with obstacles.

[0039] By utilizing air pressure, the main air pump 10 introduces air into the interior of the longitudinal fixed pipe 14, and in conjunction with the vertically movable mowing component 23, the increased air pressure allows the mowing component 23 to automatically descend during mowing. When encountering tall obstacles that affect mowing, it can also automatically rise. The entire process can be determined and completed by the system itself, which can effectively avoid the problem of the mowing component 23 of traditional lawnmowers easily colliding with obstacles in complex terrain, causing damage to the device, and significantly improving the service life of the device.

[0040] like Figure 3 and Figure 4 as well as Figure 7 and Figure 9 As shown, the mowing assembly 23 includes a housing 231. A rotating component 234 is provided at the rear end of the housing 231. A micro motor is built into the rotating component 234, and the output end of the micro motor is connected to the middle of the rear end of the housing 231. The housing 231 rotates relative to the rotating component 234. A guide block 233 is fixedly connected to the rear end of the rotating component 234. The guide block 233 is movably engaged with a fixed guide rail 24. The guide block 233 moves left and right relative to the fixed guide rail 24. Drive shafts 235 are movably connected to both sides of the inner cavity of the housing 231. A drive motor 232 is fixedly connected to one side of the top of the housing 231. The output end of the drive motor 232 is connected to the drive shaft 235 on one side. A synchronous belt 236 is provided on the outer side of the two drive shafts 235, and the synchronous belt 236 is movably sleeved with the two drive shafts 235. A mowing chain 237 is fixedly sleeved on the outer side of the synchronous belt 236. The front end of the mowing chain 237 protrudes from the front end of the housing 231.

[0041] When mowing, the rotation of the housing 231 can be controlled by turning on the micro motor inside the rotating part 234 to find a suitable mowing angle. At the same time, the drive motor 232 can be started to output the material to the transmission shaft 235. At this time, the mowing chain 237 on the outer side can be moved at high speed through the transmission of the synchronous belt 236, and the mowing chain 237 can then be used to cut the weeds at the front end.

[0042] like Figure 3 and Figure 4 as well as Figure 7 and Figure 8As shown, the adjustment assembly 22 includes a transverse fixing tube 221. A second air intake valve 222 is fixedly connected to the top of the rear side of the transverse fixing tube 221, and a second exhaust valve 223 is fixedly connected to the bottom of the rear side of the transverse fixing tube 221. A second piston plate 225 is movably sleeved inside the transverse fixing tube 221. A second piston rod 226 located inside the transverse fixing tube 221 is fixedly connected to one end of the second piston plate 225 near the mowing assembly 23. The end of the second piston rod 226 away from the second piston plate 225 passes through one end of the transverse fixing tube 221 and is fixedly connected to a mounting plate 228. A second return spring 227 is movably sleeved on the outer side of the second piston rod 226. The left and right ends of the second return spring 227 are respectively connected to one end of the inner cavity of the transverse fixing tube 221 and one end of the second piston plate 225. The mounting plate 228 is fixedly connected to the left and right sides of the end away from the second piston rod 226. The end of the first mounting plate 229 away from the mounting plate 228 is movably connected to the connecting rod 2211 through a rotating shaft. The end of the connecting rod 2211 away from the first mounting plate 229 is movably connected to the second mounting plate 2210 through a rotating shaft. The end of the second mounting plate 2210 away from the connecting rod 2211 is connected to the guide block 233. The bottom end of the second exhaust valve 223 is fixedly connected to the nozzle 224. The second intake valve 222 and the second exhaust valve 223 are both equipped with one-way valves. The valves are respectively open to the inside of the transverse fixed pipe 221 and closed to the outside of the transverse fixed pipe 221, and open to the outside of the transverse fixed pipe 221 and closed to the inside of the transverse fixed pipe 221. Example

[0043] When it is necessary to avoid the plant, i.e., to cut the weeds at both ends of the plant, air can be introduced into the second air intake valve 222 through the bellows 12 and into the transverse fixed pipe 221 by opening the valve of the second air intake valve 222. As the air increases, pressure is applied to the second piston plate 225 towards the front end. At this time, the second return spring 227 is compressed, and the second piston plate 225 and the second piston rod 226 move forward accordingly, i.e., the mounting plate 228 moves forward. At this time, the two connecting rods 2211 are subjected to pressure. The force is applied and deflected, that is, the included angle between the two connecting rods 2211 increases, that is, the two second mounting seats 2210 move away from each other. At this time, under the guidance of the guide block 233 and the fixed guide rail 24, the two mowing components 23 can be moved away from each other, that is, the distance between the two mowing components 23 increases, so that the plants can pass through the two mowing components 23 to complete the weeding between plants. Conversely, releasing all the air inside the horizontal fixed tube 221 can make the two mowing components 23 move closer to each other and reduce their distance, so as to achieve rapid mowing operation.

[0044] By utilizing air pressure again and in conjunction with two separate mowing components 23, air can be introduced when needed to separate the two mowing components 23 and increase their spacing to meet the needs of mowing between plants. This allows it to cut weeds at both ends of normal plants without damaging them. When needed, the two mowing components 23 can be brought closer together to form a larger mowing blade to quickly cut weeds at the front. Overall, it has strong adaptability and can meet different mowing needs.

[0045] Meanwhile, during mowing, the airflow inside the horizontal fixed pipe 221 can be kept constant, and the valve of the second exhaust valve 223 can be opened. At this time, air enters the horizontal fixed pipe 221 and is discharged through the second exhaust valve 223 at the bottom, and is sprayed out through the nozzle 224 and acts on the bottom of the device. At this time, the high-speed airflow can act on the ground after weeding and blow the weeds to both ends of the device, thus sweeping the weeds.

[0046] By directly utilizing the airflow, the automatic lifting and lowering of the mowing component 23 and the separation and approach between the two mowing components 23 are achieved through airflow. The rapid airflow can also be used to quickly remove weeds on the ground, causing the weeds to move away from both ends of the device, reducing the interference of weeds at the bottom of the device on the device's movement, completing the opening of the road, and improving the device's movement efficiency.

[0047] Working principle and usage process: During use, the main power box 5 provides power to the entire device. The main power box 5 contains a motor and a gear set composed of multiple gears for speed control and torque amplification. The main power box 5 can transmit power to the power distribution box 6, which in turn transmits power to the suspension system 8 for rotation. At this time, the triangular track 9 located on the outer side of the suspension system 8 will be driven and move the device. The suspension system 8 is equipped with multiple dampers and suspension components, which can make the triangular track 9 deform to adapt to different terrains. Meanwhile, the ultra-wide-angle camera 4 can capture the road conditions in front of the device. Secondly, the obstacle avoidance sensor 2 can calculate the distance in front to realize obstacle avoidance. At the same time, the lidar 3 at the top can realize terrain modeling to complete the map creation. Secondly, the distance sensor 7 at the bottom can realize the distance between the chassis and the ground to calculate the distance between the chassis and the ground, providing data support for subsequent obstacle avoidance and the raising and lowering of the mowing component 23. When the mowing assembly 23 needs to be lowered to cut the weeds at the bottom, compressed air can be input into the three-way valve 11 by turning on the main air pump 10. At this time, the air can be discharged through the front end of the three-way valve 11 and enter the air supply pipe 13, and then introduced into the first air intake valve 15 through the air supply pipe 13. At this time, the air in the longitudinal fixed pipe 14 increases accordingly, and applies pressure to the first piston plate 17, that is, the first piston plate 17 and the first piston rod 18 move down accordingly. At the same time, the first return spring 19 is compressed, and the lifting frame 20 moves accordingly. The lowering mechanism moves the fixed guide rail 24 at the bottom down, which in turn moves the mowing component 23 at the bottom down synchronously. Conversely, when the distance sensor 7 detects that the device chassis is too close to the ground, it can stop inputting air into the first air inlet valve 15 and open the first exhaust valve 16 to release the air inside the longitudinal fixed pipe 14. At this time, the first reset spring 19 automatically resets and drives the lifting frame 20 to rise automatically, thus achieving the synchronous rise of the mowing component 23 and the adjustment component 22, avoiding collisions with obstacles. When mowing, the rotation of the housing 231 can be controlled by turning on the micro motor inside the rotating part 234 to find a suitable mowing angle. At the same time, the drive motor 232 can be started to output the material to the transmission shaft 235. At this time, the mowing chain 237 on the outer side can be moved at high speed through the transmission of the synchronous belt 236, and the mowing chain 237 at high speed can then be used to cut the weeds at the front. When it is necessary to avoid the plant, i.e., to cut the weeds at both ends of the plant, air can be introduced into the second air intake valve 222 through the bellows 12 and into the transverse fixed pipe 221 by opening the valve of the second air intake valve 222. As the air increases, pressure is applied to the second piston plate 225 towards the front end. At this time, the second return spring 227 is compressed, and the second piston plate 225 and the second piston rod 226 move forward accordingly, i.e., the mounting plate 228 moves forward. At this time, the two connecting rods 2211 are subjected to pressure. The force is applied and deflected, that is, the included angle between the two connecting rods 2211 increases, that is, the two second mounting seats 2210 move away from each other. At this time, under the guidance of the guide block 233 and the fixed guide rail 24, the two mowing components 23 can move away from each other, that is, the distance between the two mowing components 23 increases, so that the plants can pass through the two mowing components 23 to complete the weeding between plants. Conversely, releasing all the air inside the horizontal fixed tube 221 can make the two mowing components 23 move closer to each other and reduce their distance, so as to achieve fast mowing operation. Meanwhile, during mowing, the airflow inside the horizontal fixed pipe 221 can be kept constant, and the valve of the second exhaust valve 223 can be opened. At this time, air enters the horizontal fixed pipe 221 and is discharged through the second exhaust valve 223 at the bottom, and is sprayed out through the nozzle 224 and acts on the bottom of the device. At this time, the high-speed airflow can act on the ground after weeding and blow the weeds to both ends of the device, thus sweeping the weeds.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An all-terrain automatic lawn mower, comprising a base (1), characterized in that: A main air pump (10) is fixedly connected to the rear of the bottom end of the base (1). A three-way valve (11) is fixedly connected to the output end of the main air pump (10). An air supply pipe (13) is fixedly connected to the front end of the three-way valve (11). A bellows pipe (12) is fixedly connected to the bottom end of the three-way valve (11). A longitudinal fixed pipe (14) is fixedly connected to the bottom end of the base (1) near the front side. A first piston plate (17) is movably sleeved inside the longitudinal fixed pipe (14). The first piston plate (17) moves up and down relative to the longitudinal fixed pipe (14). A first piston rod (18) located inside the longitudinal fixed pipe (14) is fixedly connected to the bottom end of the first piston plate (17). The bottom end of the first piston rod (18) penetrates the bottom end of the longitudinal fixed pipe (14) and... A lifting frame (20) is fixedly connected below the longitudinal fixed pipe (14). A fixed guide rail (24) is fixedly connected to the left side of the bottom end of the lifting frame (20). Both sides of the fixed guide rail (24) are movably engaged with mowing components (23). A fixed sleeve (21) is fixedly connected to the right side of the bottom end of the lifting frame (20). An adjusting component (22) is fixedly engaged inside the fixed sleeve (21). The front end of the adjusting component (22) is connected to the two mowing components (23). A first air inlet valve (15) is fixedly connected to the right side of the longitudinal fixed pipe (14) near the top end. A first exhaust valve (16) is fixedly connected to the left side of the longitudinal fixed pipe (14) near the top end. The first air inlet valve (15) is connected to the air supply pipe (13).

2. The all-terrain automatic lawnmower according to claim 1, characterized in that: Obstacle avoidance sensors (2) are fixedly installed at equal distances on the front of the base (1). An ultra-wide-angle camera (4) is fixedly installed on the front of the base (1) near the top. A laser radar (3) is fixedly installed on the top of the base (1) near the front end. Distance sensors (7) are fixedly installed on both the left and right sides of the bottom of the base (1) near the front.

3. The all-terrain automatic lawnmower according to claim 1, characterized in that: The rear end of the base (1) is fixedly connected to a main power box (5), and the left and right sides of the bottom end of the base (1) are connected to power distribution boxes (6). The main power box (5) and the power distribution box (6) are connected by transmission. The two power distribution boxes (6) are connected by a suspension system (8) at the ends that are relatively far apart. The outer side of the suspension system (8) is fitted with a triangular track (9).

4. The all-terrain automatic lawnmower according to claim 1, characterized in that: The first intake valve (15) and the first exhaust valve (16) are both equipped with one-way valves, and the valves are respectively open to the inside of the longitudinal fixed pipe (14) and closed to the outside of the longitudinal fixed pipe (14), and open to the outside of the longitudinal fixed pipe (14) and closed to the inside of the longitudinal fixed pipe (14).

5. The all-terrain automatic lawnmower according to claim 1, characterized in that: The mowing assembly (23) includes a housing (231), and a rotating component (234) is provided at the rear end of the housing (231). A micro motor is built into the rotating component (234), and the output end of the micro motor is connected to the middle of the rear end of the housing (231). The housing (231) rotates relative to the rotating component (234). A guide block (233) is fixedly connected to the rear end of the rotating component (234). The guide block (233) is movably engaged with the fixed guide rail (24). The guide block (233) moves left and right relative to the fixed guide rail (24).

6. The all-terrain automatic lawnmower according to claim 5, characterized in that: The inner cavity of the housing (231) is movably connected to both the left and right sides of the drive shaft (235). A drive motor (232) is fixedly connected to one side of the top of the housing (231). The output end of the drive motor (232) is connected to the drive shaft (235) on one side. The outer sides of the two drive shafts (235) are provided with a synchronous belt (236) and the synchronous belt (236) is movably sleeved with the two drive shafts (235). A mowing chain (237) is fixedly sleeved on the outer side of the synchronous belt (236). The front end of the mowing chain (237) protrudes from the front end of the housing (231).

7. An all-terrain automatic lawnmower according to claim 6, characterized in that: The adjustment assembly (22) includes a horizontal fixing tube (221), the top end of the rear side of the horizontal fixing tube (221) is fixedly connected to a second air intake valve (222), the bottom end of the rear side of the horizontal fixing tube (221) is fixedly connected to a second exhaust valve (223), a second piston plate (225) is movably sleeved inside the horizontal fixing tube (221), and a second piston rod (226) located inside the horizontal fixing tube (221) is fixedly connected to one end of the second piston plate (225) near the mowing assembly (23).

8. An all-terrain automatic lawnmower according to claim 7, characterized in that: The end of the second piston rod (226) away from the second piston plate (225) passes through one end of the transverse fixing tube (221) and is fixedly connected to the mounting plate (228). The outer side of the second piston rod (226) is movably sleeved with a second return spring (227). The left and right ends of the second return spring (227) are respectively connected to one end of the inner cavity of the transverse fixing tube (221) and one end of the second piston plate (225).

9. An all-terrain automatic lawnmower according to claim 8, characterized in that: The mounting plate (228) is fixedly connected to the left and right sides of the end away from the second piston rod (226) with a first mounting seat (229). The end of the first mounting seat (229) away from the mounting plate (228) is movably connected to a connecting rod (2211) through a rotating shaft. The end of the connecting rod (2211) away from the first mounting seat (229) is movably connected to a second mounting seat (2210) through a rotating shaft. The end of the second mounting seat (2210) away from the connecting rod (2211) is connected to the guide block (233).

10. An all-terrain automatic lawnmower according to claim 7, characterized in that: The bottom end of the second exhaust valve (223) is fixedly connected to a nozzle (224). The second air inlet valve (222) and the second exhaust valve (223) are both equipped with one-way valves. The valves are respectively open to the inside of the horizontal fixed pipe (221) and closed to the outside of the horizontal fixed pipe (221), and open to the outside of the horizontal fixed pipe (221) and closed to the inside of the horizontal fixed pipe (221).

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