An intelligent lawn maintenance machine

Abstract

The application relates to an intelligent lawn maintenance machine which comprises a mower and a camera assembly, the camera assembly comprising a camera, a mounting block, a first driving motor, a first screw rod, a fixed radar transceiver and a movable radar transceiver, the mounting block being slidably connected to the mower along the linear motion direction of the mower, the camera being arranged on the mounting block, the camera lens facing the front of the mower, the length direction of the first screw rod being parallel to the sliding direction of the mounting block, the first screw rod being rotationally connected to the mower, the mounting block being slidably connected to the first screw rod, the first driving motor being used for driving the first screw rod to rotate, the movable radar transceiver being arranged on the mounting block, and the fixed radar transceiver being arranged on the mower. The application has the effect of improving the applicability of the mower to road conditions.

Description

Technical Field

[0001] The present application relates to the field of gardening, and in particular to an intelligent lawn maintenance machine. Background Art

[0002] Lawn maintenance machines generally refer to lawn mowers, which are mechanical tools used to trim lawns, vegetation, etc.

[0003] Currently, a Chinese utility model patent with publication number CN218998875U discloses a lawn mower device comprising a lawn mower and a camera. The camera is located at the front of the lawn mower in the direction of travel, and the camera includes a lens. A perpendicular line is drawn from the center of the lens to the lawn mower's travel surface, and the perpendicular line and the travel surface intersect at a first intersection point. A horizontal axis is established with the first intersection point as the origin and the direction of travel of the lawn mower along the travel surface as the positive direction. The central axis of the lens intersects the horizontal axis at a second intersection point, and the second intersection point is in the positive direction of the horizontal axis or coincides with the first intersection point. This allows the lawn mower to obtain an appropriate field of view for making appropriate operating decisions, and also reduces the size of the lawn mower and manufacturing costs.

[0004] Regarding the above-mentioned related technologies, the inventor believes that there are the following defects: since the lawns in gardens are large, and the ground of the lawns is not completely flat, there are raised or sunken areas on the lawns. Since the distance between the camera and the ground always remains unchanged, when the lawn mower is located on the raised or sunken ground, the camera may not be able to focus, and the camera cannot transmit a clear image to the lawn mower, and the lawn mower cannot cope with the complex lawn conditions. Summary of the Invention

[0005] In order to improve the applicability of a lawn mower to road conditions, the present application provides an intelligent lawn maintenance machine.

[0006] This application provides an intelligent lawn maintenance machine, which adopts the following technical solutions:

[0007] A smart lawn maintenance machine includes a lawn mower and a camera assembly, wherein the camera assembly includes a camera, a mounting block, a first drive motor, a first screw rod, a fixed radar transceiver, and a mobile radar transceiver. The mounting block is slidably connected to the lawn mower along the linear motion direction of the lawn mower. The camera is set on the mounting block, and the camera lens faces the front of the lawn mower. The length direction of the first screw rod is parallel to the sliding direction of the mounting block. The first screw rod is rotatably connected to the lawn mower. The mounting block is slidably connected to the first screw rod. The first drive motor is used to drive the first screw rod to rotate. The mobile radar transceiver is set on the mounting block, and the fixed radar transceiver is set on the lawn mower.

[0008] By adopting the above technical solution, when the lawn mower enters a raised area on the road, the signal reception time of both the mobile radar transceiver and the fixed radar transceiver increases, and the camera extends and increases its focal length to observe farther away. At this time, the first drive motor drives the first screw to rotate, moving the mounting block away from the lawn mower, extending the camera and increasing its focal length to facilitate camera focusing until the fixed radar transceiver's signal reception time returns to normal. When the lawn mower enters a flat surface again, the fixed radar transceiver's signal reception time returns to normal. Thereafter, the first drive motor drives the first screw to rotate, moving the mounting block toward the lawn mower, retracting the camera and shortening its focal length until the signal reception time of the mobile radar transceiver and the fixed radar transceiver is the same. Based on the relationship between the signal reception times of the fixed and mobile radar transceivers, the camera is adjusted, allowing the camera to focus under different terrain conditions, reducing the possibility of the camera failing to focus. The camera's signal return allows the lawn mower to promptly adapt to different terrain conditions, thereby improving its suitability for complex road conditions.

[0009] Optionally, the lawn mower is provided with a mowing frame, and the mowing frame is provided with a plurality of mowing components for mowing grass, and the plurality of mowing components are evenly distributed on the mowing frame, and the mowing components include a mowing disc, a plurality of mowing knives and a mowing motor, and the mowing disc is rotatably connected to an end of the mowing frame close to the ground, and the plurality of mowing knives are circumferentially distributed along the axis of the mowing disc, and the mowing knives are provided on the mowing disc, and the mowing motor is used to drive the mowing disc to rotate.

[0010] By adopting the above technical solution, when the mowing motor drives the mowing disc to rotate, the mowing disc drives the mowing blade to rotate along the mowing disc, and the mowing blade clears the weeds on the ground. The structure is simple and reasonable.

[0011] Optionally, the mowing assembly further comprises a plurality of blocking rods, one end of each blocking rod being arranged on the end of the mowing frame facing the ground, and the plurality of blocking rods being distributed axially along the axis of the mowing disc, and the distance from the blocking rod to the rotation axis of the mowing disc being greater than the distance from the farthest end of the mowing blade to the rotation axis of the mowing disc.

[0012] By adopting the above technical solution, the blocking rod reduces the direct contact between the stones embedded in the ground and the lawn mower, and is set to avoid obstacles, thereby reducing the situation where the lawn mower is directly scrapped due to contact with the stones.

[0013] Optionally, the mower is provided with an adjusting assembly for driving the mowing frame to move towards or away from the ground, the adjusting assembly comprises a second driving motor and a second screw rod, the length direction of the second screw rod is parallel to the direction in which the mower moves towards or away from the ground, the second screw rod is rotationally connected to the mower, and the second driving motor is configured to drive the second screw rod to rotate, and the mowing frame is threadedly connected to the second screw rod.

[0014] By adopting the above technical scheme, the mowing height of the mower can be adjusted according to the height of the weeds on the ground, when the weeds on the ground to be cleaned have a low height, the second driving motor is started to drive the second screw rod to rotate, and the second screw rod drives the mowing frame to move towards the ground, so that the mowing knife on the mowing frame is closer to the ground, and the mower is facilitated to clean the weeds with a low height.

[0015] Optionally, the mower is provided with two sets of walking assemblies for driving the mower to move, the two sets of walking assemblies are respectively arranged on the two sides of the mower, each walking assembly comprises a driving wheel, a first driven wheel, a transmission belt and a third driving motor, the third driving motor is arranged on the mower, the driving wheel is arranged on the output shaft of the third driving motor, the driving wheel and the first driven wheel are arranged along the linear movement direction of the mower, the first driven wheel is rotationally connected to the mower, the side walls of the driving wheel and the first driven wheel are respectively provided with a plurality of matching teeth, and the transmission belt is provided with a plurality of matching holes along the circumferential direction of the transmission belt, the transmission belt is sleeved on the driving wheel and the first driven wheel, and the matching holes are configured to match the matching teeth.

[0016] By adopting the above technical scheme, the mower needs to move while mowing during the mowing process, the walking assembly is used to move the mower on the lawn, the third driving motor drives the driving wheel to rotate, the driving wheel drives the transmission belt to move, the first driven wheel rotates under the drive of the transmission belt, the transmission belt moves relative to the ground to drive the mower to move, the driving wheel and the first driven wheel keep the transmission belt in a taut state, the matching teeth and the matching holes are matched to make the transmission efficiency of the transmission belt higher, and the applicability of the mower to the lawn is improved, the third driving motors on the two sides rotate at different speeds to realize the rotation of the mower in place, and the flexibility of the mower is improved.

[0017] Optionally, the walking assembly further comprises a second driven wheel, the second driven wheel is rotationally connected to the mower frame, the first driven wheel is located in front of the driving wheel in the linear motion direction of the mower, the second driven wheel is located on the side of the first driven wheel away from the driving wheel, and the transmission belt is sleeved on the driving wheel, the first driven wheel and the second driven wheel, and the transmission belt between the first driven wheel and the second driven wheel forms an acute angle with the ground.

[0018] By adopting the above technical scheme, the second driven wheel is sleeved on the transmission belt, the transmission belt between the first driven wheel and the second driven wheel forms an acute angle with the ground, so that the mower can better overcome obstacles and improve the ability of the mower to cope with different road conditions.

[0019] Optionally, the mower is provided with a comprehensive control assembly, the comprehensive control assembly comprises a battery pack for storing electric energy, a power supply, a first stepper driver, a second stepper driver, two rear drivers, the battery pack is arranged on the mower, the power supply is arranged on the mower, the battery pack is used to supply electric energy to the power supply, the first stepper driver, the second stepper driver and the two rear drivers are all arranged on the mower, the power supply controls the first stepper driver, the second stepper driver and the two rear drivers, the first drive motor, the second drive motor and the two third drive motors are all servo motors, the first stepper driver controls the first drive motor, the second stepper driver controls the second drive motor, the two rear drivers correspond to the two third drive motors one by one, and the rear driver controls the third drive motor.

[0020] By adopting the above technical scheme, the battery pack is used to supply energy to the power supply, so that the mower does not need to be connected to a power line for mowing work, the freedom and higher applicability of the mower are improved, the servo motor has the advantages of high precision, high speed and stability, the power supply controls the first drive motor through the first stepper driver, the first stepper driver can better control the contraction and extension of the camera, better precision adjustment of the camera is provided, the second stepper driver controls the lifting of the mower frame, the stable rotation of the second drive motor realizes the stable and rapid change of the height of the mower blade, the rear driver enables the third drive motor to stop and rotate in height in time, the flexibility of the mower is improved, and the functions of the servo motor are better exerted through the first stepper driver, the second stepper driver and the rear driver.

[0021] Optionally, the comprehensive control assembly further comprises a control switch, the control switch is arranged on the mower, and the control switch is used to control the opening and closing of the power supply.

[0022] By adopting the above technical scheme, the control switch is used for directly cutting off the power supply by the staff in an emergency, thereby reducing the situation that the mower falls into water.

[0023] Optionally, a plurality of speed regulating assemblies for changing the rotating speed of the mowing disc are arranged on the mowing frame, the plurality of speed regulating assemblies correspond to the mowing disc one by one, the speed regulating assembly comprises a first rotating disc, a second rotating disc, a first abutting ring, a second abutting ring and a control part, the mowing motor is located above the mowing disc, the mowing motor is arranged on the mowing frame, the first rotating disc is arranged on the output shaft of the mowing motor, the first abutting ring is arranged on the end face of the first rotating disc facing the mowing disc, the second rotating disc is located below the first rotating disc, the second rotating disc is arranged on the mowing disc, the second abutting ring is arranged on the end face of the second rotating disc facing the first rotating disc, the control part comprises a plurality of control balls, a plurality of control blocks, a plurality of sliding rods and a control ring, the control ring is slidably connected to the mowing frame in the direction of approaching or moving away from the ground, the control ring is sleeved on the first abutting ring, one end of the sliding rod is rotatably connected to the control ring, the sliding rods are distributed in the circumferential direction of the axis of the control ring, the control blocks correspond to the sliding rods one by one, the control blocks are slidably connected to the sliding rods in the length direction of the sliding rods, the control balls correspond to the control blocks one by one, the control balls are rotatably connected to the control blocks, the first abutting ring and the second abutting ring abut on the side wall of the control ball, and the mowing frame is provided with a driving member for driving the plurality of control rings to move in the same direction.

[0024] By adopting the above technical scheme, since the hardness of the leaves of the weeds is different from the hardness of the stems of the weeds, when the mowing frame is lowered to a low enough height for completely removing the weeds, the mowing knife cuts off the stems of the weeds, the mowing disc needs to provide better rotation to increase the cutting speed of the mowing knife, and the stems of the weeds can be more completely cut off; the staff drives the control ring away from the ground through the driving member, the control ring drives the sliding rod to rotate, the sliding rod drives the control block to rotate, the control block drives the control ball to rotate, the contact position of the control ball with the first abutting ring and the second abutting ring changes, since the control ring is away from the ground, the position of the first abutting ring abutting to the control ball becomes closer to the rotating axis, and the position of the second abutting ring abutting to the control ball becomes farther away from the rotating axis; the speed of the first rotating disc driven by the driving motor does not change, the speed of the control ball driven by the first rotating disc increases, the speed of the control ball increases, the speed of the second abutting ring increases, the speed of the second rotating disc driven by the second abutting ring increases, the rotating speed of the mowing disc driven by the second rotating disc increases, the rotating speed of the mowing disc is changed through the speed regulating assembly, and the applicability of the mower is improved.

[0025] Optionally, the driving member comprises a rolling wheel, a sliding block, a sliding spring and a plurality of connecting rods, the sliding block is connected to the mowing frame in a direction close to or away from the ground, the rolling wheel is rotationally connected to the sliding block, the sliding spring is used to keep the sliding block away from the mowing frame, and the plurality of connecting rods correspond to the plurality of control rings one by one, one end of the connecting rod is arranged on the control ring, and the other end of the connecting rod is arranged on the sliding block.

[0026] By adopting the technical scheme, when the mower needs to cut weeds, the resistance of the weeds to the mower gradually increases, the rolling wheel further improves the stability of the mower, and the situation that the mower deviates from the path is reduced, after the rolling wheel is abutted to the ground under the action of the mowing frame, with the continuous decrease of the height of the mowing frame, the sliding spring is compressed, the sliding block is moved away from the ground by the sliding spring, the connecting rod is moved together with the sliding block, the connecting rod drives the control ring to move away from the ground, the rotating speed of the mowing disc is increased by the speed regulating assembly, and the rotating speed of the mower blade is increased.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. The camera assembly facilitates the mower to identify different road surfaces and improve the applicability of the mower.

[0029] 2. The adjusting assembly is used to control the height of the mowing frame, so as to control the overall height of the lawn.

[0030] 3. The speed regulating assembly is used to change the rotating speed of the mowing disc, so as to improve the strength and efficiency of mowing. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a structural schematic view of embodiment 1 of the present application.

[0032] Figure 2 is a sectional view of the mower, used to show the positional relationship of the components of the mower.

[0033] Figure 3 is Figure 2 a structural schematic view of the adjusting assembly in embodiment 2.

[0034] Figure 4 is Figure 2 a bottom view of the mowing frame in embodiment 2, used to show the mowing assembly.

[0035] Figure 5 is Figure 1 a structural schematic view of the camera assembly in embodiment 2.

[0036] Figure 6 is Figure 2 a structural schematic view of the comprehensive control assembly in embodiment 2.

[0037] Figure 7 is a structural schematic diagram of the speed regulating assembly in embodiment 2.

[0038] Figure 8 is a structural schematic diagram of the driving member in embodiment 2.

[0039] Label: 1, mower; 11, base; 12, middle shell; 13, outer shell; 14, first accommodating cavity; 15, second accommodating cavity; 2, mowing frame; 3, camera assembly; 31, camera; 32, mounting block; 33, first driving motor; 34, first lead screw; 35, fixed radar transceiver; 36, movable radar transceiver; 4, mowing assembly; 41, mowing disc; 42, mowing knife; 43, mowing motor; 44, blocking rod; 45, protective cover; 46, third cavity; 5, adjusting assembly; 51, second driving motor; 52, second lead screw; 53, matching rod; 54, first synchronous wheel; 55, second synchronous wheel; 56, synchronous belt; 6, walking assembly; 61, driving wheel; 62, first driven wheel; 63, second driven wheel; 64, transmission belt; 641, matching hole; 65, third driving motor; 66, matching tooth; 7, comprehensive control assembly; 71, battery pack; 72, power supply; 73, first step motor driver; 74, second step motor driver; 75, rear driver; 76, control switch; 8, speed regulating assembly; 81, first rotating disc; 82, second rotating disc; 83, first abutting ring; 84, second abutting ring; 85, control part; 851, control ball; 852, control block; 853, sliding rod; 854, control ring; 855, guide rod; 856, sliding tube; 9, driving member; 91, rolling wheel; 92, sliding block; 921, driving block; 922, vertical rod; 923, mounting plate; 93, sliding spring; 94, connecting rod. DETAILED DESCRIPTION

[0040] The following will be described in detail below with reference to the accompanying Figures 1-8 The present application is further described in detail.

[0041] Embodiment 1

[0042] The embodiments of the present application disclose an intelligent lawn maintenance machine. Referring to Figure 1 and Figure 2The intelligent lawn maintenance machine comprises a mower 1, a mowing frame 2, a camera assembly 3, three mowing assemblies 4, an adjusting assembly 5, two sets of walking assemblies 6 and a comprehensive control assembly 7, the mowing frame 2 is slidably connected to the mower 1 in the vertical direction, the camera assembly 3 is arranged on the mower 1, the camera assembly 3 is used for inputting surrounding environment information to the mower 1, the mowing assembly 4 is arranged on the mowing frame 2, the mowing assembly 4 is used for cutting weeds, the adjusting assembly 5 is arranged on the mower 1, the adjusting assembly 5 is used for adjusting the height of the mowing frame 2, the two sets of walking assemblies 6 are respectively located on the two sides of the mower 1, the walking assembly 6 is used for moving the mower 1, and the comprehensive control assembly 7 is arranged on the mower 1, and the comprehensive control assembly 7 is used for controlling the camera assembly 3, the adjusting assembly 5 and the walking assembly 6.

[0043] With reference to Figure 2 The mower 1 comprises a base 11, a middle shell 12 and an outer shell 13, the middle shell 12 is located above the base 11, the lower end surface of the middle shell 12 is fixedly arranged on the upper end surface of the base 11, a first containing cavity 14 is formed between the middle shell 12 and the base 11, the outer shell 13 is located above the middle shell 12, the outer shell 13 is fixedly arranged on the middle shell 12, and a second containing cavity 15 is formed between the outer shell 13 and the middle shell 12.

[0044] With reference to Figure 1 and Figure 2The walking assembly 6 comprises a driving wheel 61, a first driven wheel 62, a second driven wheel 63, a transmission belt 64 and a third driving motor 65. The third driving motor 65 is horizontally arranged, and the length direction of the third driving motor 65 is parallel to the width direction of the base 11. The third driving motor 65 is located in the first accommodating cavity 14 and fixedly arranged on the base 11. The driving wheel 61 is vertically arranged and fixedly arranged on the output shaft of the third driving motor 65. The driving wheel 61 and the first driven wheel 62 are distributed along the length direction of the base 11. The rotation axis of the first driven wheel 62 is parallel to the rotation axis of the driving wheel 61. The first driven wheel 62 is rotationally connected to the side wall of the base 11. The diameter of the driving wheel 61 is larger than that of the first driven wheel 62. The second driven wheel 63 is located on the side of the first driven wheel 62 away from the driving wheel 61. The rotation axis of the second driven wheel 63 is parallel to the rotation axis of the first driven wheel 62. The height of the rotation axis of the second driven wheel 63 is higher than that of the first driven wheel 62. The diameter of the second driven wheel 63 is the same as that of the first driven wheel 62. The side wall of the driving wheel 61 is uniformly and circumferentially distributed with the matching teeth 66 along the axis of the driving wheel 61. The side wall of the first driven wheel 62 is uniformly and circumferentially distributed with the matching teeth 66 along the axis of the first driven wheel 62. The side wall of the second driven wheel 63 is uniformly and circumferentially distributed with the matching teeth 66 along the axis of the second driven wheel 63. The transmission belt 64 is sleeved on the driving wheel 61, the first driven wheel 62 and the second driven wheel 63. The transmission belt 64 is uniformly and circumferentially provided with a plurality of matching holes 641 for clamping the matching teeth 66. The included angle between the transmission belt 64 located between the first driven wheel 62 and the second driven wheel 63 and the ground plane is 35°.

[0045] Reference Figure 2 and Figure 3The mowing frame 2 is located at the front side of the mower 1 and is connected to the base 11 in a sliding manner in the vertical direction. The adjusting assembly 5 comprises a second driving motor 51, a second screw rod 52, two matching rods 53, a first synchronous wheel 54, a second synchronous wheel 55 and a synchronous belt 56. The second screw rod 52 is vertically arranged, and the lower end surface of the second screw rod 52 is rotationally connected to the base 11. The mowing frame 2 is threadedly connected to the second screw rod 52. The matching rods 53 are vertically arranged and are distributed along the width direction of the base 11. The two matching rods 53 are located at the two sides of the second screw rod 52 respectively. The lower end surface of the matching rod 53 is fixedly arranged on the base 11. The mowing frame 2 is slidably connected to the matching rod 53. The second driving motor 51 is vertically arranged and is located in the first accommodating cavity 14. The second driving motor 51 is fixedly arranged on the base 11. The first synchronous wheel 54 is horizontally arranged and is fixedly arranged on the output shaft of the second driving motor 51. The first synchronous wheel 54 and the second synchronous wheel 55 are distributed along the length direction of the base 11. The second synchronous wheel 55 is arranged on the upper end surface of the second screw rod 52. The synchronous belt 56 is sleeved on the first synchronous wheel 54 and the second synchronous wheel 55.

[0046] With reference to Figure 2 With reference to FIG. 4, the three mowing assemblies 4 are uniformly distributed on the mowing frame 2. The mowing assembly 4 comprises a mowing disc 41, four mowing knives 42, a mowing motor 43, a plurality of blocking rods 44 and a protective cover 45. The protective cover 45 is fixedly arranged on the upper end surface of the mowing frame 2, and a third cavity 46 is formed between the protective cover 45 and the mowing frame 2. The mowing motor 43 is vertically arranged and is located in the third cavity 46. The mowing motor 43 is fixedly arranged on the upper end surface of the mowing frame 2. The mowing disc 41 is horizontally arranged and is located on the lower end surface of the mowing frame 2. The mowing disc 41 is fixedly arranged on the output shaft of the mowing motor 43. The length direction of the mowing knife 42 is parallel to the radial direction of the mowing disc 41. The four mowing knives 42 are uniformly distributed in the circumferential direction along the axis of the mowing disc 41. The mowing knife 42 is fixedly arranged on the mowing disc 41. The farthest distance between the mowing knife 42 and the axis of the mowing disc 41 is greater than the diameter of the mowing disc 41. The blocking rod 44 is vertically arranged and is uniformly distributed in the circumferential direction along the rotation axis of the mowing disc 41. The distance between the blocking rod 44 and the axis of the mowing disc 41 is equal to the distance between the mowing knife 42 and the axis of the mowing disc 41. The upper end surface of the blocking rod 44 is fixedly arranged on the lower end surface of the mowing frame 2.

[0047] With reference to Figure 1 With Figure 5The camera assembly 3 comprises a camera 31, a mounting block 32, a first driving motor 33, a first screw rod 34, two fixed radar transceivers 35 and a mobile radar transceiver 36. The first driving motor 33 is located in the second accommodating cavity 15 and fixedly arranged on the middle shell 12. The length direction of the first screw rod 34 is parallel to the length direction of the base 11. One end of the first screw rod 34 is fixedly arranged on the output shaft of the first driving motor 33. The mounting block 32 is located in the second accommodating cavity 15 and slidably connected to the middle shell 12 along the length direction of the base 11. The mounting block 32 is threadedly connected to the first driving motor 33. The camera 31 is fixedly arranged on the side of the mounting block 32 away from the first driving motor 33. The two mobile radar transceivers 36 are respectively located on the two sides of the camera 31 and fixedly arranged on the mounting block 32. The two fixed radar transceivers 35 are respectively located on the two sides of the camera 31 and fixedly arranged on the outer shell 13.

[0048] With reference to Figure 2 and Figure 6 The comprehensive control assembly 7 comprises a battery pack 71, a power supply 72, a first step motor driver 73, a second step motor driver 74, two rear driving motors 75 and a control switch 76. The battery pack 71 is located in the first accommodating cavity 14 and fixedly arranged on the base 11. The power supply 72 is located in the first accommodating cavity 14 and fixedly arranged on the upper end face of the battery pack 71. The power supply 72 is electrically connected to the battery pack 71. The control switch 76 is fixedly arranged on the middle shell 12 and protrudes out of the upper end face of the outer shell 13. The control switch 76 is electrically connected to the power supply 72. The first step motor driver 73 is located in the first accommodating cavity 14 and fixedly arranged on the base 11. The first step motor driver 73 is electrically connected to the power supply 72. The first step motor driver 73 controls the first driving motor 33. The second step motor driver 74 is located in the first accommodating cavity 14 and fixedly arranged on the base 11. The second step motor driver 74 is electrically connected to the power supply 72. The first step motor driver 73 controls the second driving motor 51. The rear driving motor 75 is located in the first accommodating cavity 14 and fixedly arranged on the base 11. The rear driving motor 75 is electrically connected to the power supply 72. The two rear driving motors 75 correspond to the two third driving motors 65 one by one. The rear driving motor 75 controls the third driving motor 65. The first driving motor 33, the second driving motor 51 and the two third driving motors 65 are all servo motors.

[0049] The working principle of the intelligent lawn maintenance machine of the embodiment 1 is as follows: the worker turns on the control switch 76, the control switch 76 turns on the power supply 72, the battery pack 71 provides power supply for the power supply 72, the power supply 72 controls the first step motor driver 73, the second step motor driver 74 and the rear drive 75, the rear drive 75 of the mower 1 controls the rotation of the driving wheel 61, the driving wheel 61 drives the transmission belt 64 to move, the transmission belt 64 relatively slides with the lawn, the transmission belt 64 drives the mower 1 to move on the lawn, the two rear drives 75 relatively rotate in opposite directions, the two transmission belts 64 rotate in opposite directions, and the mower 1 rotates in place on the lawn; the worker can adjust the height of the mowing frame 2 according to the height of the lawn to be reserved, the second step motor driver 74 of the mower 1 controls the rotation of the second driving motor 51, the second driving motor 51 drives the rotation of the first synchronous wheel 54, the second synchronous wheel 55 drives the rotation of the second screw rod 52 through the synchronous belt 56, and the second screw rod 52 drives the up-down movement of the mowing frame 2; then the worker starts the mowing motor 43, the mowing motor 43 drives the rotation of the mowing disc 41, the mowing disc 41 drives the rotation of the mowing knife 42, and the mowing knife 42 cuts the plants on the lawn that exceed the height; at this time, the mower 1 transmits the picture back to the power supply 72 through the camera 31, the power supply 72 controls the first step motor driver 73, the second step motor driver 74 and the rear drive 75 in real time, when the mower 1 passes through the uneven road surface, the camera 31 cannot normally focus, the signal recovery time of the fixed radar transceiver 35 and the mobile radar transceiver 36 changes, the first step motor driver 73 controls the rotation of the first driving motor 33, the first driving motor 33 drives the rotation of the first screw rod 34, the first screw rod 34 drives the movement of the mounting block 32, the mounting block 32 drives the movement of the camera 31 and the fixed radar transceiver 35, until the transmission time of the fixed radar transceiver 35 is normal, the camera 31 realizes re-focusing, the mower 1 works normally, and the mower 1 adapts to different road conditions.

[0050] Embodiment 2

[0051] The difference between the embodiment and the embodiment 1 is that reference is made to Figure 7 and Figure 8The mowing frame 2 is provided with three speed regulating assemblies 8 and a driving member 9. The three speed regulating assemblies 8 correspond to the three mowing discs 41 in one-to-one manner. The speed regulating assembly 8 comprises a first rotating disc 81, a second rotating disc 82, a first abutting ring 83, a second abutting ring 84 and a control part 85. The first rotating disc 81 is horizontally arranged and is arranged on the output shaft of the mowing motor 43. The first abutting ring 83 is horizontally arranged and is coaxially arranged with the first rotating disc 81. The upper end surface of the first abutting ring 83 has a smaller diameter than the lower end surface of the first abutting ring 83. The upper end surface of the first abutting ring 83 is fixedly arranged on the side wall of the first rotating disc 81. The second rotating disc 82 is horizontally arranged and is located between the first rotating disc 81 and the mowing frame 2. The second rotating disc 82 is arranged on the mowing disc 41. The second abutting ring 84 is horizontally arranged. The lower end surface of the second abutting ring 84 has a smaller diameter than the upper end surface of the second abutting ring 84. The lower end surface of the second abutting ring 84 is fixedly arranged on the side wall of the second rotating disc 82. The control part 85 comprises four control balls 851, four control blocks 852, four sliding rods 853, a control ring 854, two guide rods 855 and four sliding tubes 856. The guide rods 855 are vertically arranged and are fixedly arranged on the upper end surface of the mowing frame 2. The two guide rods 855 are distributed in the circumferential direction along the axis of the first rotating disc 81. The control ring 854 is coaxially arranged with the first rotating disc 81 and is slidingly connected to the guide rods 855. The four sliding rods 853 are uniformly distributed in the circumferential direction along the axis of the control ring 854. One end of the sliding rod 853 is rotatably connected to the inner side of the control ring 854. The cross section of the sliding rod 853 is square. The four sliding tubes 856 correspond to the four sliding rods 853 in one-to-one manner. The length direction of the sliding tube 856 is parallel to the length direction of the sliding rod 853. The sliding tube 856 is sleeved on the sliding rod 853. The four control blocks 852 correspond to the four sliding tubes 856 in one-to-one manner. The control block 852 is fixedly arranged on the end of the sliding tube 856 away from the sliding rod 853. The four control balls 851 correspond to the four control blocks 852 in one-to-one manner. The control ball 851 is provided with a through hole penetrating through the center of the control ball 851. The control block 852 is provided with a rotating rod penetrating through the through hole. The control ball 851 is rotatably connected to the control block 852. The lower end surface of the first abutting ring 83 and the upper end surface of the second abutting ring 84 are both abutted on the side wall of the control ball 851.

[0052] Reference Figure 7 and Figure 8The driving member 9 comprises a rolling wheel 91, a sliding block 92, two sliding springs 93 and three connecting rods 94. The sliding block 92 comprises two driving blocks 921, two vertical rods 922 and a mounting plate 923. The rolling wheel 91 is located below the mowing frame 2, and the rotating axis of the rolling wheel 91 is parallel to the rotating axis of the second driven wheel 63. The two driving blocks 921 are distributed along the axis direction of the rolling wheel 91, and are located on the two sides of the rolling wheel 91 respectively. The rolling wheel 91 is rotationally connected to the driving blocks 921, and the driving blocks 921 are slidingly connected to the mowing frame 2 in the vertical direction. The two vertical rods 922 correspond to the two driving blocks 921 respectively, and the lower end surface of the vertical rod 922 is fixedly arranged on the upper end surface of the driving block 921. The two vertical rods 922 penetrate through the mowing frame 2. The two sliding springs 93 correspond to the two vertical rods 922 respectively, and the sliding spring 93 is sleeved on the vertical rod. The upper end surface of the sliding spring 93 is fixedly arranged on the lower end surface of the mowing frame 2, and the lower end surface of the sliding spring 93 is fixedly arranged on the upper end surface of the driving block 921. The mounting plate 923 is horizontally arranged, and is fixedly arranged on the upper end surface of the vertical rod 922. The three connecting rods 94 correspond to the three control rings 854 respectively, one end of the connecting rod 94 is fixedly arranged on the control ring 854, and the other end of the connecting rod 94 is fixedly arranged on the mounting plate 923.

[0053] When the worker needs to completely cut and remove the weeds on the lawn, the worker starts the second driving motor 51, the second driving motor 51 drives the second lead screw 52 to rotate, the second lead screw 52 drives the mowing frame 2 to move to the lowest position, at this time, the rolling wheel 91 abuts against the ground and gradually moves to the direction of the mowing frame 2, the rolling wheel 91 drives the driving block to move, the sliding spring 93 is compressed, the driving block 921 moves upward through the vertical rod 922, the vertical rod 922 drives the control ring 854 to move upward, the control ring 854 drives the sliding rod 853 to rotate, the sliding rod 853 drives the control block 852 to rotate, the control block 852 drives the control ball 851 to rotate, the distance between the first abutting ring 83 and the rotating rod decreases, the distance between the second abutting ring 84 and the rotating rod increases, the rotation ratio of the first abutting ring 83 and the second abutting ring 84 increases, the first abutting ring 83 drives the second abutting ring 84 to rotate at an increased speed through the control ball 851, at this time, the rotating speed of the mowing disc 41 increases, the rotating speed of the mowing knife 42 increases, and the stems of the weeds are better cut off.

[0054] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An intelligent lawn maintenance machine, characterized by: The invention comprises a lawn mower (1) and a camera assembly (3), wherein the camera assembly (3) comprises a camera (31), a mounting block (32), a first drive motor (33), a first screw rod (34), a fixed radar transceiver (35) and a mobile radar transceiver (36), wherein the mounting block (32) is connected to the lawn mower (1) in a sliding manner along the linear motion direction of the lawn mower (1), the camera (31) is arranged on the mounting block (32), the lens of the camera (31) faces the front of the lawn mower (1), the length direction of the first screw rod (34) is parallel to the sliding direction of the mounting block (32), the first screw rod (34) is rotatably connected to the lawn mower (1), the mounting block (32) is connected to the first screw rod (34) in a sliding manner, and the first drive motor (33) is used to drive the first screw rod (34) to rotate. A thread rod (34) rotates, the mobile radar transceiver (36) is arranged on the mounting block (32), and the fixed radar transceiver (35) is arranged on the lawn mower (1); the lawn mower (1) is provided with a mowing frame (2), and the mowing frame (2) is provided with a plurality of mowing components (4) for mowing grass, and the plurality of mowing components (4) are evenly distributed on the mowing frame (2), and the mowing component (4) includes a mowing disc (41), a plurality of mowing knives (42) and a mowing motor (43), the mowing disc (41) is rotatably connected to an end of the mowing frame (2) close to the ground, and the plurality of mowing knives (42) are circumferentially distributed along the axis of the mowing disc (41), and the mowing knives (42) are arranged on the mowing disc (41), and the mowing motor (43) is used to drive the mowing disc (41) to rotate;The mowing frame (2) is provided with a plurality of speed regulating components (8) for changing the rotation speed of the mowing disc (41), and the plurality of speed regulating components (8) correspond to the mowing disc (41) one by one. The speed regulating components (8) include a first rotating disc (81), a second rotating disc (82), a first abutting ring (83), a second abutting ring (84) and a control unit (85). The mowing motor (43) is located above the mowing disc (41). The mowing motor (43) is provided on the mowing frame (2). The first rotating disc (81) The first contact ring (83) is arranged on the output shaft of the mowing motor (43), the first contact ring (83) is arranged on the end surface of the first rotating disk (81) facing the mowing disk (41), the second rotating disk (82) is located below the first rotating disk (81), the second rotating disk (82) is arranged on the mowing disk (41), the second contact ring (84) is arranged on the end surface of the second rotating disk (82) facing the first rotating disk (81), the control part (85) includes a plurality of control balls (851), a plurality of control A control block (852), a plurality of sliding rods (853) and a control ring (854), wherein the control ring (854) is connected to the mowing frame (2) by sliding in a direction close to or away from the ground, the control ring (854) is sleeved on the first abutting ring (83), one end of the sliding rod (853) is rotatably connected to the control ring (854), the sliding rods (853) are distributed circumferentially along the axis of the control ring (854), and the plurality of control blocks (852) and the plurality of sliding rods (853) correspond one to one. The control block (852) is connected to the sliding rod (853) by sliding along the length direction of the sliding rod (853), a plurality of the control balls (851) correspond to a plurality of the control blocks (852) in a one-to-one manner, the control balls (851) are rotatably connected to the control blocks (852), the first abutting ring (83) and the second abutting ring (84) both abut against the side wall of the control ball (851), and the mowing frame (2) is provided with a driving member (9) that drives the plurality of control rings (854) to move in the same direction.

2. The intelligent lawn maintenance machine according to claim 1, characterized in that: The mowing assembly (4) further comprises a plurality of blocking rods (44), one end of each blocking rod (44) being arranged on an end of the mowing frame (2) facing the ground, the plurality of blocking rods (44) being distributed axially along the axis of the mowing disc (41), and the distance between the blocking rods (44) and the rotation axis of the mowing disc (41) being greater than the distance between the farthest end of the mowing blade (42) and the rotation axis of the mowing disc (41).

3. The intelligent lawn maintenance machine according to claim 1, characterized in that: The lawn mower (1) is provided with an adjustment component (5) for driving the mowing frame (2) to move in a direction close to or away from the ground. The adjustment component (5) comprises a second drive motor (51) and a second screw rod (52). The length direction of the second screw rod (52) is parallel to the direction in which the lawn mower (1) moves close to or away from the ground. The second screw rod (52) is rotatably connected to the lawn mower (1). The second drive motor (51) is used to drive the second screw rod (52) to rotate. The mowing frame (2) is threadedly connected to the second screw rod (52).

4. The intelligent lawn maintenance machine according to claim 3, characterized in that: The lawn mower (1) is provided with two groups of walking components (6) for driving the lawn mower (1) to move. The two groups of walking components (6) are respectively located on both sides of the lawn mower (1). The walking components (6) include a driving wheel (61), a first driven wheel (62), a transmission belt (64) and a third driving motor (65). The third driving motor (65) is provided on the lawn mower (1). The driving wheel (61) is provided on the output shaft of the third driving motor (65). The driving wheel (61) and the first driven wheel (62) are connected to each other. 2) distributed along the linear motion direction of the lawn mower (1), the first driven wheel (62) is rotatably connected to the lawn mower (1), a plurality of matching teeth (66) are provided on the side walls of the driving wheel (61) and the first driven wheel (62), a plurality of matching holes (641) are opened on the transmission belt (64) along the circumference of the transmission belt (64), the transmission belt (64) is sleeved on the driving wheel (61) and the first driven wheel (62), and the matching holes (641) are used to match with the matching teeth (66).

5. The intelligent lawn maintenance machine according to claim 4, characterized in that: The walking assembly (6) further comprises a second driven wheel (63), the second driven wheel (63) being rotatably connected to the frame of the lawn mower (1), the first driven wheel (62) being located in front of the driving wheel (61) along the linear motion of the lawn mower (1), the second driven wheel (63) being located on a side of the first driven wheel (62) away from the driving wheel (61), the transmission belt (64) being sleeved on the driving wheel (61), the first driven wheel (62) and the second driven wheel (63), and the transmission belt (64) between the first driven wheel (62) and the second driven wheel (63) forming an acute angle with the ground plane.

6. The intelligent lawn maintenance machine according to claim 4, characterized in that: The lawn mower (1) is provided with an integrated control component (7), the integrated control component (7) comprising a battery pack (71) for storing electric energy, a power supply (72), a first stepper driver (73), a second stepper driver (74), and two rear drivers (75). The battery pack (71) is provided on the lawn mower (1), the power supply (72) is provided on the lawn mower (1), the battery pack (71) is used to transmit electric energy to the power supply (72), the first stepper driver (73), the second stepper driver (74), and the two rear drivers (75) are all provided on the lawn mower. On the machine (1), the power supply (72) controls the first stepper driver (73), the second stepper driver (74) and the two rear drivers (75); the first drive motor (33), the second drive motor (51) and the two third drive motors (65) are all servo motors; the first stepper driver (73) controls the first drive motor (33); the second stepper driver (74) controls the second drive motor (51); the two rear drivers (75) correspond one to one with the two third drive motors (65); and the rear drivers (75) control the third drive motors (65).

7. The intelligent lawn maintenance machine according to claim 6, characterized in that: The integrated control component (7) further comprises a control switch (76), wherein the control switch (76) is provided on the lawn mower (1), and the control switch (76) is used to control the power supply (72) to be turned on or off.

8. The intelligent lawn maintenance machine according to claim 1, characterized in that: The driving member (9) includes a rolling wheel (91), a sliding block (92), a sliding spring (93) and a plurality of connecting rods (94). The sliding block (92) is connected to the mowing frame (2) by sliding in a direction close to or away from the ground. The rolling wheel (91) is rotatably connected to the sliding block (92). The sliding spring (93) is used to keep the sliding block (92) away from the mowing frame (2). The plurality of connecting rods (94) correspond to the plurality of control rings (854) in a one-to-one manner. One end of the connecting rod (94) is arranged on the control ring (854), and the other end of the connecting rod (94) is arranged on the sliding block (92).

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