Smart mower
By using a gyroscope sensor and a camera radar sensor in conjunction with a controller, the height of the lawnmower blades is intelligently adjusted, solving the problem of blade damage in complex terrain. This enables automatic path planning and obstacle avoidance, improving the intelligence and stability of the lawnmower.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-14
AI Technical Summary
Existing lawnmowers have difficulty automatically adjusting the mowing height in complex environments, leading to blade damage and machine failure.
The machine uses a gyroscope sensor to detect the tilt angle of the body, and combines it with a camera and radar sensor. The controller controls the height adjustment component to automatically adjust the raising and lowering of the lawnmower blade. It is equipped with a lifting motor, lead screw and nut to achieve stable raising and lowering of the lawnmower blade, and uses a camera and radar sensor to plan the path to avoid obstacles.
This technology enables lawnmowers to automatically adjust their mowing height in complex terrain, preventing blade collisions and improving the reliability and intelligence of lawnmowers in complex environments.
Smart Images

Figure CN224482197U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of lawnmower technology, and specifically relates to an intelligent lawnmower. Background Technology
[0002] A lawnmower is a common type of garden machinery used to trim lawns. During the lawn trimming process, the rotating motion of the cutting device on the lawnmower drives the cutting blades to perform the cutting operation.
[0003] Most existing lawnmowers still use manual adjustment of the mowing height and do not have the function of automatically adjusting the blade height. When encountering potholes, the blades and the machine will be damaged. Therefore, most current lawnmowers are difficult to use in complex environments. Utility Model Content
[0004] In view of this, the purpose of this utility model is to address the shortcomings of the existing technology by providing an intelligent lawnmower that can automatically adjust the mowing height according to the terrain.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] The intelligent lawnmower includes a body and a mowing blade located below the body. The body is equipped with a mowing motor, a gyroscope sensor, a controller, and a height adjustment component. The mowing motor drives the mowing blade to rotate. The height adjustment component can drive the mowing motor and the mowing blade to move up and down relative to the body. The gyroscope sensor is used to detect the tilt angle signal of the body. The controller receives and responds to the tilt angle signal and controls the action of the height adjustment component.
[0007] To better realize this utility model, the above structure is further optimized by including a base and a lifting seat. The mowing motor is fixedly mounted on the lifting seat, the base is fixedly mounted on the machine body, and the lifting seat is vertically slidably mounted on the base. The height adjustment component drives the mowing motor and the mowing blade to move up and down relative to the machine body through the lifting seat.
[0008] To better realize this utility model, the above structure is further optimized. The height adjustment component includes a lifting motor, a lead screw, a nut, and a support base. The support base is fixedly mounted on the base, the lead screw is rotatably mounted on the support base, the lifting motor can drive the lead screw to rotate, the nut is fixedly mounted on the lifting base, and the lead screw and the nut are threadedly connected. The controller controls the operation of the lifting motor.
[0009] To better realize this utility model, the above structure is further optimized. The bottom of the machine body is provided with a drive wheel and a driven wheel. There are two drive wheels, each driven by a walking motor. The driven wheels are omnidirectional wheels.
[0010] To better realize this utility model, the above structure is further optimized. A camera and a radar sensor are provided at the front end of the machine body. The controller receives and responds to the signals transmitted by the camera and radar sensor and controls the movement of the two walking motors.
[0011] To better realize this utility model, the above structure is further optimized by providing a battery on the body.
[0012] To better realize this utility model, the above structure is further optimized by providing an emergency stop button on the body, which is used to disconnect the power supply from the battery.
[0013] To better realize this utility model, the above structure is further optimized. The lawn mower includes a turntable and a blade set on the outer edge of the turntable. The lawn mowing motor drives the turntable to rotate through a transmission shaft.
[0014] Compared with the prior art, this utility model has the following advantages:
[0015] The intelligent lawnmower provided by this utility model uses a gyroscope sensor to detect the tilt angle signal of the machine body, and then controls the mowing motor and the mowing blade to move up and down relative to the machine body according to the tilt angle. When encountering potholes, it automatically raises the bottom mowing blade to avoid collisions, and automatically lowers the mowing blade when the ground is flat. The lifting height can be automatically adjusted according to the actual site conditions. It is also equipped with a camera and radar sensor, which identify obstacles during the movement, and then realize automatic planning of mowing path and obstacle avoidance function. Compared with random boundary method and manual marking method, the path planning is more intelligent and reliable. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is one of the structural schematic diagrams of the intelligent lawnmower of this utility model;
[0018] Figure 2 This is the second structural schematic diagram of the intelligent lawnmower of this utility model;
[0019] Figure 3 This is a schematic diagram of the internal structure of the intelligent lawnmower of this utility model;
[0020] Figure 4This is a schematic diagram of the connection structure of the height adjustment component in this utility model.
[0021] In the picture:
[0022] 1-Main body, 2-Mowing motor, 3-Gyroscope sensor, 4-Controller, 5-Base, 6-Lifting seat, 7-Round cover, 8-Lead screw, 9-Nut, 10-Support base, 11-Drive wheel, 12-Driven wheel, 13-Walking motor, 14-Camera, 15-Radar sensor, 16-Battery, 17-Emergency stop button, 18-Turntable, 19-Blade, 20-Drive shaft. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] Please refer to Figures 1-4The intelligent lawnmower provided by this utility model includes a body 1 and a lawnmower blade disposed below the body 1. The body 1 is equipped with a lawnmower motor 2, a gyroscope sensor 3, a controller 4 and a height adjustment component. The lawnmower motor 2 drives the lawnmower blade to rotate. The lawnmower blade includes a turntable 18 and a blade 19 disposed on the outer edge of the turntable 18. The lawnmower motor 2 drives the turntable 18 to rotate through a transmission shaft 20. During the rotation, the blade 19 on the outer edge of the turntable 18 is used for cutting.
[0027] The height adjustment component drives the mowing motor 2 and the mowing blade to move up and down relative to the machine body 1. The gyroscope sensor 3 detects the tilt angle signal of the machine body 1 to determine the flatness of the ground. A large tilt angle indicates an uneven surface, requiring the mowing blade to be raised to avoid collisions; a small tilt angle indicates a relatively flat surface, allowing the mowing blade to be lowered. The controller 4 receives the tilt angle signal and controls the height adjustment component to adjust the height of the mowing blade. If a large, deep hole cannot be crossed even by adjusting the mowing blade height, the mower will issue an alarm signal, requiring manual intervention.
[0028] The machine body 1 is also equipped with a base 5 and a lifting seat 6. The mowing motor 2 is fixedly mounted on the lifting seat 6, and the base 5 is fixedly mounted on the machine body 1. The lifting seat 6 is vertically slidable on the base 5. The height adjustment component indirectly drives the mowing motor 2 and the mowing blade to move up and down relative to the machine body 1 through the lifting seat 6. Due to the presence of the lifting seat 6, not only is the mowing motor 2 provided with stable support, but the sliding of the lifting seat 6 within the base 5 is also smoother. The mowing motor 2 and the mowing blade will not shake during the lifting process, ensuring stability and reliability.
[0029] like Figure 3 and Figure 4 As shown, in this embodiment, the height adjustment assembly includes a lifting motor, a lead screw 8, a nut 9, and a support base 10. The lifting motor is located inside the round cover 7, the support base 10 is fixedly mounted on the base 5, and the lead screw 8 is rotatably mounted on the support base 10. The lifting motor can drive the lead screw 8 to rotate. The nut 9 is fixedly mounted on the lifting seat 6, and the lead screw 8 and the nut 9 are threadedly connected. The controller 4 controls the movement of the lifting motor. When the lifting motor rotates forward, the lead screw 8 drives the nut 9 to move upward, simultaneously driving the lifting seat 6, which is fixedly connected to the nut 9, to move upward, ultimately driving the lawnmower blade upward. When the lifting motor rotates in the reverse direction, it drives the lawnmower blade downward. This achieves the lifting and lowering movement of the lawnmower blade.
[0030] The bottom of the machine body 1 is equipped with two drive wheels 11 and two driven wheels 12. Each drive wheel 11 is driven independently by a walking motor 13. The driven wheels 12 are omnidirectional wheels. A camera 14 and a radar sensor 15 are located at the front of the machine body 1. The controller 4 receives and responds to signals transmitted by the camera 14 and radar sensor 15 and controls the movement of the two walking motors 13. Turning and U-turns are achieved by controlling the speed difference between the two drive wheels 11. During movement, the camera 14 and radar sensor 15 detect obstacles, and then automatically plan the mowing path and perform obstacle avoidance. Compared to random boundary methods and manual marking methods, path planning is more intelligent and reliable, enabling the lawnmower to operate normally in complex environments.
[0031] Furthermore, the machine body 1 is equipped with a battery 16 to provide power to the lawnmower. The machine body 1 is also equipped with an emergency stop button 17, which is used to disconnect the power supply of the battery 16. In case of emergency, pressing the emergency stop button 17 can interrupt the power supply and play a safety protection role.
[0032] During the mowing operation, the lawnmower uses camera 14 and radar sensor 15 to identify obstacles while moving, and then automatically plans the mowing path and avoids obstacles. During the mowing process, when the tilt angle detected by gyroscope sensor 3 is large, controller 4 controls the automatic raising of the mowing blade to avoid collisions. When the tilt angle detected by gyroscope sensor 3 becomes smaller, it means that the ground is relatively flat, and the mowing blade can be lowered to continue the mowing operation.
[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. An intelligent lawnmower, characterized by: The device includes a body and a mowing blade located below the body. The body is equipped with a mowing motor, a gyroscope sensor, a controller, and a height adjustment assembly. The mowing motor drives the mowing blade to rotate. The height adjustment assembly can drive the mowing motor and the mowing blade to move up and down relative to the body. The gyroscope sensor is used to detect the tilt angle signal of the body. The controller receives and responds to the tilt angle signal and controls the operation of the height adjustment assembly.
2. The intelligent lawnmower according to claim 1, characterized in that: It also includes a base and a lifting seat. The mowing motor is fixedly mounted on the lifting seat, the base is fixedly mounted on the machine body, and the lifting seat is vertically slidably mounted on the base. The height adjustment component drives the mowing motor and the mowing blade to move up and down relative to the machine body through the lifting seat.
3. The intelligent lawnmower according to claim 2, characterized in that: The height adjustment assembly includes a lifting motor, a lead screw, a nut, and a support base. The support base is fixedly mounted on the base, the lead screw is rotatably mounted on the support base, the lifting motor can drive the lead screw to rotate, the nut is fixedly mounted on the lifting base, and the lead screw is threadedly connected to the nut. The controller controls the operation of the lifting motor.
4. The intelligent lawnmower according to claim 1, characterized in that: The bottom of the machine body is equipped with driving wheels and driven wheels. There are two driving wheels, each driven by a separate walking motor. The driven wheels are omnidirectional wheels.
5. The intelligent lawnmower according to claim 4, characterized in that: The front end of the machine body is equipped with a camera and a radar sensor. The controller receives and responds to the signals transmitted by the camera and the radar sensor and controls the movement of the two walking motors.
6. The intelligent lawnmower according to any one of claims 1-5, characterized in that: The machine body is equipped with a battery.
7. The intelligent lawnmower according to claim 6, characterized in that: The device is also equipped with an emergency stop button, which is used to disconnect the power supply to the battery.
8. The intelligent lawnmower according to claim 1, characterized in that: The lawnmower includes a turntable and blades disposed on the outer edge of the turntable, and the lawnmower motor drives the turntable to rotate via a drive shaft.