Device for automatically trimming lawn

Abstract

The utility model discloses an automatic lawn trimming device, which belongs to the technical field of lawn trimming equipment, and comprises the following components: a rack which is of a cuboid frame structure and is internally provided with a bottom plate; the lawn trimming unit is arranged at the front end of the rack and comprises a weeding knife, a crane, a steering engine, a supporting mechanism and a baffle, and holes are formed in the baffle; the moving unit is arranged below the rack and comprises a single-chip microcomputer, wheels, a wheel motor and a battery of the wheel motor, and the single-chip microcomputer is electrically connected with the steering engine and the wheel motor; the grass foam absorbing unit comprises a grass foam conveying pipe, a grass absorbing barrel, a brushless dust motor and a battery of the brushless dust motor, one end of the grass foam conveying pipe is connected with the hole in the baffle, and the other end of the grass foam conveying pipe is connected with the grass absorbing barrel. The lawn trimmer is simple in structure, can efficiently and conveniently trim lawns, reduces environmental pollution and labor intensity, and is particularly suitable for families, schools, parks and other small places.

Description

Technical Field

[0001] This utility model belongs to the technical field of lawn mowing equipment, and relates to an automatic lawn mowing device, which is especially suitable for lawn maintenance in homes, schools and small commercial spaces. Background Technology

[0002] With the acceleration of urbanization and the increasing environmental awareness of people, lawn maintenance has become an important part of the daily management of homes, schools, parks, and other places. Traditional manual lawn mowing is not only time-consuming and labor-intensive, but also inefficient and cannot meet the needs of modern life. While traditional gasoline lawnmowers have higher power, they have problems such as high noise, heavy pollution, and complicated operation, making them particularly unsuitable for use in homes and small spaces.

[0003] In recent years, with the rapid development of technologies such as artificial intelligence, machine vision, and LiDAR, intelligent lawn mowing robots have gradually entered the market. However, existing products are mostly concentrated in the high-end market, are expensive, and have limited popularity. Furthermore, there are few lightweight products suitable for homes and small spaces. Therefore, developing a low-cost, easy-to-operate, and suitable automatic lawn mowing device for small spaces is of significant practical importance. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic lawn mowing device that can efficiently and conveniently mow lawns while reducing environmental pollution and labor intensity. This device is particularly suitable for small spaces such as homes, schools, and parks, meeting users' needs for convenience, safety, and environmental friendliness in lawn maintenance. This invention achieves its purpose through the following specific technical solutions.

[0005] An automatic lawn mowing device includes the following components:

[0006] Frame: The frame is a rectangular frame structure used to support the entire device. An internal base plate is located within the frame, which supports and secures other components.

[0007] Lawn mowing unit: The lawn mowing unit is located at the front of the frame and includes a weeding blade, a hoist, a servo motor, a support mechanism, and a baffle with perforations. The lawn is mowed by the high-speed rotation of the weeding blade. The servo motor allows the hoist to rotate back and forth at a certain angle. The hoist and support mechanism support the weeding blade and simultaneously enable its reciprocating rotation in the horizontal plane. The baffle is used to block the mowed grass clippings, preventing them from scattering.

[0008] Mobility Unit: The mobility unit is located below the frame and includes a microcontroller, wheels, wheel motors, and their batteries. The microcontroller is electrically connected to both the servo motor and the wheel motor. The microcontroller controls the wheel motor to move the wheels forward, backward, left, and right, ensuring that the device can mow the lawn according to a predetermined trajectory; simultaneously, the microcontroller controls the servo motor's reciprocating motion.

[0009] Grass Dropper Unit: The grass dropper unit includes a grass dropper delivery pipe, a suction bucket, a brushless dust motor, and its battery. One end of the grass dropper delivery pipe is connected to a hole in the baffle, and the other end is connected to the suction bucket. The brushless dust motor above the suction bucket is driven by the battery to achieve strong suction, drawing in grass droplets through the holes in the baffle. The grass droplets are then drawn into the suction bucket through the grass dropper delivery pipe.

[0010] In some specific implementations, the lawn mowing unit is equipped with spring ropes to share the supporting force of the crane on the lawn mower; it is also equipped with a flange to fix the servo motor and the crane so that they can rotate together.

[0011] In some specific implementations, the grass delivery pipe and the grass suction bucket are made of PVC plastic, which is lightweight and reliable.

[0012] In some specific implementations, the brushless dust motor includes a dust suction port with a filter screen to prevent grass dust from entering the motor.

[0013] In some specific implementations, a limit sensor is installed at the top of the straw suction bucket, and the device also includes a buzzer. The limit sensor and the buzzer are electrically connected to a microcontroller. When the straw suction bucket is full of straw, the limit sensor sends a signal to the microcontroller, which then controls the wheel motor and servo motor to stop. At the same time, the buzzer sounds an audible prompt to empty the straw.

[0014] In some specific embodiments, both the battery for the wheel motor and the battery for the brushless dust motor are rechargeable batteries. Preferably, the battery voltage for the wheel motor is 12V, and the battery voltage for the brushless dust motor is 24V.

[0015] This utility model has a simple structure and is powered by a battery. The device moves along a path planned by a microcontroller. The weeding blade rotates at high speed, and the servo motor drives the weeding blade to swing at a certain angle. The brushless dust motor runs to absorb grass dust, which can efficiently and conveniently mow lawns while reducing environmental pollution and labor intensity. It is especially suitable for small places such as homes, schools, and parks. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the bottom structure of this utility model.

[0018] Figure 3 This is a side view of the structure of this utility model.

[0019] Reference numerals: 1-Frame, 2-L-type fixed bracket, 3-Dust suction head, 4-L-type fixed motor bracket, 5-Wheel, 6-Servo motor, 7-Weed suction bucket, 8-Brushless dust motor, 9-Brushless dust motor battery, 10-Microcontroller, 11-Base plate, 12-Flange, 13-Crane rear arm, 14-Weeding blade, 15-L-type connecting pipe, 16-Baffle, 17-Wheel motor, 18-Weed conveying pipe, 19-Crane front arm, 20-Wheel motor battery. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0021] In the description of this utility model, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the accompanying drawings, are used only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance, quantity, or position.

[0022] In the description of this utility model, 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, an electrical connection, or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0023] An automatic lawn mowing device with a three-dimensional structure, such as Figure 1 As shown, the bottom structure is as follows Figure 2 As shown, the side structure is as follows Figure 3As shown, the device includes a frame 1, a lawn mowing unit, a moving unit, and a grass clipping absorption unit. The frame 1 is a rectangular frame structure used to support the entire device; a base plate 11 is located inside the frame 1, which supports and fixes other components. The lawn mowing unit is located at the front end of the frame 1 and includes a weeding blade 14, a crane, a servo motor 6, a support mechanism, a flange 12, and a baffle 16. The baffle 16 has perforations. The crane includes a front arm 19 and a rear arm 13. The support mechanism includes an L-shaped fixed bracket 2. The lawn is mowed by the high-speed rotation of the weeding blade 14. The servo motor 6 enables the crane to reciprocate at a certain angle. The crane and support mechanism support the weeding blade 14 and simultaneously enable its reciprocating rotation in the horizontal plane. The baffle 16 is used to block the mowed grass clippings and prevent them from scattering. The moving unit is located below the frame 1 and includes a microcontroller 10, wheels 5, wheel motors 17, and wheel motor batteries 20. Wheel motor 17 is fixed to the frame 1 via an L-shaped fixed motor bracket 4. The microcontroller 10 is electrically connected to both the servo motor 6 and the wheel motor 17. The microcontroller 10 controls the wheel motor 17 to move the wheels 5 forward, backward, left, and right, ensuring the device can mow the lawn according to a predetermined trajectory. Simultaneously, the microcontroller 10 controls the servo motor 6 to reciprocate. The grass dust absorption unit includes a grass dust delivery pipe 18, a grass suction bucket 7, a brushless dust motor 8, and a brushless dust motor battery 9. One end of the grass dust delivery pipe 18 has a suction head 3 connected to a hole in the baffle 16, and the other end is connected to the grass suction bucket 7 via an L-shaped connecting pipe 15.

[0024] The working process of an automatic lawn mowing device is as follows: The length and width of the lawn to be mowed are measured and the data is imported into a microcontroller 10. The device is placed in a corner of the lawn area to be mowed, and the start switch is pressed. The wheels 5 move according to the trajectory set by the microcontroller 10, while the servo motor 6 drives the crane's rear arm mechanism 13 and front arm 19 to rotate, causing the weeding blades 14 to mow the lawn along the predetermined trajectory. The brushless dust motor 8 starts, and the grass dust delivery pipe 18 transports the grass dust to the suction bucket 7 for collection. When the suction bucket is full, the lid is opened, and the grass dust is emptied.

[0025] Although the embodiments of this utility model have been described in detail above, those skilled in the art can make various modifications, substitutions, and variations to this utility model without departing from its principles and spirit. The scope of protection of this utility model is defined by the claims and their equivalents.

Claims

1. An automatic lawn mowing device, characterized in that, It includes the following components: Rack: The rack is a rectangular frame structure with a base plate inside; Lawn mowing unit: The lawn mowing unit is located at the front of the frame and includes a weeding blade, a crane, a servo motor, a support mechanism, and a baffle with perforations on the baffle; The mobile unit is located below the frame and includes a microcontroller, wheels, wheel motors and their batteries. The microcontroller is electrically connected to the servo motor and the wheel motor respectively. Grass dust absorption unit: The grass dust absorption unit includes a grass dust delivery pipe, a grass suction bucket, a brushless dust motor and its battery. One end of the grass dust delivery pipe is connected to the hole on the baffle and the other end is connected to the grass suction bucket. The brushless dust motor is electrically connected to a single-chip microcomputer.

2. The apparatus according to claim 1, characterized in that, The lawn mowing unit is equipped with spring ropes and flanges.

3. The apparatus according to claim 1, characterized in that, The grass delivery pipe and the grass suction bucket are made of PVC plastic.

4. The apparatus according to claim 1, characterized in that, The brushless dust motor includes a dust suction port, and a filter screen is provided at the dust suction port.

5. The apparatus according to claim 1, characterized in that, The top of the straw suction bucket is equipped with a limit sensor, and the device also includes a buzzer. The limit sensor and the buzzer are electrically connected to a single-chip microcomputer.

6. The apparatus according to claim 1, characterized in that, Both the battery for the wheel motor and the battery for the brushless dust motor are rechargeable batteries.

7. The apparatus according to claim 6, characterized in that, The battery voltage of the wheel motor is 12V, and the battery voltage of the brushless dust motor is 24V.

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