Automatic lawnmower for embankment slopes

Abstract

The utility model provides an automatic mower of embankment protection slope section relates to mower facility technical field, including machine body shell, machine body shell both ends are equipped with fixed hole, machine body shell is equipped with fixed slip ring through fixed hole, machine body shell inside rotation is connected with drive shaft, drive shaft side end is equipped with driven gear, machine body shell side end rotation is connected with drive gear, drive gear other end passes through motor drive, driven gear and drive gear interlock, fixed slip ring side end is equipped with sliding square groove, fixed slip ring is equipped with sliding block through sliding square groove sliding connection, sliding block side end is equipped with counterweight stick, counterweight stick slides in sliding square groove inside, drive shaft surface is equipped with the sliding slot, sliding block other end slides along the sliding slot inside, the machine body shell upper end is connected with sealing plate, the utility model discloses a drive shaft, driven gear, drive gear constitute transmission system, thereby according to the automatic adjustment counterweight position of ramp inclination, balance gravity center.

Description

Technical Field

[0001] This utility model relates to the field of lawn mower facilities technology, and in particular to an automatic lawn mower for embankment protection slopes. Background Technology

[0002] As an important water conservancy project in my country, dikes play a crucial role in flood control, drought relief, and water resource allocation. my country possesses a vast dike system, with its total length ranking among the world's longest. However, the daily maintenance of dikes faces numerous challenges, among which the mowing of slope turf is particularly prominent.

[0003] Against this social backdrop, traditional manual lawn mowing is inefficient, covering only about 0.8 kilometers per day on average, requiring multiple people and involving high labor intensity. Furthermore, manual lawn mowing poses significant safety risks in dangerous areas such as steep slopes and high embankments, with reports of injuries and fatalities due to slips and falls every year. With an aging population and a growing labor shortage, the age structure of frontline maintenance workers is unbalanced, and a significant manpower gap is expected in the coming years. Therefore, the market currently sees the proliferation of municipal ride-on lawnmowers and modified agricultural tracked tractors as mowing equipment.

[0004] Under current technological conditions, automatic and semi-automatic grass mowing equipment modified from tracked tractors are mainly designed for flat ground in grass removal operations on slopes such as embankments and canals. They lack a design for lowering the center of gravity and compensating for lateral offset on slopes. When applied to sloping slopes such as embankment protection slopes, the machine is prone to sideslip and overturning due to the force of gravity, resulting in poor operational stability and significant safety hazards. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic lawn mower for embankment protection slopes.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an automatic lawn mower for embankment slope protection, comprising a machine body shell, with a sealing plate snapped onto the upper end of the machine body shell, characterized in that: fixing holes are provided at both ends of the machine body shell, a fixing slip ring is fixed to the machine body shell through the fixing holes, a drive shaft is rotatably connected inside the machine body shell, a driven gear is fixed to one side of the drive shaft, a drive gear is rotatably connected to one side of the machine body shell, the other end of the drive gear is driven by a motor, the driven gear meshes with the drive gear, a sliding square groove is provided on one side of the fixing slip ring, a sliding block is slidably connected to the fixing slip ring through the sliding square groove, a counterweight is fixed to one side of the sliding block, the counterweight slides inside the sliding square groove, a sliding groove is provided on the surface of the drive shaft, and the other end of the sliding block slides along the inside of the sliding groove.

[0007] Preferably, the fixed slip ring has air-sealing sleeves fixed at both ends, the bottom of the air-sealing sleeves is connected to a connecting sleeve, a movable piston rod is slidably connected inside the connecting sleeve, a square sliding groove is opened at the bottom of the machine body shell, a fixing block is fixed at the bottom of the movable piston rod, the fixing block is slidably connected to the bottom of the machine body shell, a brush plate is fixed at the bottom of the fixing block, brush bristles are fixed in an array at the bottom of the brush plate, and a cutting blade is fixed at the bottom of the machine body shell.

[0008] Preferably, a slide rail bracket is detachably connected inside the outer shell of the machine body. A fixing ring is fixed inside the slide rail bracket. A pressure plate is fixed inside the fixing ring. A fixing screw is fixed inside the outer shell of the machine body. A fixing nut is fixed on the surface of the fixing screw. A washer is provided between the fixing nut and the pressure plate. An eight-claw spring sheet is slidably connected inside the pressure plate. The eight-claw spring sheet is slidably connected between the pressure plate and the outer shell of the machine body.

[0009] Preferably, a night searchlight is electrically connected to the front end of the outer shell of the machine body, and a light-transmitting plate is fixed to the front end of the night searchlight.

[0010] Preferably, a signal baseline is fixed at the upper end of the outer shell of the machine body, and multiple signal baselines slide relative to each other.

[0011] Preferably, the two front wheels of the casing are independent drive wheels, each driven by a separate motor.

[0012] Beneficial effects:

[0013] 1. Under current technological conditions, automatic and semi-automatic lawn mowing equipment modified from tracked tractors, used for weeding operations on slopes such as embankments and canals, primarily employs chassis structures and center-of-gravity designs geared towards flat ground. They lack designs for lowering the center of gravity and compensating for lateral offset on slopes. When applied to sloping surfaces like embankments, the machine is prone to sideslip and overturning due to the force of gravity, resulting in poor operational stability and significant safety hazards. To address this issue, this invention utilizes a transmission system consisting of a drive shaft, driven gear, and drive gear. This system rotates the drive shaft, which has a groove. A sliding block, connected to the drive shaft via the groove, moves the counterweight radially under the constraint of a sliding square groove in a fixed slip ring. This structure converts the rotational motion of the drive shaft into the linear motion of the counterweight, automatically adjusting the counterweight position according to the slope's inclination to balance the center of gravity. This achieves dynamic center-of-gravity adjustment during slope operations, significantly improving lateral stability and effectively reducing sideslip and overturning.

[0014] 2. In existing technologies, once a traditional automatic lawnmower is started, the strong and continuous mechanical vibration generated by the high-speed rotation of its built-in motor and blades is easily transmitted to each connection node through the rigid structure of the machine body. Due to the rigid fastening characteristics of conventional standard bolts, this vibration energy often forms a micro-amplitude high-frequency relative slippage inside the threaded pair, thus inducing a typical "fretting wear" phenomenon. With the accumulation of operating cycles, the original anti-loosening coating on the thread surface is rapidly destroyed, and oxidation corrosion and material erosion begin to appear on the contact surface. The effective preload decreases exponentially, and eventually, the bolt wears out without any resistance. If the rotation becomes loose under warning signs, the overall reliability curve of the machine will plummet, maintenance costs will increase exponentially, and in extreme cases, personal injury accidents may even occur due to flying parts. This is achieved through an elastic suspension system composed of slide rail brackets, fixed pressure rings, pressure plates, fixed screws, fixed nuts, and eight-claw spring plates. The eight-claw spring plates slide between the pressure plates and the machine body shell, and use their elastic deformation to absorb and buffer vibrations and impacts from all directions, providing effective buffering and shock absorption protection for the internal engine of the equipment, reducing operating vibration and impact, and extending the service life of the equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the bottom structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal airway structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the adjustment structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the counterweight structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the reinforcement structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the sliding sleeve structure of this utility model;

[0022] Figure 8 This is a schematic diagram of the rotating shaft structure of this utility model;

[0023] Figure 9 This is a schematic diagram of the internal structure of this utility model.

[0024] Legend:

[0025] 1. Machine casing; 101. Sealing plate; 2. Fixed slip ring; 201. Drive shaft; 202. Driven gear; 203. Drive gear; 204. Sliding block; 205. Slide groove; 206. Counterweight bar; 207. Sliding square groove; 3. Slide rail bracket; 301. Fixed pressure ring; 302. Pressure plate; 303. Fixed screw; 304. Fixed nut; 305. Octopus spring plate; 4. Night searchlight; 5. Signal baseline; 6. Air-sealing sleeve; 601. Connecting sleeve; 602. Moving piston rod; 603. Fixed block; 604. Brush plate; 605. Brush bristles; 606. Cutting blade. Detailed Implementation

[0026] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0027] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific implementation examples:

[0029] Reference Figure 1-9An automatic lawn mower for embankment slope protection includes a casing 1, with a sealing plate 101 snapped onto the upper end of the casing 1. Fixing holes are provided at both ends of the casing 1, through which a fixed slip ring 2 is fixed. A drive shaft 201 is rotatably connected inside the casing 1. A driven gear 202 is fixed to one side of the drive shaft 201, and a drive gear 203 is rotatably connected to one side of the casing 1. The other end of the drive gear 203 is driven by a motor. The driven gear 202 meshes with the drive gear 203. A sliding groove 207 is provided on one side of the fixed slip ring 2, through which a sliding block 204 is slidably connected. A counterweight 206 is fixed to one side of the sliding block 204, and the counterweight 206 slides inside the sliding groove 207. A groove 205 is provided on the surface of the drive shaft 201, and the other end of the sliding block 204 slides along the groove 205. 05 Internal sliding, the upper end of the outer shell 1 is fitted with a sealing plate 101. Under the existing technical conditions, the automatic and semi-automatic grass cutting equipment modified from tracked tractors is mainly designed for flat ground in grass cutting operations on slopes such as embankments and canals. It does not have a design for lowering the center of gravity and compensating for lateral offset on slopes. When applied to sloping slopes such as embankment protection slopes, the machine body is prone to side slipping and overturning due to the force of gravity, resulting in poor operational stability and great safety hazards. To address this problem, this utility model uses a transmission system consisting of a drive shaft 201, a driven gear 202, and a drive gear 203 to drive the drive shaft 201 with a sliding groove 205 to rotate. The sliding block 204, which cooperates with the drive shaft 201 through the sliding groove 205, can drive the counterweight bar 206 to move radially under the constraint of the sliding square groove 207 of the fixed slip ring 2. This structure converts the rotational motion of the drive shaft 201 into the linear motion of the counterweight bar 206, thereby automatically adjusting the counterweight position according to the slope inclination and balancing the center of gravity. This achieves dynamic center of gravity adjustment of the equipment when operating on slopes, significantly improving lateral stability and effectively reducing sideslip and overturning.

[0030] A fixed slip ring 2 has air-sealing sleeves 6 fixed at both ends. A connecting sleeve 601 is connected to the bottom of the air-sealing sleeve 6. A movable piston rod 602 is slidably connected inside the connecting sleeve 601. A square groove 205 is provided at the bottom of the outer casing 1. A fixing block 603 is fixed to the bottom of the movable piston rod 602. The fixing block 603 is slidably connected to the bottom of the outer casing 1. A brush plate 604 is fixed to the bottom of the fixing block 603. Brush bristles 605 are arrayed and fixed to the bottom of the brush plate 604. A cutting blade 606 is fixed to the bottom of the outer casing 1. A pneumatic or linkage mechanism is formed by the air-sealing sleeves 6, connecting sleeves 601, and movable piston rod 602 fixed at both ends of the fixed slip ring 2. When the fixed slip ring 2 deforms or shifts due to the movement of the counterweight... When the gas inside the closed sleeve 6 is driven, it pushes the moving piston rod 602, which in turn drives the brush plate 604 and brush bristles 605 at the bottom of the fixed block 603 to perform reciprocating sweeping motion, realizing the linkage between mowing and cleaning functions. It can simultaneously clean up the grass clippings left after cutting, improve the cleanliness and aesthetics of the slope surface, and may reduce the blade blockage caused by weeds. The machine body shell 1 is detachably connected to the slide rail bracket 3. The slide rail bracket 3 is fixed with a fixing ring 301 inside. The fixing ring 301 is fixed with a pressing plate 302 inside. The machine body shell 1 is fixed with a fixing screw 303. The fixing screw 303 is fixed with a fixing nut 304 on its surface. A gasket is provided between the fixing nut 304 and the pressing plate 302. 02 An internal sliding connection is provided with an eight-claw spring sheet 305, which slides between the pressure plate 302 and the outer shell 1. This is achieved through an elastic suspension system composed of a slide rail bracket 3, a fixing ring 301, the pressure plate 302, a fixing screw 303, a fixing nut 304, and the eight-claw spring sheet 305. The eight-claw spring sheet 305, sliding between the pressure plate 302 and the outer shell 1, absorbs and buffers vibrations and impacts from all directions through its elastic deformation, providing effective buffering and shock absorption protection for the internal engine, reducing operating vibration and impact, and extending the service life of the equipment. A night searchlight 4 is electrically connected to the front end of the outer shell 1, and a light-transmitting plate is fixed to the front end of the night searchlight 4. By electrically connecting a night searchlight 4 to the front end of the housing 1 and setting a light-transmitting plate to protect the light body and optimize lighting, the equipment's ability to operate at night or in low-light environments is expanded, improving work safety and continuity. A signal baseline 5 is fixed to the upper end of the housing 1, and multiple signal baselines 5 slide against each other. This structure allows the equipment to retract the signal baselines 5 into the equipment when idle, thereby preventing the signal baselines 5 from being damaged by external impacts. The two front wheels of the housing 1 are independent drive wheels, each driven by a separate motor. This is achieved by setting the two front wheels of the housing 1 to be drive wheels driven by separate motors.The dual-motor independent drive enables differential steering, eliminating the need for a traditional steering mechanism and resulting in a small turning radius. At the same time, the dual-wheel drive provides stronger driving force to overcome slope resistance, thereby enabling the equipment to have flexible steering capabilities and strong slope traction, allowing it to better adapt to the complex terrain of embankment protection slope sections.

[0031] The working principle of this utility model is as follows: When the user uses this automatic lawnmower for slope protection, the harvester moves along the slope. At the same time, the user starts the motor, which drives the drive gear 203 to rotate. Through the driven gear 202 that meshes with the drive gear 203, the drive shaft 201 is driven to rotate. The surface of the drive shaft 201 is provided with a specific groove 205. One end of the sliding block 204 is engaged with the drive shaft 201 through the groove 205. When the drive shaft 201 rotates, the contour of the groove 205 will force the sliding block 204 to produce a relative sliding displacement inside it. A counterweight 206 is fixed on the other side of the sliding block 204. The entire assembly of the sliding block 204 and the counterweight 206 is constrained within the sliding groove 207 of a fixed slip ring 2. Guided by the sliding groove 207, it performs radial linear motion. When the lawnmower operates on a cross slope, the vehicle body tilts downhill, causing the counterweight 206 to move uphill. This uphill movement of the counterweight 206 is equivalent to shifting part of the equipment's center of gravity to the uphill side. This action generates a stabilizing torque opposite to the overturning moment, effectively pulling the vehicle's center of gravity back to a stable position. The area is designed to greatly reduce the risk of side slip and overturning, ensuring the stable operation of the equipment on the slope. When the fixed slip ring 2 deforms or shifts due to the movement of the counterweight, it will drive the gas in the air-sealed sleeve 6 to push the moving piston rod 602, which in turn drives the brush plate 604 and brush bristles 605 at the bottom of the fixed block 603 to perform reciprocating sweeping motion. This realizes the linkage between the grass cutting and cleaning functions, which can simultaneously clean up the grass clippings left after cutting, improve the cleanliness and aesthetics of the slope surface, and may reduce the blade from being clogged by weeds.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic lawn mower for embankment slope protection, comprising a machine body shell (1), wherein a sealing plate (101) is snapped onto the upper end of the machine body shell (1), characterized in that: The outer casing (1) has fixing holes at both ends. A fixing slip ring (2) is fixed to the outer casing (1) through these fixing holes. A drive shaft (201) is rotatably connected inside the outer casing (1). A driven gear (202) is fixed to one side of the drive shaft (201). A drive gear (203) is rotatably connected to one side of the outer casing (1). The other end of the drive gear (203) is driven by a motor. The driven gear (202) and the drive gear (203) are connected... The fixed slip ring (2) is provided with a sliding square groove (207) on its side end. The fixed slip ring (2) is slidably connected to a sliding block (204) through the sliding square groove (207). A counterweight (206) is fixed to the side end of the sliding block (204). The counterweight (206) slides inside the sliding square groove (207). A sliding groove (205) is provided on the surface of the drive shaft (201). The other end of the sliding block (204) slides along the inside of the sliding groove (205).

2. The automatic lawnmower for embankment protection slopes according to claim 1, characterized in that: The fixed slip ring (2) has air-sealing sleeves (6) fixed at both ends. The bottom of the air-sealing sleeve (6) is connected to a connecting sleeve (601). A movable piston rod (602) is slidably connected inside the connecting sleeve (601). A square sliding groove is opened at the bottom of the machine body shell (1). A fixing block (603) is fixed at the bottom of the movable piston rod (602). The fixing block (603) is slidably connected to the bottom of the machine body shell (1). A brush plate (604) is fixed at the bottom of the fixing block (603). Brush bristles (605) are arrayed and fixed at the bottom of the brush plate (604). A cutting blade (606) is fixed at the bottom of the machine body shell (1).

3. An automatic lawnmower for embankment protection slopes according to claim 1, characterized in that: The machine body shell (1) is detachably connected to a slide rail bracket (3). A fixing ring (301) is fixed inside the slide rail bracket (3). A pressure plate (302) is fixed inside the fixing ring (301). A fixing screw (303) is fixed inside the machine body shell (1). A fixing nut (304) is fixed on the surface of the fixing screw (303). A gasket is provided between the fixing nut (304) and the pressure plate (302). An eight-claw spring sheet (305) is slidably connected inside the pressure plate (302). The eight-claw spring sheet (305) is slidably connected between the pressure plate (302) and the machine body shell (1).

4. An automatic lawnmower for embankment slope protection as described in claim 1, characterized in that: The front end of the outer shell (1) of the machine body is electrically connected to a night searchlight (4), and a light-transmitting plate is fixed to the front end of the night searchlight (4).

5. An automatic lawnmower for embankment protection slopes according to claim 1, characterized in that: The upper end of the outer shell (1) of the machine body is fixed with a signal baseline (5), and multiple signal baselines (5) slide against each other.

6. An automatic lawnmower for embankment slope protection as described in claim 1, characterized in that: The two front wheels of the outer shell (1) are independent drive wheels, each driven by a separate motor.

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