Triple mower capable of self-adapting to terrains

Abstract

Three mowing cutter mechanisms are sequentially arranged at equal intervals in the length direction of a supporting plate, the center points of the three mowing cutter mechanisms are sequentially connected to form an isosceles triangle, a cutter head and three blades arranged on the cutter head are arranged on the cutter head, and the three blades are arranged on the cutter head. The three blades are arranged on the periphery of the cutter head in a surrounding mode, and the interval between the central angles of every two adjacent blades is 120 degrees. That is, the design that the three mowing knife mechanisms are arranged in a staggered mode not only can meet the requirement for the mowing breadth, but also can guarantee the smaller overall dimension of the knife disc. By means of the design, the mower has higher compactness and flexibility while keeping efficient operation, operation in a narrow area is facilitated, obstruction and collision in the operation process are reduced, and the operation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of weeding equipment, and more particularly to a triple lawn mower capable of adapting to terrain. Background Art

[0002] Weed growth is a common problem in solar photovoltaic power plants. The height of weeds often affects the proper functioning of solar panels, thereby impacting photovoltaic power generation. As weeds grow, they block the panels, reducing the amount of sunlight they receive and reducing power generation efficiency. Furthermore, weeds can damage the equipment in the photovoltaic power plant, such as damaging solar panels and blocking vents, increasing maintenance costs and difficulties. To address this issue, effective weed control measures are needed. Traditional weed control methods typically require manual labor, which is not only inefficient but also prone to damage to equipment. With the continuous development of intelligent technology, weed control robots are gradually replacing manual weeding operations. However, in practical application, weed control robots also face some technical challenges, especially in complex and changing environments.

[0003] A common problem with robots is that weeds covered by the wheel trains on both sides are often difficult to effectively cut. This is primarily due to the robot's structural design and the limited motion of the blades, which can prevent weeds from being completely removed in some areas. To address this issue, the widely used weeding blade assemblies currently include hammer blade assemblies and roller blade assemblies.

[0004] The hammer cutter assembly, with its high-speed rotation and sharp blade design, can effectively cut most weeds. The reel cutter assembly, on the other hand, uses its rolling blades to cover a wider area, thereby improving weeding efficiency. However, due to obstacles such as rocks on mountainous terrain, weeding robots are prone to collisions during operation, resulting in blade damage or failure.

[0005] Therefore, how to improve the adaptability and durability of weeding robots in complex environments while ensuring the weeding effect has become the focus of current technical research. Summary of the Invention

[0006] In order to overcome the shortcomings of the existing technology, the present invention provides a triple lawn mower that can adapt to terrain. While ensuring the weeding effect, it improves the adaptability and durability of the triple lawn mower in complex environments, reduces the probability of collision between the blade and stones, and thus reduces the risk of blade damage or failure.

[0007] The technical solution of the present invention is as follows: A three-mower capable of adapting to terrain comprises a chassis assembly and a three-mower blade assembly, wherein the three-mower blade assembly is connected to the chassis assembly;

[0008] The triple-type knife group includes a support plate, an anti-collision device and three mowing knife mechanisms installed on the support plate, the anti-collision device is installed on the front end surface of the support plate, the three mowing knife mechanisms are arranged in sequence at equal intervals along the length direction of the support plate, and the center points of the three mowing knife mechanisms are connected in sequence to form an isosceles triangle, each of the mowing knife mechanisms includes a drive motor, a knife disc and three blades arranged on the knife disc, the three blades are arranged around the outer circumference of the knife disc, and the central angle interval between two adjacent blades is 120°.

[0009] Furthermore, it also includes a connecting component, through which the triple knife group and the chassis assembly are connected, wherein the connecting component includes a rod group and an electric push rod, and the electric push rod is arranged between the two rod groups. Each of the rod groups includes two connecting rods, and the two connecting rods are arranged in an upper and lower manner and the two ends of each connecting rod are respectively connected to the triple knife group and the chassis assembly.

[0010] Furthermore, a lighting assembly is installed on the support plate, and two lighting assemblies are provided, and the two lighting assemblies are arranged along the length direction of the support plate.

[0011] Furthermore, a support wheel assembly is installed on the support plate, and two support wheel assemblies are provided. The two support wheel assemblies are arranged along the length direction of the support plate, and the support wheel assembly is located between the anti-collision device and the mower mechanism.

[0012] Furthermore, it also includes a locking mechanism, and the electric push rod and the connecting rod are connected to the chassis assembly through the locking mechanism, wherein the locking mechanism includes a driving screw, a flat washer and a locking nut, and the flat washer and the locking nut are respectively mounted on the driving screw.

[0013] Furthermore, a controller is provided on the support plate, and three controllers are provided. The three controllers are electrically connected to the driving motors in the three mowing blade mechanisms in a one-to-one correspondence.

[0014] Furthermore, a mounting bracket is provided on the upper end surface of the support plate, and the mounting bracket includes a first side wall, a second side wall and a third side wall, the first side wall and the third side wall are arranged opposite to each other, one side of the second side wall is connected to the first side wall, and the other side of the second side wall is connected to the third side wall, and the first side wall, the second side wall and the third side wall are arranged to form a accommodating cavity with an opening facing the electric push rod.

[0015] Furthermore, a pin shaft is provided at one end of the electric push rod, and two oppositely arranged mounting plates are provided on the second side wall. Each mounting plate is provided with a slide groove extending along the height direction of the mounting plate, and at least a portion of the pin shaft is passed through the electric push rod and the slide groove to achieve connection.

[0016] Furthermore, it also includes a tension spring, and through holes are provided at both ends of the pin shaft. One end of the tension spring is hung in the through hole, and the other end of the tension spring is connected to the hanging ear on the support plate.

[0017] Furthermore, the first side wall and the third side wall are both provided with mounting holes, and the mounting holes are used to cooperate with the locking mechanism to mount the connecting rod on the first side wall or the third side wall.

[0018] The present invention according to the above scheme has the following beneficial effects:

[0019] (1) The present invention provides a three-mower lawn mower that can adapt to terrain. The three mowing blade mechanisms are arranged in sequence with equal intervals along the length direction of the support plate, and the center points of the three mowing blade mechanisms are connected in sequence to form an isosceles triangle. The staggered arrangement design can not only meet the requirements of the mowing width, but also ensure a smaller outer size of the blade disc. This design makes the mower more compact and flexible while maintaining efficient operation, making it easier to operate in a small area, reducing obstacles and collisions during operation, and improving operation efficiency.

[0020] (2) The present invention provides a three-mower lawn mower that can adapt to terrain. By arranging the mowing blade mechanisms in the form of an isosceles triangle, it can ensure that during the mowing process, each mowing blade can effectively cover its corresponding area, thereby improving the mowing coverage rate and efficiency; secondly, this structural design can effectively disperse the vibration and impact generated during the mowing process, thereby reducing damage to the mower and extending its service life.

[0021] (3) The present invention provides a three-mower lawn mower that can adapt to terrain. The three mowing blade mechanisms are arranged at equal intervals along the length of the support plate, and their center points form an isosceles triangle. This layout enables the three-mower lawn mower to evenly cover and cut the grass during movement, effectively solving the problem of weed residue during weeding. Secondly, this structural design enables the mowing blade mechanisms to completely cover the maximum width of both sides of the three-mower assembly, ensuring that the three-mower lawn mower will not miss any area of ​​weeds during movement, avoiding the situation where the weeds covered by the wheel system on both sides cannot be cut, and can meet the requirements of the mowing width while ensuring a smaller blade disc size, thereby ensuring that the three-mower lawn mower can pass smoothly in a narrow area. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 Schematic diagram of the three-dimensional structure of a three-mower capable of adaptively adapting to terrain in an embodiment of the present invention;

[0024] Figure 2 is a top view of a three-mower capable of adaptively adapting to terrain in an embodiment of the present invention;

[0025] Figure 3 Schematic diagram of the three-dimensional structure of a triple blade assembly in an embodiment of the present invention;

[0026] Figure 4 2. It is a bottom view of a triple blade assembly according to an embodiment of the present invention;

[0027] Figure 5 is a side view of a triple blade assembly in an embodiment of the present invention;

[0028] Figure 6 Schematic diagram of the structure of the cutter head and blades in an embodiment of the present invention;

[0029] Figure 7 The diagram is a principle diagram of the operation of a terrain-adaptive triple lawn mower according to an embodiment of the present invention when encountering an obstacle.

[0030] In the figure, 1. chassis assembly; 2. triple blade group; 21. support plate; 22. anti-collision device; 23. mower mechanism; 231. drive motor; 232. blade; 233. blade; 3. connecting assembly; 31. rod group; 311. connecting rod; 32. electric push rod; 321. pin shaft; 322. tension spring; 4. lighting assembly; 5. support wheel assembly; 6. locking mechanism; 7. controller; 8. mounting frame; 81. first side wall; 82. second side wall; 821. mounting plate; 83. third side wall; 9. obstacle. DETAILED DESCRIPTION

[0031] The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention. That is, the present invention is not limited to the described embodiments.

[0032] In the description of the present invention, it should be noted that, unless otherwise specified, "plurality" means two or more. Terms such as "upper," "lower," "left," "right," "inner," and "outer" that indicate directions or positional relationships are intended solely to facilitate and simplify the description of the present invention. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific manner, and are therefore not to be construed as limitations on the present invention. Furthermore, terms such as "first" and "second," etc., are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

[0033] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; and they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention depending on the specific circumstances.

[0034] In order to better understand the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments:

[0035] See also Figures 1 to 7 As shown, an embodiment of the present invention provides a three-combination lawn mower capable of adapting to terrain, comprising a chassis assembly 1 and a three-combination blade assembly 2, wherein the three-combination blade assembly 2 is connected to the chassis assembly 1;

[0036] The triple blade group 2 includes a support plate 21, an anti-collision device 22 and three mowing blade mechanisms 23 installed on the support plate 21. The anti-collision device 22 is installed on the front end surface of the support plate 21. Specifically, the anti-collision device 22 in this embodiment plays a safety protection role. When the triple lawn mower encounters thick trees or large rocks and cannot pass through, the anti-collision device 22 can be triggered in time to transmit the information to the control system of the triple lawn mower, and then control the triple lawn mower to stop moving forward, thereby avoiding the phenomenon of the motor being stuck and continuing to run and burning the motor.

[0037] In this embodiment, the three mowing blade mechanisms 23 are arranged at equal intervals along the length direction of the support plate 21. This arrangement enables the triple mower to evenly cover the mowing area during movement, which not only improves the mowing efficiency, but also ensures the uniformity of mowing and avoids omissions or repeated mowing. The center points of the three mowing blade mechanisms 23 are connected in sequence to form an isosceles triangle. This design enhances the stability and reliability of the triple mower, allowing the mower to maintain a stable working state when facing complex terrain or environment, and reduces the risk of damage caused by vibration or impact.

[0038] Each mower mechanism 23 includes a drive motor 231, a blade disc 232, and three blades 233 disposed on the blade disc 232. The three blades 233 are arranged around the outer periphery of the blade disc 232, and the central angle interval between two adjacent blades 233 is 120°. Specifically, the drive motor 231 is a high-power brushless DC motor, and the support plate 21 is also equipped with a controller 7. There are three controllers 7, each of which is electrically connected to the drive motors 231 in the three mower mechanisms 23, one on one. Each controller 7 is fixed to the support plate 21 by screws. In this embodiment, the blade disc 232 is a mounting flange, and the blades 233 are fastened by screws, flat washers, and lock nuts to ensure a stable connection between the blades 233 and the mounting flange.

[0039] In order to prevent the controller 7 from being hit by foreign objects or being penetrated by liquids, which may cause damage to the internal circuits, in this embodiment, the outer cover of the controller 7 is provided with a protective cover, and the protective cover is fixed to the support plate 21 by screws.

[0040] In this embodiment, the three mowing knife mechanisms 23 are respectively installed at the installation positions reserved for the support plate 21 and are fastened with screws to ensure the firm installation of the mowing knife mechanisms 23 and the support plate 21; the blade 233 and the cutter disc 232 in each mowing knife mechanism 23 are connected by a pin shaft 321, so that the blade 233 can rotate freely around the pin shaft 321. When performing weeding operations, the weeds can be cut by inertia, and the blade 233 can be automatically retracted when colliding with a stone to avoid damage to the blade 233.

[0041] Preferably, a support wheel assembly 5 is mounted on the front end of the support plate 21. Two support wheel assemblies 5 are provided. The two support wheel assemblies 5 are arranged along the length direction of the support plate 21, and the support wheel assembly 5 is located between the anti-collision device 22 and the mower mechanism 23. Specifically, the support wheel assembly 5 is fixedly mounted on the support plate 21 by using bolts and nuts. The support plate 21 is also mounted with a lighting assembly 4. Two lighting assemblies 4 are provided. The two lighting assemblies 4 are arranged along the length direction of the support plate 21 and are adjacent to the support wheel assembly 5 to ensure that the lighting assembly 4 is also located at the front end of the support plate 21. Similarly, the lighting assembly 4 is fixedly mounted on the support plate 21 by using bolts and nuts.

[0042] Preferably, the three-way lawn mower capable of adaptive terrain provided in this embodiment also includes a connecting component 3, and the three-way knife group 2 and the chassis component 1 are connected through the connecting component 3, wherein the connecting component 3 includes a rod group 31 and an electric push rod 32, and the electric push rod 32 is arranged between the two rod groups 31, and each rod group 31 includes two connecting rods 311, and the two connecting rods 311 are configured in an upper and lower manner and the two ends of each connecting rod 311 are respectively connected to the three-way knife group 2 and the chassis component 1.

[0043] Specifically, a mounting frame 8 is provided on the upper end surface of the support plate 21, and the mounting frame 8 includes a first side wall 81, a second side wall 82 and a third side wall 83. The first side wall 81 and the third side wall 83 are arranged opposite to each other, one side of the second side wall 82 is connected to the first side wall 81, and the other side of the second side wall 82 is connected to the third side wall 83. The first side wall 81, the second side wall 82 and the third side wall 83 are arranged to form a accommodating cavity with an opening facing the electric push rod 32.

[0044] Preferably, a pin shaft 321 is provided at one end of the electric push rod 32, and two oppositely arranged mounting plates 821 are provided on the second side wall 82. Each mounting plate 821 is provided with a slide groove extending along the height direction of the mounting plate 821, and at least a portion of the pin shaft 321 is passed through the electric push rod 32 and the slide groove to achieve connection.

[0045] Preferably, a tension spring 322 is further included. Through holes are provided at both ends of the pin shaft 321 . One end of the tension spring 322 is hooked in the through hole, and the other end of the tension spring 322 is connected to the hanging ear on the support plate 21 .

[0046] Preferably, both the first side wall 81 and the third side wall 83 are provided with mounting holes, and the mounting holes are used to cooperate with the locking mechanism 6 to mount the connecting rod 311 on the first side wall 81 or the third side wall 83 .

[0047] Preferably, the electric push rod 32 and the connecting rod 311 are both connected to the chassis assembly 1 through a locking mechanism 6, wherein the locking mechanism 6 includes a driving screw, a flat washer and a locking nut, and the flat washer and the locking nut are respectively mounted on the driving screw.

[0048] For further explanation, an embodiment of the present invention provides an installation process for a three-mower lawn mower capable of adaptive terrain, as follows:

[0049] Step 1. Place the blade 233 inside the mounting flange, then use the plug screw Φ10×14-M8 to pass through the mounting flange and the blade 233 in turn, and then tighten it with a flat washer Φ8 and a lock nut M8. Then install the drive motor 231 on the support plate 21 and fix it with four hexagon socket screws M6×20 respectively. Then place the controller 7 on the support plate 21 and fix it with a hexagon socket flat head screw M6×16, a spring washer Φ6, and a flat washer Φ6.

[0050] Step 2: Install the three assembled mower blade mechanisms 23 onto the support plate 21 and thread them onto the output shaft of the drive motor 231. Secure them using M6×16 hexagon socket head screws, Φ6 spring washers, and large Φ6 flat washers. Next, thread the support wheel assembly 5 onto the support plate 21 and secure them using M30 hexagonal thin nuts. Install the lighting assembly 4 on both sides of the support plate 21 and secure them using the included M8 bolts.

[0051] Step 3: Install four copper sleeves (Φ20×Φ18×10) into the holes at both ends of the connecting rod 311. Then, install the connecting rod 311 onto the support plate 21 and secure it with a Φ16×65-M12 screw and an M12 nut.

[0052] Step 4: Align the socket at the telescopic end of the electric push rod 32 with the slot on the mounting plate 821, insert the pin 321, and secure it with a 4×28 split pin on the other side. Furthermore, hook one end of the tension spring 322 on the round hole of the pin 321 and the other end on the lug of the support plate 21, allowing the electric push rod 32 to slide within the slot. During actual operation, the ground clearance can be adjusted according to the terrain, and the adjustment range is between 0 and 100 mm.

[0053] Step 5: Install the anti-collision device 22 to the front end of the support plate 21 and fix it with the screws provided with the anti-collision device 22.

[0054] Step 6. Assemble the assembled triple blade assembly 2 and chassis assembly 1, and use the plug screw Φ16×65-M12, flat washer Φ12, and lock nut M12 to fix the connecting rod 311 in the triple blade assembly 2; then use the plug screw Φ13×55-M10, flat washer Φ10, and lock nut M10 to fix the mounting hole at the tail end of the electric push rod 32.

[0055] The working process of the terrain-adaptive triple lawn mower provided by the embodiment of the present invention is as follows:

[0056] See also Figure 7As shown, when performing weeding operations, when the support wheel assembly 5 installed on the triple blade assembly 2 travels on a slope or obstacle 9 (tree roots, rocks, etc.), the support force of the ground increases, causing the support plate 21 to move upward; the electric push rod 32 used to adjust the height of the support plate 21 from the ground has a fixed extension length, so the connecting rod 311 will rotate around the mounting fulcrum on the chassis assembly 1, thereby tilting the support plate 21. After returning to flat ground or avoiding the obstacle 9, the tension spring 322 installed at one end of the electric push rod 32 will pull the electric push rod 32 downward to the initial working position. Through the rotation of the four-bar linkage, the support plate 21 is restored to the working height, ensuring that the triple blade assembly 2 can continue to perform weeding operations.

[0057] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

[0058] The above is an exemplary description of the patent of the present invention in conjunction with the accompanying drawings. It is obvious that the implementation of the patent of the present invention is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the patent of the present invention, or the concept and technical solution of the patent of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A three-mower lawn mower capable of adapting to terrain, characterized in that: include: A chassis assembly (1) and a triple-type knife assembly (2), wherein the triple-type knife assembly (2) and the chassis assembly (1) are connected; The triple blade group (2) comprises a support plate (21), an anti-collision device (22) and three mowing blade mechanisms (23) mounted on the support plate (21); the anti-collision device (22) is mounted on the front end surface of the support plate (21); the three mowing blade mechanisms (23) are arranged in sequence and at equal intervals along the length direction of the support plate (21); and the center points of the three mowing blade mechanisms (23) are connected in sequence to form an isosceles triangle; each mowing blade mechanism (23) comprises a driving motor (231), a knife disc (232) and three blades (233) arranged on the knife disc (232); the three blades (233) are arranged around the outer periphery of the knife disc (232), and the central angle interval between two adjacent blades (233) is 120°.

2. The terrain-adaptive triple lawn mower according to claim 1, characterized in that: The invention also includes a connecting assembly (3), wherein the triple knife group (2) and the chassis assembly (1) are connected via the connecting assembly (3), wherein the connecting assembly (3) includes a rod group (31) and an electric push rod (32), wherein the electric push rod (32) is arranged between two rod groups (31), and each rod group (31) includes two connecting rods (311), wherein the two connecting rods (311) are arranged in an upper and lower configuration, and the two ends of each connecting rod (311) are respectively connected to the triple knife group (2) and the chassis assembly (1).

3. The terrain-adaptive triple lawn mower according to claim 1, characterized in that: A lighting assembly (4) is also mounted on the support plate (21), and two lighting assemblies (4) are provided, and the two lighting assemblies (4) are arranged along the length direction of the support plate (21).

4. The terrain-adaptive triple lawn mower according to claim 2, characterized in that: A support wheel assembly (5) is also mounted on the support plate (21). Two support wheel assemblies (5) are provided. The two support wheel assemblies (5) are arranged along the length direction of the support plate (21), and the support wheel assembly (5) is located between the anti-collision device (22) and the mowing blade mechanism (23).

5. The terrain-adaptive triple lawn mower according to claim 4, characterized in that: It also includes a locking mechanism (6), wherein the electric push rod (32) and the connecting rod (311) are connected to the chassis assembly (1) through the locking mechanism (6), wherein the locking mechanism (6) includes a plug screw, a flat washer and a locking nut, and the flat washer and the locking nut are respectively sleeved on the plug screw.

6. The terrain-adaptive triple lawn mower according to claim 1, characterized in that: The support plate (21) is also provided with a controller (7), and three controllers (7) are provided. The three controllers (7) are electrically connected to the driving motors (231) in the three mowing blade mechanisms (23) in a one-to-one correspondence.

7. The terrain-adaptive triple lawn mower according to claim 5, characterized in that: A mounting frame (8) is provided on the upper end surface of the support plate (21), and the mounting frame (8) includes a first side wall (81), a second side wall (82) and a third side wall (83), the first side wall (81) and the third side wall (83) are arranged opposite to each other, one side of the second side wall (82) is connected to the first side wall (81), and the other side of the second side wall (82) is connected to the third side wall (83), and the first side wall (81), the second side wall (82) and the third side wall (83) are arranged to form a receiving cavity with an opening facing the electric push rod (32).

8. The terrain-adaptive triple lawn mower according to claim 7, characterized in that: A pin shaft (321) is provided at one end of the electric push rod (32), and two mounting plates (821) are provided on the second side wall (82), and each mounting plate (821) is provided with a slide groove extending along the height direction of the mounting plate (821). At least a portion of the pin shaft (321) is passed through the electric push rod (32) and the slide groove to achieve connection.

9. The terrain-adaptive triple lawn mower according to claim 8, characterized in that: It also includes a tension spring (322), with through holes provided at both ends of the pin shaft (321), one end of the tension spring (322) being hooked in the through hole, and the other end of the tension spring (322) being connected to the hanging ear on the support plate (21).

10. The terrain-adaptive triple lawn mower according to claim 7, characterized in that: The first side wall (81) and the third side wall (83) are both provided with mounting holes, and the mounting holes are used to cooperate with the locking mechanism (6) to mount the connecting rod (311) on the first side wall (81) or the third side wall (83).

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