Independent quick-release cutting platform for mower

Abstract

The utility model belongs to the technical field of hay mowers, and particularly relates to an independent quick-release cutting platform for a hay mower, which comprises a cutting panel, a connecting support and a height adjusting module, the cutting panel is respectively provided with a cutting cutterhead and a second control module used for controlling the cutting cutterhead to work, and the height adjusting module is connected with the connecting support. The flexible independent quick-release cutting platform combining active height adjustment and up-down and left-right floating along with the terrain is comprehensively provided, the cutting requirements in different scenes can be met, and the good cutting effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lawn mowers, and particularly relates to an independent quick-release cutting platform for a lawn mower. Background Art

[0002] Lawn mowers are machines used in gardens, landscapes, agriculture and other fields to trim or remove the green grass or dead wood on the ground according to actual needs. With the rapid development of municipal gardens, photovoltaic power stations and orchards in China, the demand for lawn mowing is increasing day by day. Due to the vast territory of China and the inconsistent planting habits in different regions, there are relatively high requirements for the flexibility, high reliability and applicability of the machines.

[0003] Most of the existing garden machines adopt the walking or riding type. The whole machine structure is heavy, the steering is not flexible, and it requires an experienced driver to operate. The price is expensive and the operation is inconvenient. The hand-held type has high noise and labor intensity, and causes great harm to the operators. Most of the landscape machines adopt the crawler chassis + disc cutter type, which has the problem of incomplete cutting due to the chassis pressing the grass. One machine is only suitable for one cutting width. Different cutting widths require switching the whole machine, and the cutting width is limited by the maximum disc diameter, resulting in low efficiency and poor adaptability to different planting habits. Most of the agricultural machines still use the structure of straw returning machines and adopt hammer cutting, which has high power consumption, the whole vehicle is heavy, the passability is poor, the center of gravity is relatively high, and it is easy to roll over when climbing slopes and crossing obstacles, and there are great safety hazards in complex road conditions.

[0004] For example, the Chinese invention patent with the application number of 202410059125.5 discloses a self-propelled landscape lawn mower, which includes: a frame and a floating cutter head, a traveling mechanism, a height adjustment mechanism, a grass collection box and a control unit installed on the frame. A gasoline engine is installed on the frame, and the gasoline engine is equipped with an electromagnetic clutch and a clutch drive wheel.

[0005] For another example, the Chinese invention patent with the publication number of CN102369796A discloses a multi-joint conforming floating cutting table, which can ensure that the cutting table conforms to the ground in real time while the frame does not touch the ground, ensuring the lowest cutting stubble and avoiding damaging the surface vegetation at the same time.

[0006] For another example, a Chinese invention patent with the publication number CN212876737U discloses an automatic lawn mower, including: a housing; a moving module for driving the automatic lawn mower to move; a mowing mechanism for mowing; a protective cover covering the mowing mechanism; a control module for controlling the moving module to drive the automatic lawn mower to move and controlling the mowing mechanism to perform cutting; a first floating mechanism; the first floating mechanism allows the mowing mechanism to move up and down; the mowing mechanism is located at the initial cutting position within its moving range in a state without external force; a second floating mechanism; the second floating mechanism allows the protective cover to move up and down; the protective cover is located at the initial covering position within its moving range in a state without external force; wherein, one of the initial covering position and the initial cutting position can be actively adjusted, and the other can be passively adjusted following the actively adjusted position.

[0007] However, the above solution has at least the following defects:

[0008] 1. Complex structure and poor flexibility;

[0009] 2. Poor adaptability and inability to adapt to different cutting devices;

[0010] 3. Complex connection structure and complex disassembly and assembly steps. Utility Model Content

[0011] The purpose of the present utility model is to provide an independent quick-release cutting platform for a lawn mower to partially alleviate or solve the above problems and achieve active adjustment and passive lifting of the cutting height.

[0012] To solve the above-mentioned technical problems, the present utility model specifically adopts the following technical solutions: An independent quick-release cutting platform for a lawn mower, comprising a cutting panel, a connecting bracket and a height adjustment module. A cutting disc and a second control module for controlling the operation of the cutting disc are respectively arranged on the cutting panel. The first end of the connecting bracket is fixedly connected to the upper surface of the cutting panel, and the second end of the connecting bracket is detachably connected to the connecting component of the lawn mower. Among them, a first mounting hole and a second mounting hole are respectively arranged on the connecting component, and a third mounting hole matching the first mounting hole and at least two fourth mounting holes with different heights matching the second mounting hole are arranged at the second end of the connecting bracket. When a first fixing member penetrates through the first mounting hole and the third mounting hole, or when a second fixing member penetrates through the second mounting hole and the fourth mounting hole, the connecting bracket can rotate relative to the connecting component. When the first fixing member penetrates through the first mounting hole and the third mounting hole, and at the same time the second fixing member penetrates through the second mounting hole and the fourth mounting hole, the first fixing member and the second fixing member cooperate to fix the connecting bracket and the connecting component. The height adjustment module includes a height adjustment bracket. A height limiting wheel is arranged on the first side of the height adjustment bracket. The second side of the height adjustment bracket is rotatably connected to the cutting panel. At least two fifth mounting holes with different heights are arranged between the first side and the second side of the height adjustment bracket. A sixth mounting hole matching the fifth mounting hole is arranged on the cutting panel. Or at least two sixth mounting holes with different heights are arranged on the cutting panel, and a fifth mounting hole matching the sixth mounting hole is arranged on the height adjustment bracket. When a third fixing member penetrates through the fifth mounting hole and the sixth mounting hole, the cutting panel and the height adjustment bracket are fixed.

[0013] As an improvement, an adjustable-length connecting chain is arranged on the connecting bracket. One end of the connecting chain is connected to the connecting bracket, and the other end is detachably connected to an elastic member of the connecting component.

[0014] As an improvement, a height adjustment pad is arranged between the height limiting wheel and the height adjustment bracket.

[0015] As an improvement, the cutting disc includes a disc body. A bent disc and a blade are rotatably arranged on the bottom of the disc body in sequence from top to bottom. A driving device for driving the bent disc and the blade to rotate is arranged on the disc body.

[0016] As an improvement, an installation space is provided inside the cutting panel. A grass guard plate cooperating with the cutting cutter head is installed in the installation space. The grass guard plate and the inner wall of the cutting panel cooperate to form a grass guiding channel. One side of the cutting end of the blade curls towards the bent cutter head to form a folded corner portion. The acute angle between the plane of the bent cutter head and the plane where the blade is located is 55°-80°.

[0017] As an improvement, a first through hole is provided on the bent cutter head, and a second through hole cooperating with the first through hole is provided on the blade. The bent cutter head and the blade are connected by bolts. The bolts contract from the head to the end direction towards the central axis of the bolts to form a first step and a second step respectively twice; when the bolts sequentially penetrate through the second through hole and the first through hole, the blade and the bent cutter head are respectively located on the first step and the second step, so that when the resistance received by the blade is less than or equal to the first force, the blade and the bent cutter head rotate synchronously, and when the resistance received by the blade is greater than the first force, the blade can rotate relative to the bent cutter head.

[0018] As an improvement, wear-resistant plates are provided on both sides of the cutting panel. A front protection baffle and a rear protection baffle are respectively provided at the front end and the rear end of the cutting panel. A support wheel is provided at the rear end of the cutting panel, and the rear protection baffle covers the support wheel.

[0019] As an improvement, there are two connecting brackets, and the two connecting brackets are connected and fixed to the cutting panel through an intermediate bracket.

[0020] As an improvement, a front mounting seat and a rear mounting seat are respectively provided on the upper surface of the cutting panel. The sixth mounting hole is provided on the front mounting seat, and the second side of the height adjustment bracket is rotatably arranged on the rear mounting seat through a rotating shaft sleeve.

[0021] As an improvement, a collision prevention plate is provided at the front end of the height adjustment bracket.

[0022] The principle and beneficial effects of the present utility model are as follows:

[0023] In order to meet different cutting requirements (such as different stubble heights) under different terrains or complex terrains, the present application provides a flexible independent quick-release cutting platform that actively adjusts the height and floats up, down, left, and right with the terrain.

[0024] Specifically, by setting two sets of height adjustment mechanisms, the active and passive lifting of the cutting panel is achieved, making the cutting platform more flexible relative to the trolley. Among them, different fourth mounting holes with different heights can be selected first to adjust the height of the connecting bracket, and then different fifth mounting holes or sixth mounting holes with different heights can be selected to adjust the relative height between the cutting platform and the height adjustment mechanism, so as to ensure a large adjustable range of the cutting height.

[0025] Furthermore, by setting a floating mechanism (including structures such as a push rod arm and an elastic member) on the connecting bracket and the connecting component, it can not only float up and down with the terrain and tilt left and right, but also be lifted passively, thereby always maintaining ground-hugging mowing. It can adaptively float and cut on high and low roads, and keep the stubble height consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual scale. Obviously, the following-described drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a lawn mower equipped with a modular intelligent trolley in an unfolded state according to an exemplary embodiment of the present invention;

[0028] Figure 2 FIG. 2 is a schematic diagram of the overall structure of a lawn mower equipped with a modular intelligent trolley in a semi-folded state according to an exemplary embodiment of the present invention;

[0029] Figure 3 FIG. 3 is a schematic diagram of the overall structure of a lawn mower equipped with a modular intelligent trolley in a folded state according to an exemplary embodiment of the present invention;

[0030] Figure 4 FIG. 4 is a schematic diagram of the structure after the modular intelligent trolley and the cutting platform are disassembled;

[0031] Figure 5 FIG. 5 is a schematic diagram of the overall structure of the modular intelligent trolley;

[0032] Figure 6 FIG. 6 is a schematic diagram of the disassembled state of the modular intelligent trolley;

[0033] Figure 7 FIG. 7 is a schematic diagram of the disassembled state of the modular intelligent trolley from another angle;

[0034] Figure 8 Schematic diagram of the walking drive module of the modular intelligent vehicle

[0035] Figure 9 Schematic diagram of the power module of the modular intelligent vehicle

[0036] Figure 10 Combined schematic diagram of the power module and the walking drive module of the modular intelligent vehicle

[0037] Figure 11 Schematic diagram of the disassembly of the power module and the walking drive module of the modular intelligent vehicle

[0038] Figure 12 Structural diagram of the handle of the modular intelligent vehicle

[0039] Figure 13 Schematic diagram of the structure when the lock is in the locked state

[0040] Figure 14 Schematic diagram of the structure when the lock is in the open state

[0041] Figure 15 Schematic diagram of the footrest

[0042] Figure 16 Stereogram of the connection component and the connection bracket after assembly

[0043] Figure 17 Side view of the connection component and the connection bracket after assembly

[0044] Figure 18 Schematic diagram of the push rod arm

[0045] Figure 19 Overall structural schematic diagram of the cutting platform

[0046] Figure 20 Schematic diagram of the cutting panel

[0047] Figure 21 Exploded view of the cutting platform

[0048] Figure 22 Schematic diagram of the height adjustment module

[0049] Figure 23 Schematic diagram of the installation position of the cutting tool disc on the cutting panel

[0050] Figure 24 Schematic diagram when one type of energy pack is installed in the power module

[0051] Figure 25 Schematic diagram when another type of energy pack is installed in the power module

[0052] Figure 26 Schematic diagram when installing another energy pack for the power module.

[0053] Markings in the figure: 1, cutting panel; 101, wear-resistant plate; 102, support wheel; 103, front protective baffle; 104, rear protective baffle; 105, front mounting seat; 106, rear mounting seat; 107, grass guard; 108, second control module; 2, connecting component; 21, floating arm; 211, support rod; 212, spherical bearing; 213, first mounting hole; 214, second mounting hole; 22, push rod; 23, push rod support arm; 231, limiting part; 232, connecting arm; 233, support rod; 234, limiting groove; 24, elastic part; 25, base; 3, modular intelligent trolley; 31, walking drive module; 311, drive main body; 312, guide rail; 313, foot support component; 3131, support main body; 3132, reset part; 3133, upper folding surface; 314, drive reduction system; 32, power module; 321, walking frame; 322, energy pack; 323, pulley; 324, handle; 3241, first handle; 3242, second handle; 325, first control module; 326, walking wheel; 327, universal ball; 331, locking part; 332, locking pin; 333, limit bolt; 334, lock; 3341, front fixing seat; 3342, rear fixing seat; 4, connecting bracket; 41, third mounting hole; 42, fourth mounting hole; 43, connecting chain; 44, intermediate bracket; 45, intermediate bracket mounting seat; 51, first fixing part; 52, second fixing part; 6, cutting tool disc; 61, bent tool disc; 62, blade; 63, driving device; 64, bolt; 65, anti-loosening nut sleeve; 66, anti-loosening spacer sleeve; 7, height adjustment module; 71, height limit wheel; 72, height adjustment bracket; 73, adjustment pad; 74, rotating shaft sleeve; 75, anti-collision plate; 76, third fixing part. Detailed implementation mode

[0054] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0055] In this article, suffixes such as "module", "component", or "unit" used to represent elements are only for the convenience of describing the present invention and have no specific meaning in themselves. Therefore, "module", "component", or "unit" can be used interchangeably.

[0056] In this text, the orientation or positional relationships indicated by terms such as "upper", "lower", "inner", "outer", "front", "rear", "one end", "the other end", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0057] In this text, unless otherwise clearly specified and defined, terms such as "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0058] In this text, "and / or" includes any and all combinations of one or more of the listed related items.

[0059] In this text, "a plurality of" means two or more, that is, it includes two, three, four, five, etc.

[0060] Embodiment 1

[0061] See Figures 19 - 23 , the present utility model provides an independent quick-release cutting platform for a lawn mower, as Figure 19 , including a cutting panel 1, a connecting bracket 4 and a height adjustment module 7. A cutting cutter head 6 and a second control module 108 for controlling the operation of the cutting cutter head are respectively arranged on the cutting panel 1.

[0062] Among them, the cutting panel serves as the main frame of the cutting platform and is used to carry other components. One end of the connecting bracket is connected to the upper surface of the cutting panel through a bolt assembly, and the other end is connected to the connecting component of the lawn mower through a locking pin; the cutting cutter head is assembled on the cutting panel. During implementation, different numbers of cutting cutter heads can be arranged at different positions according to the width of the cutting panel and the working conditions, so as to realize the function of shredding the stems within the width; one end of the height adjustment bracket is hinged to the cutting panel through a rotating shaft sleeve, and one end is connected to the cutting panel through a quick insertion pin, and different ground heights of the cutting panel are realized through different pin positions on it; the second control module is connected to the cutting panel through a bolt assembly, mainly controlling the power of the cutting cutter head and adjusting the cutter head speed and power consumption output in real time according to the working conditions. Through the mutual cooperation of the above components, high-quality and silent mowing of the cutting platform is achieved, and replacement and maintenance are convenient and fast, with strong expandability and adaptability.

[0063] Specifically, as shown in Figure 21 , the first end of the connecting bracket 4 is fixedly connected to the upper surface of the cutting panel 1, and the second end of the connecting bracket 4 is detachably connected to the connecting component of the lawn mower. Among them, a first mounting hole 213 and a second mounting hole 214 are respectively arranged on the connecting component, and a third mounting hole 41 matching the first mounting hole 213 and at least two fourth mounting holes 42 with different heights matching the second mounting hole 214 are arranged at the second end of the connecting bracket 4;

[0064] When the first fixing member 51 passes through the first mounting hole 213 and the third mounting hole 41, or when the second fixing member 52 passes through the second mounting hole 214 and one of the fourth mounting holes 42, the connecting bracket 4 can rotate relative to the connecting component; when the first fixing member 51 passes through the first mounting hole 213 and the third mounting hole 41, and at the same time the second fixing member 52 passes through the second mounting hole 214 and the fourth mounting hole 42, the first fixing member 51 and the second fixing member 52 cooperate to fix the connecting bracket and the connecting component.

[0065] In some embodiments, an adjustable-length connecting chain 43 is arranged on the connecting bracket. One end of the connecting chain 43 is fixed to the connecting bracket 4, and the other end is detachably connected to an elastic member (preferably a spring) of the connecting component.

[0066] In some embodiments, there are two connecting brackets, and the two connecting brackets are connected and fixed to the cutting panel through an intermediate bracket 44.

[0067] As shown in Figure 22 , the height adjustment module includes a height adjustment bracket 72. A height limit wheel 71 is arranged on the first side of the height adjustment bracket 72. The second side of the height adjustment bracket 72 is rotatably connected to the cutting panel. At least two fifth mounting holes with different heights are arranged between the first side and the second side of the height adjustment bracket 72, and a sixth mounting hole matching the fifth mounting hole is arranged on the cutting panel; or at least two sixth mounting holes with different heights are arranged on the cutting panel, and a fifth mounting hole matching the sixth mounting hole is arranged on the height adjustment bracket;

[0068] When the third fixing member passes through the fifth mounting hole and the sixth mounting hole, the cutting panel and the height adjustment bracket are fixed.

[0069] In some embodiments, a height adjustment pad 73 is arranged between the height limit wheel and the height adjustment bracket.

[0070] In some embodiments, a collision avoidance plate 75 is provided at the front end of the height adjustment bracket.

[0071] As Figure 23 , the cutting cutter head includes a cutter head body, and a bent cutter head 61 and a blade 62 are rotatably arranged on the bottom of the cutter head body in sequence from top to bottom. A driving device 63 (preferably a motor) for driving the rotation of the bent cutter head 61 and the blade 62 is arranged on the cutter head body; an installation space is arranged inside the cutting panel, and a grass blocking plate 107 that cooperates with the cutting cutter head is installed in the installation space. The grass blocking plate 107 and the inner wall of the cutting panel 1 cooperate to form a grass guiding channel. One side of the cutting end of the blade 62 curls towards the bent cutter head 61 to form a folded angle portion, and the acute angle between the plane where the bent cutter head 61 is located and the plane where the blade 62 is located is 55°-80°.

[0072] In some embodiments, a first through hole is arranged on the bent cutter head, a second through hole that cooperates with the first through hole is arranged on the blade, and the bent cutter head and the blade are connected by a bolt 64. The bolt 64 contracts from the head to the end direction towards the central axis of the bolt to form a first step and a second step respectively twice; when the bolt 64 sequentially passes through the second through hole and the first through hole, the blade and the bent cutter head are respectively located on the first step and the second step, so that when the resistance received by the blade is less than or equal to the first force, the blade and the bent cutter head rotate synchronously, and when the resistance received by the blade is greater than the first force, the blade can rotate relative to the bent cutter head.

[0073] In some embodiments, as Figure 20 , wear-resistant plates 101 are arranged on both sides of the cutting panel. A front protection baffle 103 and a rear protection baffle 106 are respectively arranged at the front end and the rear end of the cutting panel. A support wheel 102 is arranged at the rear end of the cutting panel, and the rear protection baffle 106 covers the support wheel 102; front mounting seats 105 and rear mounting seats 106 are respectively arranged on the upper surface of the cutting panel. The sixth mounting hole is arranged on the front mounting seat, and the second side of the height adjustment bracket is rotatably arranged on the rear mounting seat through a rotating shaft sleeve. By arranging different protection devices at different positions of the cutting panel, safety protection can be achieved and the overall strength of the cutting platform can be increased.

[0074] Exemplarily, as Figure 23, the cutting cutter head specifically includes a driving motor, a bent cutter head 61, a blade 62, a cutter head fixing and anti-loosening spacer 66, a bolt 64 and an anti-loosening nut sleeve 65. Among them, the driving motor is installed on the cutting panel through a motor mounting seat, which directly provides rotational power for the cutter head, has good balance, low noise, and is convenient for installation and maintenance. The motor mounting seat plays a role in installing, positioning and protecting the motor; and the output shaft of the driving motor includes (can be sleeved) a relatively large mounting boss to ensure a large joint surface with the bent cutter head and more stable high-speed rotation; the bent cutter head has a bent angle to cooperate with the grass collecting plate to complete grass collection and grass guiding. The blade 62 is made of high-strength alloy steel with a coating to increase the cutting performance and cutting life. The combination with the structure of the bent cutter head makes the grass crushing and grass discharging effects excellent while ensuring neat stubble; with the help of the boss and cutting surface structure of the bolt 64, when the blade 62 cuts into a relatively hard stone or foreign object, it can rotate around the bolt 64 to reduce the damage to the blade 62 and the driving motor. That is to say, during normal mowing, the blade 62 can be clamped between the second step and the head of the bolt 64. At this time, the position of the blade 62 and the cutting cutter head is relatively fixed. When the blade 62 cuts into a relatively hard object, the blade 62 can rotate around the bolt 64 between the second step and the head of the bolt 64; at the same time, the anti-loosening nut sleeve 65 and the anti-loosening spacer have the function of preventing the blade 62 and the bent cutter head from loosening; and the cutting cutter head blade 62 can be set in a style with an upward bending angle according to the stubble requirement. With the help of the formed air cavity, better stubble neatness, grass crushing and grass collecting effects can be achieved.

[0075] In some embodiments, two semi-circular cutter head card slots are provided on the output shaft of the driving motor. Correspondingly, a protrusion matching the cutter head card slot is provided on the part of the bent cutter head 61 combined with the motor output shaft. The two are clamped to achieve fixation, which can effectively prevent the bent cutter head 61 from loosening during high-speed rotation, increasing safety and reliability.

[0076] In some embodiments, a protective edge is also provided on the driving motor to prevent the high-speed rotating motor shaft from entangling grass during operation.

[0077] See Figure 21, the connecting bracket includes a left welding bracket and a right welding bracket (i.e., the two connecting brackets mentioned above) with one end fixed to the cutting panel 1 by a bolt assembly through a connecting mechanism and a mounting plate, and the other end connected to the driving body through a quick pin. The left welding bracket and the right welding bracket are symmetrically arranged. A middle bracket 44 that combines the left welding bracket and the right welding bracket and is fixed to the cutting panel by a middle bracket mounting seat 45, and a connecting chain with one end connected to the connecting bracket (including the left welding bracket and the right welding bracket) and the other end connected to a spring. The connecting chain 43 has multiple levels and can be adjusted according to the different weights of the cutting platform supported by the connecting bracket and the working conditions, thereby adjusting the spring force of the spring, changing the load-bearing fulcrum of the cutting platform for the modular intelligent trolley, and adjusting the overall balance and center-of-gravity distribution to achieve higher mobility and flexibility. A total of 4 quick lock pins are symmetrically used here. For the left side, the first fixing member 51 connects the third mounting hole on the front side of the left welding bracket and the first mounting hole on the front side of the connecting component, and the second fixing member 52 connects one of the fourth mounting holes on the rear side of the right welding bracket and the second mounting hole on the rear side of the connecting component. At the same time, the rear hole of the connecting component is hinged to the trolley body.

[0078] The front hole group of the lock pin (including the first mounting hole and the third mounting hole) and the rear hole group of the lock pin (including the second mounting hole and the fourth mounting hole) constitute a height adjustment system. The specific implementation method is that when the first fixing member is inserted into the front hole group of the lock pin and the second fixing member is inserted into different hole positions of the rear hole group of the lock pin, the connecting bracket drives the cutting panel 1, and then drives the cutting tool disc blade to have different relative heights with respect to the trolley chassis connected by the connecting component. At the same time, when one of the fixing members (such as the second fixing member) is pulled out from the corresponding hole group (such as the rear hole group of the lock pin), the cutting panel and all the components it carries can be flipped around the fixing member in the other hole group (such as the front hole group of the lock pin). This makes maintenance, transfer, and transportation more flexible and convenient. During this process, the spring always has spring tension and is transmitted to the cutting panel through the left welding bracket and the right welding bracket. The cutting panel expands and contracts with the different forces, thereby realizing the floating of the cutting panel 1 relative to the trolley within a small range.

[0079] As Figure 22 and Figure 19, the height adjustment module includes a height adjustment bracket 72 (hereinafter referred to as the bracket), a collision prevention plate 75, a height limit wheel 71 (which can also be called a height limit universal wheel), an adjustment pad 73, and a third fixing member 76 (preferably a quick pin). One end of the bracket is hinged to the front height adjustment mount of the cutting panel via a rotating shaft sleeve assembly and can rotate around the rotating shaft sleeve assembly. The other end is fixed in the pin hole group of the rear mount via a quick pin. Since the supporting wheels mounted on it are always in contact with the ground, when the quick pin passes through the bracket and is inserted into different hole positions on the front mount, the cutting panel can have different relative heights relative to the height limit universal wheel, thereby enabling the blade to obtain different ground clearances. At the same time, by increasing or decreasing the adjustment pads installed between the height limit universal wheel and the bracket, different ground clearances can be further obtained. In addition, the wear-resistant collision prevention plate installed in front of the bracket can effectively relieve the impact and wear of the crops in front on the bracket and the overall cutting platform during the operation of the cutting platform, and improve the service life.

[0080] Embodiment 2

[0081] See Figures 5 - 18 , the present invention also provides a modular intelligent trolley, including:

[0082] A walking drive module 31, such as Figure 8 , including a drive main body 311. A connection component for connecting functional modules is provided at the first end of the drive main body 311. At least one guide rail 312 is provided at the second end of the drive main body 311, and a foot support component 313 for supporting the drive main body is also provided on the drive main body. A drive reduction system 314 for driving the drive main body to walk is further provided on the drive main body;

[0083] A power module 32, such as Figure 9 , including a walking frame 321 and an energy pack 322 provided on the walking frame. At least one pulley 323 capable of sliding on the guide rail is provided at the first end of the power module; such as Figure 10 , walking wheels 326 are provided on both sides of the walking frame 321. The walking wheels cooperate with the drive wheels on the drive main body to realize the walking and transfer of the trolley;

[0084] A first quick-release component for connecting the walking drive module and the power module, such as Figure 11 , the first quick-release component includes a locking member 331 and a locking pin 332. Correspondingly, at least one first through hole and at least one first pin hole are provided at the second end of the drive main body. At least one second through hole cooperating with the first through hole and at least one second pin hole cooperating with the first pin hole are provided at the first end of the walking frame;

[0085] When the pulley is slid along the guide rail to the first position, the first through hole corresponds to the second through hole, the first pin hole corresponds to the second pin hole, the locking pin is passed through the first pin hole and the second pin hole in sequence, and the locking piece is passed through the first through hole and the second through hole in sequence, so that the travel drive module and the power module are quickly connected.

[0086] Specifically, the driving and deceleration systems are two independent motor deceleration driving systems, which can realize differential in-situ steering and can turn on the parking judgment after the whole vehicle is powered off, so as to prevent slipping on sloped roads; the front ends of the walking driving module 31 and the power module 32 are quickly combined into a main vehicle body through the first quick-release assembly. A connecting assembly is arranged in front of the walking driving module, which can quickly mount a mowing platform, a transport cart, a spraying platform, a micro-tillage platform, etc. to realize different operations, and according to the operation requirements, the mounting module can float with the terrain during the working process, quickly flip during maintenance, and lift and fold during transportation. In addition, the power module in the present application is connected to the walking driving module in a quick-release manner, which can easily and quickly replace the power source that matches the power required by the working platform, see Figures 24 - 26 , gives examples of three different power sources, including pure electric small energy battery, large energy battery and hybrid extended range battery, to adapt to different working platforms. During the transfer process, the walking frame can protect the power source to prevent the power source from being bumped during the transfer process, and the wheels on the driving frame make the transfer process more labor-saving.

[0087] In some embodiments, the first quick-release assembly also includes at least one lock, and the lock includes a first buckle arranged at the second end of the driving body, and a second buckle arranged on the walking frame; when the pulley slides to the first position along the guide rail, the first buckle is pressed, and the first buckle is buckled with the second buckle, so that the walking drive module and the power module are quickly connected.

[0088] Exemplarily, the first quick-release assembly includes a quick lock, a quick-release pin (i.e., a locking pin), a lifting ring stop bolt (i.e., a locking member), a guide pulley, and a universal ball. The above components cooperate with each other to quickly disassemble the travel drive module and the power module. Further, when the power module needs to be disassembled, please refer to Figure 10 and Figure 11 First, unlock the lock, then unscrew the eyebolts on the left and right sides from the threaded holes of the walking frame, unscrew the other eye stop bolt from the pin holes on the guide rails on both sides, and pull out the quick-release pin from the pin hole of the drive body to release the connection. The guide pulley on the power module automatically slides out along the guide rail and is separated from the drive body with the help of the universal ball rolling. During the separation and disengagement process, the quick lock bolted to the walking frame is disengaged from the connecting pipe on the frame by its own elastic force, and the entire power pack assembly is transported by the traction handle.

[0089] Furthermore, as Figure 13 and Figure 14 , the quick latch includes a handle, a front fixing seat 3341, a pin shaft hinging the handle and the front fixing seat 3341, a pull rod fixed to the handle, and a rear fixing seat 3342. Among them, the front fixing seat 3341 is fixed to the driving main body 311, and the rear fixing seat 3342 is fixed to the walking frame 321. When disassembling, rotate the handle outward by 90° around its pin shaft to drive and release the pull rod from the locking hook of the rear fixing seat 3342. When clamping, operate in the reverse direction. After operating the handle to hook the pull rod to the locking hook of the rear fixing seat 3342, rotate the handle forward to fasten. If necessary, the pin shaft can penetrate the handle and the front fixing seat 3341 to lock the handle.

[0090] In some embodiments, the connection assembly includes a floating arm and an elastic member. Two ends of the elastic member are respectively connected to the driving main body and the functional module. The first end of the floating arm is rotatably connected to the driving main body, and the second end of the floating arm is detachably fixed to the functional module.

[0091] In other embodiments, the connection assembly includes a floating arm, a telescopic push rod, and a push rod support arm. The first end of the floating arm and the second end of the push rod support arm are respectively rotatably arranged on the driving main body. The first end of the push rod support arm is rotatably connected to the second end of the push rod. The first end of the push rod is fixed to the driving main body. A limiting portion for limiting the floating arm is arranged on the push rod support arm, and the limiting portion is located below the floating arm. When the push rod contracts, the push rod drives the push rod support arm to rotate around the driving main body in a first direction, and the limiting portion abuts against the floating arm, so that the push rod support arm can drive the floating arm to rise. When the push rod extends, the push rod drives the push rod support arm to rotate around the driving main body in a second direction, and the floating arm synchronously descends with the limiting portion. Among them, the first direction and the second direction are opposite. The connection assembly further includes an elastic member. Two ends of the elastic member are respectively connected to the driving main body and the functional module. The first end of the floating arm is rotatably connected to the driving main body, and the second end of the floating arm is detachably fixed to the functional module.

[0092] In some embodiments, there are two floating arms. The two floating arms are connected by a support rod. Correspondingly, there are two elastic members, two push rods, and two push rod support arms. The two floating arms are respectively connected to two ends of the support rod through spherical plain bearings. The two push rod support arms are connected by a connecting arm. A support rod is fixed to the connecting arm, and the other end of the support rod is rotatably connected to the driving main body.

[0093] Exemplarily, asFigures 16 - 18 , the floating assembly includes a floating arm 21, a floating spring (elastic member 24), a push rod 22, a push rod support arm 23, a support rod 233, a connecting arm 232, a base 25, and a spherical plain bearing 212. Two bases 25 are arranged symmetrically left and right, and the holes at their front and rear ends are bolted to the driving body, and the middle hole is used for hinging the floating arm 21 and the push rod support arm 23. Two floating arms 21 are arranged symmetrically and are connected together through the connecting arm 232. Joint bearings 212 are installed on both sides of the connecting arm 232 to realize the up and down micro-movement of the left and right floating arms. One end of the floating arm 21 is hinged to the middle hole of the base 25, and one end is connected to the mounting platform (such as a cutting platform) through a front pin hole (i.e., the first mounting hole) and an oval hole (i.e., the second mounting hole). When the mounting platform fluctuates with the terrain, it drives the floating arm 21 to rotate around its hinge point, realizing the floating of the mounting platform with the terrain. One end of the floating spring is hinged to the driving body, and the other end is hooked to the connecting chain (also known as a chain) of the mounting platform, playing an auxiliary supporting role for the floating arm, and the length of the chain hooking point can be adjusted according to the weight of the front mounting platform to achieve the auxiliary effect of different magnitudes of force. Two push rods 22 are also arranged symmetrically. One end is pinned to the driving body, and the other end is pinned to the push rod support arm 23. A part of the push rod support arm 23 straddles the left and right floating arms and is arranged below the left and right floating arms. Two limiting parts 231 (also known as grooves) are provided on the push rod support arm for limiting the left and right floating arms above it. One end of the push rod support arm 23 is pinned to the push rod 22, and the other end is hinged to the middle hole of the base. During the telescopic process of the push rod 22, it drives the push rod support arm 23 to rotate. A limiting groove 234 is also provided on it for limiting the left and right swing amplitude of the connecting arm 232. The push rod support arm 23 can rotate around the middle hole of the floating arm seat under the push of the push rod 22. When it rotates to a certain angle, it drives the left and right floating arms above it to rise and fall, thereby driving the overall lifting of the mounting platform. An installation seat hole is also provided on the push rod support arm for hinging the support rod 233. The other end of the support rod 233 is hinged to the driving body, playing an auxiliary and protective role for the push rod. The above structures cooperate with each other to complete the tool-free disassembly, passive floating, active lifting and folding of the mounting platform. It is convenient, fast, safe and efficient, and has high flexibility, applicability and machine utilization rate.

[0094] In some embodiments, the foot support assembly includes a support body, the first end of the support body is rotatably arranged at the second end of the driving body, and a reset member (preferably a torsion spring) is arranged at the first end of the support body; when the power module is installed at the second end of the walking driving module, the support body rotates along the first direction under the push of the power module, and when the pulley slides to the first position, the support body is parallel to the ground; when the power module is disassembled from the walking driving module, the support body resets under the action of the reset member, so that the second end of the support body abuts against the ground.

[0095] Exemplarily, as Figure 15 , the footrest assembly includes a support main body 3131, a return torsion spring (return member 3132), and a locking pin assembly. The locking pin assembly pins the return torsion spring and the support main body 3131 to the driving main body, and the return torsion spring is placed between the baffle of the driving main body and the upper folding surface 3133 of the support main body 3131. When the power module is separated from the walking driving module, the support main body 3131 rotates downward around the locking pin assembly under the action of the return torsion spring until it touches the ground, playing a supporting role for the walking driving module. When the power module is reinstalled, as the power module slides in, the front and rear cross braces will push against the upper folding surface 3133 of the support main body 3131, causing it to rotate upward around the locking pin assembly. When the power module is installed in place, the support main body 3131 retracts to a state parallel to the ground. This part supports and retracts during the quick disassembly and reinstallation of the walking driving module and the power module, making the device more stable, with a simple structure and convenient operation.

[0096] In some embodiments, a handle is further provided at the first end of the power module.

[0097] Exemplarily, refer to Figure 12 , the handle is connected to the front of the walking frame through a pin bolt assembly and can be elongated and rotated around the waist hole of the locking pin assembly. Specifically, the handle includes a primary handle 3241 and a secondary handle 3242. The secondary handle 3242 can rotate around the rod portion of the primary handle 3241 to extend the length of the handle for convenient operation.

[0098] In some embodiments, as Figure 9 , a first control module 325 is further provided on the power module. Exemplarily, the first control module 325 includes a main controller, an emergency stop and switch assembly box, a rear wire distribution box, a front wire distribution box, a walking drive controller, a camera assembly, a lighting assembly, and corresponding connection wire harnesses. All controls and wire distribution boxes are encapsulated and integrated into the corresponding assemblies, and the overall vehicle protection level reaches IP67, capable of meeting various complex and harsh working conditions. The wire distribution box is provided with multiple quick-connect waterproof expansion joints for convenient and quick replacement and function expansion. The design is simple, the maintenance and operation are convenient, the reliability is high, and the expandability is strong. In some other embodiments, the main controller, the emergency stop and switch assembly box, and the rear wire distribution box are assembled on the power module, and the front wire distribution box, the walking drive controller box, the camera assembly, and the lighting assembly are assembled on the walking drive module. When disassembling, only the power positive connector, power negative connector, and communication connector on the front wire distribution box need to be pulled out. The walking drive controller can detect the walking load in real time through a control strategy and adaptively control the power output, saving energy and being efficient. The camera assembly can detect the working conditions of the trolley in real time in the remote control or automatic navigation mode and transmit the picture back to assist the operator or the center in making decisions.

[0099] Embodiment III

[0100] The present utility model also provides a lawn mower equipped with a modular intelligent trolley. Refer to Figures 1 - 4 , the modular intelligent trolley 3 includes:

[0101] A walking drive module, including a drive main body. A connection component 2 for detachably connecting a functional module is provided at the first end of the drive main body. At least one guide rail is provided at the second end of the drive main body. A drive reduction system for driving the drive main body to walk is also provided on the drive main body;

[0102] A power module, including a walking frame and an energy pack arranged on the walking frame. At least one pulley capable of sliding on the guide rail is provided at the first end of the power module;

[0103] A first quick-release component for connecting the walking drive module and the power module. The first quick-release component includes a locking piece and a locking pin. Correspondingly, at least one first through hole and at least one first pin hole are provided at the second end of the drive main body. At least one second through hole matching the first through hole and at least one second pin hole matching the first pin hole are provided at the first end of the walking frame; when the pulley is slid along the guide rail to the first position, the first through hole and the second through hole are corresponding, the first pin hole and the second pin hole are corresponding, the locking pin is sequentially penetrated through the first pin hole and the second pin hole, and the locking piece is sequentially penetrated through the first through hole and the second through hole, so that the walking drive module and the power module are quickly detachably connected;

[0104] The lawn mower further includes a cutting panel 1 and a connecting bracket. A cutting cutter head is arranged on the cutting panel. The first end of the connecting bracket is fixedly connected to the upper surface of the cutting panel. The second end of the connecting bracket is quickly detachably connected to the connecting component through a second quick-release component;

[0105] The second quick-release component includes a first fixing member and a second fixing member. The connecting component is respectively provided with a first mounting hole and a second mounting hole. The second end of the connecting bracket is provided with a third mounting hole that mates with the first mounting hole and a fourth mounting hole that mates with the second mounting hole. There are at least two fourth mounting holes, and the multiple fourth mounting holes have different heights. When the second fixing member successively passes through the third mounting hole and the fourth mounting holes with different heights, the cutting plane has different heights. When the first fixing member passes through the first mounting hole and the third mounting hole, or when the second fixing member passes through the second mounting hole and the fourth mounting hole, the connecting bracket can rotate relative to the connecting component. When the first fixing member passes through the first mounting hole and the third mounting hole, and at the same time the second fixing member passes through the second mounting hole and the third mounting hole, the first fixing member and the second fixing member cooperate to fix the connecting bracket and the connecting component.

[0106] It should be noted that the cutting panel and the connecting bracket in this embodiment can refer to the specific structure of the cutting platform in Embodiment 1, and other structures in this cutting platform are also applicable to this embodiment. Similarly, the specific structure of the modular intelligent trolley in this embodiment can refer to the relevant description in Embodiment 2.

[0107] It should be noted that in this text, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without more limitations, an element defined by the statement "including a..." does not exclude the existence of another identical element in the process, method, article or device including that element.

[0108] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the purpose of the present invention and the scope protected by the claims. These all fall within the protection scope of the present invention.

Claims

1. An independent and quick-release cutting platform for a lawn mower, characterized in that: It includes a cutting panel, a connecting bracket and a height adjustment module. A cutting cutter head is respectively arranged on the cutting panel, and a second control module for controlling the operation of the cutting cutter head is provided. The first end of the connecting bracket is fixedly connected to the upper surface of the cutting panel, and the second end of the connecting bracket is detachably connected to the connecting component of the lawn mower. Among them, a first mounting hole and a second mounting hole are respectively arranged on the connecting component, and a third mounting hole matched with the first mounting hole and at least two fourth mounting holes with different heights and matched with the second mounting hole are arranged at the second end of the connecting bracket. When a first fixing member penetrates through the first mounting hole and the third mounting hole, or when a second fixing member penetrates through the second mounting hole and the fourth mounting hole, the connecting bracket can rotate relative to the connecting component; when the first fixing member penetrates through the first mounting hole and the third mounting hole, and at the same time the second fixing member penetrates through the second mounting hole and the fourth mounting hole, the first fixing member and the second fixing member cooperate to fix the connecting bracket and the connecting component. The height adjustment module includes a height adjustment bracket. A height limiting wheel is arranged on the first side of the height adjustment bracket. The second side of the height adjustment bracket is rotatably connected to the cutting panel. At least two fifth mounting holes with different heights are arranged between the first side and the second side of the height adjustment bracket, and a sixth mounting hole matched with the fifth mounting hole is arranged on the cutting panel; or at least two sixth mounting holes with different heights are arranged on the cutting panel, and a fifth mounting hole matched with the sixth mounting hole is arranged on the height adjustment bracket. When a third fixing member penetrates through the fifth mounting hole and the sixth mounting hole, the cutting panel and the height adjustment bracket are fixed.

2. The independent quick-release cutting platform for a lawn mower according to claim 1, wherein: An adjustable-length connecting chain is arranged on the connecting bracket. One end of the connecting chain is connected to the connecting bracket, and the other end is detachably connected to an elastic member of the connecting component.

3. An independent quick-release cutting platform for a lawn mower according to claim 1, characterized in that: A height adjustment pad is arranged between the height limiting wheel and the height adjustment bracket.

4. An independent quick-release cutting platform for a lawn mower according to claim 1, characterized in that: The cutting cutter head includes a cutter head main body. A bent cutter head and a blade are rotatably arranged at the bottom of the cutter head main body in sequence from top to bottom. A driving device for driving the bent cutter head and the blade to rotate is arranged on the cutter head main body.

5. An independent quick-release cutting platform for a lawn mower according to claim 4, characterized in that: An installation space is arranged inside the cutting panel. A grass guard plate matched with the cutting cutter head is installed in the installation space. The grass guard plate and the inner wall of the cutting panel cooperate to form a grass guiding channel. One side of the cutting end of the blade curls towards the bent cutter head to form a folded corner part. The acute angle between the plane where the bent cutter head and the blade are located is 55°-80°.

6. The independent quick-release cutting platform for a lawn mower according to claim 4, characterized in that: A first through hole is arranged on the bent cutter head, and a second through hole matched with the first through hole is arranged on the blade. The bent cutter head and the blade are connected by bolts. The bolts shrink from the head to the end direction towards the central axis direction of the bolts to respectively form a first step and a second step twice. When the bolt sequentially passes through the second through-hole and the first through-hole, the blade and the bent cutter head are respectively located on the first step and the second step, so that when the resistance received by the blade is less than or equal to the first force, the blade and the bent cutter head rotate synchronously, and when the resistance received by the blade is greater than the first force, the blade can rotate relative to the bent cutter head.

7. An independent quick-release cutting platform for a lawn mower according to claim 1, characterized in that: Wear-resistant plates are provided on both sides of the cutting panel, a front protection baffle and a rear protection baffle are respectively provided at the front end and the rear end of the cutting panel, a support wheel is provided at the rear end of the cutting panel, and the rear protection baffle covers the support wheel.

8. The independent quick-release cutting platform for a lawn mower according to claim 1, characterized in that: Two connection brackets are provided, and the two connection brackets are connected and fixed to the cutting panel through an intermediate bracket.

9. The independent quick-release cutting platform for a lawn mower according to claim 1, wherein: A front mounting seat and a rear mounting seat are respectively provided on the upper surface of the cutting panel, the sixth mounting hole is provided on the front mounting seat, and the second side of the height adjustment bracket is rotatably arranged on the rear mounting seat through a rotary shaft sleeve.

10. The independent quick-release cutting platform for a lawn mower according to claim 1, wherein: A collision prevention plate is provided at the front end of the height adjustment bracket.

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