A double cutterhead coordinated lifting weeding machine

Abstract

This utility model discloses a dual-blade-disc coordinated lifting weeding machine, belonging to the field of agricultural machinery and equipment technology. The weeding machine includes a frame, a blade disc assembly, and a lifting adjustment device. The blade disc assembly has main and auxiliary blade disc components. The main blade disc assembly is fixed to the front end of the frame, and the auxiliary blade disc assembly is movably disposed to its side. The lifting adjustment device consists of first, second, and third adjustment mechanisms, used to adjust the height of the main blade disc and the height and angle of the auxiliary blade disc, respectively. The first adjustment mechanism adjusts the frame height through a front wheel assembly, a positioning block, and a lever; the second adjustment mechanism adjusts the height of the auxiliary blade disc assembly using a secondary wheel assembly, a locking assembly, and a positioning plate; the third adjustment mechanism changes the angle of the auxiliary blade disc assembly using a pull rod assembly and a pull line. Compared with existing technologies, this weeding machine achieves efficient weeding, improves equipment adaptability, and is easy to operate, effectively solving the technical problems of traditional weeding machines and meeting the diversified and efficient weeding needs of modern agriculture.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery and equipment technology, specifically to a double-blade-disc coordinated lifting weed cutter. Background Technology

[0002] In modern agricultural production, weeding is a crucial step in ensuring healthy crop growth and increasing yield. Currently, most mainstream weeders on the market use a single-disc blade structure, which has revealed many problems in practical applications and is difficult to meet the diverse production needs of modern agriculture.

[0003] In terms of coverage, single-disc weeders have limited coverage areas. When weeding large areas of farmland, they need to be run repeatedly, which not only consumes a lot of time and energy but also leads to low weeding efficiency, making it difficult to adapt to the pace of large-scale agricultural production. More importantly, single-disc weeders have obvious blind spots. Due to their simple structure, they cannot effectively remove weeds in the outer edges of field ridges and other marginal areas. Weeds growing vigorously on the outer edges of field ridges not only compete with crops for nutrients but also easily harbor pests, affecting the crop growth environment. Existing single-disc weeders are powerless in this regard, making these areas "dead zones" for weeding operations.

[0004] Existing weed cutters also have shortcomings in terms of blade height adjustment. Some weed cutters have a fixed blade height, which cannot adapt to the operational needs of hilly and mountainous areas. When used in farmland with complex terrain, either the chassis is damaged due to collision with the ground because the blade is too low, or it cannot effectively remove weeds because the blade is too high. Some weed cutters that do have height adjustment functions have complicated and cumbersome adjustment methods, requiring the use of special tools. Moreover, the adjustment accuracy is low and the time is long. It is difficult to adjust the working height of the blade in real time and flexibly according to different terrains and weed distribution, resulting in a significant reduction in weeding effect.

[0005] In summary, existing single-disc weeders suffer from serious deficiencies in weeding coverage, weeding in special areas, and disc height adjustment due to their simple structure. These deficiencies greatly restrict the improvement of agricultural production efficiency and quality, and there is an urgent need to develop a new type of weeder to solve these problems. Utility Model Content

[0006] This utility model aims to provide a dual-disc coordinated lifting weed cutter, addressing the technical challenges of existing single-disc weed cutters, such as small operating area, difficulty in weeding edge areas like field ridges, and inflexible adjustment of the disc height. By designing a main and auxiliary dual-disc coordinated operating structure, the weeding range is expanded, effectively clearing weeds from the outer edges of field ridges. Simultaneously, an innovative three-stage adjustment mechanism is constructed. The first adjustment mechanism allows for overall frame height adjustment to adapt to complex terrain; the second adjustment mechanism precisely controls the overall height of the auxiliary disc from the ground; and the third adjustment mechanism flexibly adjusts the angle of the auxiliary disc. This comprehensively improves the equipment's operating efficiency and adaptability in different terrains and weed environments, meeting the diverse and efficient weeding needs of modern agriculture.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A dual-blade-disc coordinated lifting weed cutter includes a frame, a blade disc assembly, and a lifting adjustment device;

[0009] The cutter head device includes a main cutter head assembly and a secondary cutter head assembly;

[0010] The main cutter head assembly and the auxiliary cutter head assembly are mounted on the frame. The main cutter head assembly is fixedly mounted near the front end of the frame, and the auxiliary cutter head assembly is movably mounted on one side of the main cutter head assembly.

[0011] The lifting and adjusting device includes a first adjusting mechanism, a second adjusting mechanism, and a third adjusting mechanism;

[0012] The first adjustment mechanism is located at the front end of the frame and is used to adjust the overall height of the frame above the ground. The second adjustment mechanism is located on the secondary cutter head assembly and is used to adjust the overall height of the secondary cutter head assembly relative to the main cutter head assembly above the ground. The third adjustment mechanism is located on the frame and connected to the secondary cutter head assembly and is used to adjust the vertical angle of the secondary cutter head assembly.

[0013] As a further improvement to the above technical solution, the first adjustment mechanism includes a front wheel assembly, a positioning block, and a lever;

[0014] The front wheel assembly is mounted on the frame and is movably mounted near the front end of the main cutter head assembly. The positioning block is fixed to one side of the frame. One end of the lever is hinged to the front wheel assembly, and the other end of the lever rotates around the hinge point and engages with the positioning block.

[0015] As a further improvement to the above technical solution, the second adjustment mechanism includes a secondary wheel assembly, a locking assembly, and a positioning plate;

[0016] The auxiliary wheel assembly is mounted on the auxiliary cutter head assembly and is movably positioned near the front end of the auxiliary cutter head assembly. The locking assembly is located on the top of the auxiliary wheel assembly and is used to lock the auxiliary wheel assembly after it has been adjusted to a suitable height. The positioning plate is fixed to the upper surface of the auxiliary wheel assembly and has several positioning holes. The locking assembly cooperates with the positioning holes to adjust the height of the auxiliary wheel assembly.

[0017] As a further improvement to the above technical solution, the secondary cutter head assembly is provided with a limiting plate, which is fixedly disposed against the upper surface of the secondary cutter head assembly.

[0018] As a further improvement to the above technical solution, the third adjustment mechanism includes a pull rod assembly and a pull wire;

[0019] The pull rod assembly is mounted on the frame and is located near the handle of the frame; one end of the pull cable is connected to the pull rod assembly, and the other end of the pull cable is fixedly connected to the limiting plate.

[0020] As a further improvement to the above technical solution, the front wheel assembly includes a front wheel and a front wheel bracket;

[0021] The front wheel is mounted on the front wheel bracket, which is mounted on the frame and is movably positioned near the front end of the main cutter head assembly; one end of the lever is hinged to the top of the front wheel bracket.

[0022] As a further improvement to the above technical solution, the auxiliary wheel assembly includes an auxiliary wheel and an auxiliary wheel bracket;

[0023] The auxiliary wheel is mounted on the auxiliary wheel bracket, which is mounted on the auxiliary cutter head assembly. The auxiliary wheel bracket is movably positioned near the front end of the auxiliary cutter head assembly. The locking component is positioned near the top of the auxiliary wheel bracket.

[0024] As a further improvement to the above technical solution, the pull rod assembly includes a pull rod and a positioning box;

[0025] The pull rod is mounted on the positioning box, which has several positioning holes, and the pull rod is connected to one end of the pull wire.

[0026] As a further improvement to the above technical solution, the positioning block is provided with a plurality of positioning grooves, which are evenly distributed along the height direction of the positioning block, and the size of the positioning grooves is adapted to the lever.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] I. Highly Efficient Weed Control and Expanded Coverage: By adopting a dual-disc weeding structure with primary and secondary blades working in tandem, the coverage area per operation is significantly increased compared to traditional single-disc weeders, reducing the number of repeated runs and significantly improving weed control efficiency in large areas of farmland. Simultaneously, the secondary blade is specifically designed for weeding along field edges and other marginal areas, effectively eliminating blind spots and ensuring that weeds are thoroughly cleared from all areas of the farmland, creating a favorable environment for crop growth.

[0029] II. Flexible Adjustment for Complex Environments: The first adjustment mechanism allows for easy adjustment of the overall height of the frame above the ground, thereby adjusting the height of the main blade assembly. This enables the weeder to operate freely in hilly and mountainous terrains, avoiding chassis collisions and damage, while ensuring the blade is at the appropriate weeding height. The second adjustment mechanism precisely controls the overall height of the secondary blade above the ground, allowing for flexible adjustment based on weed heights for efficient weeding. The third adjustment mechanism flexibly adjusts the angle of the secondary blade to adapt to different slopes and weed growth directions, comprehensively enhancing the equipment's adaptability to complex terrains and diverse weed environments.

[0030] Third, it is easy to operate and reduces labor intensity: The adjustment mechanisms are ingeniously designed and the operation process is simple and easy to understand. No special tools are needed. Operators can quickly adjust the height and angle of the main cutter head and the auxiliary cutter head, which greatly reduces labor intensity and improves the convenience and efficiency of operation. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 A top view of the assembly of the dual-blade disc coordinated lifting weed cutter provided by this utility model;

[0033] Figure 2 A three-dimensional schematic diagram of the dual-blade disc coordinated lifting weed cutter assembly provided by this utility model;

[0034] Figure 3 A bottom view of the dual-blade disc coordinated lifting weed cutter provided by this utility model;

[0035] Figure 4 A schematic diagram of the first adjustment mechanism and the frame assembly provided by this utility model;

[0036] Figure 5 A schematic diagram of the positioning block structure provided by this utility model;

[0037] Figure 6 This is a schematic diagram of the assembly of the second adjustment mechanism and the auxiliary cutter head assembly provided by this utility model;

[0038] Figure 7 A schematic diagram of the positioning plate structure provided by this utility model;

[0039] Figure 8 A schematic diagram of the third adjustment mechanism provided by this utility model;

[0040] Figure 9 A schematic diagram showing the connection between the pull wire and the limiting plate on the secondary cutter head assembly provided by this utility model;

[0041] Explanation of reference numerals in the attached figures;

[0042] 1-Frame; 2-Cutter head assembly; 21-Main cutter head assembly; 22-Secondary cutter head assembly; 221-Limit plate; 3-Lifting and adjusting device; 31-First adjusting mechanism; 311-Front wheel assembly; 311a-Front wheel; 311b-Front wheel bracket; 312-Positioning block; 312a-Positioning groove; 313-Lever; 32-Second adjusting mechanism; 321-Secondary wheel assembly; 321a-Secondary wheel; 321b-Secondary wheel bracket; 322-Locking assembly; 323-Positioning plate; 323a-Positioning hole; 33-Third adjusting mechanism; 331-Pull rod assembly; 331a-Pull rod; 331b-Positioning box; 332-Pull cable. Detailed Implementation

[0043] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] Example 1

[0049] like Figures 1 to 3 As shown, a dual-blade-disc coordinated lifting weed cutter includes a frame 1, a blade disc device 2, and a lifting adjustment device 3;

[0050] The cutter head device 2 includes a main cutter head assembly 21 and a secondary cutter head assembly 22;

[0051] The main cutter head assembly 21 and the secondary cutter head assembly 22 are mounted on the frame 1. The main cutter head assembly 21 is fixedly mounted near the front end of the frame 1, and the secondary cutter head assembly 22 is movably mounted near the side of the main cutter head assembly 21.

[0052] The lifting adjustment device 3 includes a first adjustment mechanism 31, a second adjustment mechanism 32 and a third adjustment mechanism 33;

[0053] The first adjustment mechanism 31 is located at the front end of the frame 1 and is used to adjust the overall height of the frame 1 above the ground. The second adjustment mechanism 32 is located on the secondary cutter head assembly 22 and is used to adjust the height difference between the secondary cutter head assembly 22 and the main cutter head assembly 21. The third adjustment mechanism 33 is located on the frame 1 and is connected to the secondary cutter head assembly 22 and is used to adjust the vertical angle of the secondary cutter head assembly 22.

[0054] The dual-disc coordinated lifting weed cutter, based on a frame 1, is equipped with a disc device 2 consisting of a main disc assembly 21 fixed to the front of the frame 1 and a secondary disc assembly 22 movably disposed on its side. It also features a lifting adjustment device 3 including first, second, and third adjustment mechanisms. During operation, the main and secondary discs work together, effectively expanding the coverage area of ​​a single operation. Compared to traditional single-disc weed cutters, this significantly reduces the number of repetitive runs, greatly improving the efficiency of large-area weeding operations and meeting the needs of large-scale agricultural production. The first adjustment mechanism 31, located at the front of the frame 1, allows for flexible adjustment of the overall height of the frame 1 above the ground, thereby adjusting the height of the main disc assembly 21. This easily adapts to complex terrains such as hills and mountains, overcoming the drawbacks of some existing weed cutters with fixed or complex height adjustments. The second adjustment mechanism 32, installed on the secondary disc assembly 22, allows for precise adjustment of the secondary disc assembly. The height of the disc assembly 22 above the ground is adjusted by the third adjustment mechanism 33, which is connected to the secondary blade disc assembly 22. This allows for flexible adjustment of the vertical angle of the secondary blade disc assembly 22. The combination of these two mechanisms enables the weeder to handle weeds of varying heights and types, solving the problems of limited functionality and incomplete weeding in existing weeders. Furthermore, the adjustment mechanisms are rationally designed and easy to operate, requiring no special tools. They facilitate real-time and flexible adjustments based on different terrains and weed distribution. The coordinated operation of the dual blade discs effectively eliminates blind spots, comprehensively ensuring weeding effectiveness and agricultural production quality, and greatly enhancing the adaptability and practicality of the equipment.

[0055] like Figures 4 to 5 As shown, specifically, the first adjustment mechanism 31 includes a front wheel assembly 311, a positioning block 312, and a lever 313;

[0056] The front wheel assembly 311 is mounted on the frame 1. The front wheel assembly 311 is movably mounted near the front end of the main cutter head assembly 21. The positioning block 312 is fixed on one side of the frame 1. One end of the lever 313 is hinged to the front wheel assembly 311, and the other end of the lever 313 rotates around the hinge point and engages with the positioning block 312.

[0057] The front wheel assembly 311 is movably mounted on the front end of the main cutter head assembly 21 on the frame 1, making the height of the front end of the frame 1 adjustable. The operator simply rotates lever 313, causing one end to rotate around its hinge point with the front wheel assembly 311, while the other end disengages from or engages with the positioning block 312. This allows for easy lifting or lowering of the front end of the frame 1, moving the front wheel assembly 311 up and down, thereby changing the overall height of the frame 1. When operating in hilly or mountainous areas with significant terrain undulations, the frame 1 can be raised to effectively prevent collisions between the weeder chassis and ground obstacles, ensuring safe operation. Conversely, when operating on flat terrain, appropriately lowering the height of the frame 1 enhances the weeder's stability and ensures the accuracy of the cutter head operation.

[0058] like Figures 6 to 7 As shown, specifically, the second adjustment mechanism 32 includes a secondary wheel assembly 321, a locking assembly 322, and a positioning plate 323;

[0059] The auxiliary wheel assembly 321 is mounted on the auxiliary cutter head assembly 22. The auxiliary wheel assembly 321 is movably mounted near the front end of the auxiliary cutter head assembly 22. The locking assembly 322 is mounted on the top of the auxiliary wheel assembly 321 and is used to lock the auxiliary wheel assembly 321 after it is adjusted to a suitable height. The positioning plate 323 is fixed on the upper surface of the auxiliary wheel assembly 321. The positioning plate 323 is provided with a plurality of positioning holes 323a. The locking assembly 322 cooperates with the positioning holes 323a to adjust the height position of the auxiliary wheel assembly 321.

[0060] The second adjustment mechanism 32, through the close cooperation of the auxiliary wheel assembly 321, locking assembly 322, and positioning plate 323, achieves precise and convenient adjustment of the overall height of the auxiliary cutter head assembly 22 off the ground. The auxiliary wheel assembly 321 is movably mounted at the front end of the auxiliary cutter head assembly 23. Operators can easily move the auxiliary wheel assembly 321 up and down through simple manual operation, thereby flexibly adjusting the height position of the auxiliary cutter head assembly 321. When dealing with weeds on the outer side of the field ridge, if the ridge is high and the weeds are in a special position, the auxiliary cutter head assembly 321 can be raised to reach and remove the weeds; if the weeds are relatively low, the height of the auxiliary cutter head assembly 321 can be lowered to ensure that weeding is thorough without excessively damaging the ground. The positioning holes 323a evenly distributed on the positioning plate 323 cooperate with the locking component 322. When the auxiliary wheel component 321 is adjusted to a suitable height, the locking component 322 can be quickly inserted into the corresponding positioning hole 323a to firmly lock the auxiliary wheel component 321, preventing it from shifting in height due to vibration or other factors during weeding operations, and ensuring that the auxiliary cutter head component 321 is always at a stable and accurate working height.

[0061] like Figures 8 to 9 As shown, specifically, the secondary cutter head assembly 22 is provided with a limiting plate 221, which is fixedly set against the upper surface of the secondary cutter head assembly 22.

[0062] The third adjustment mechanism 33 includes a pull rod assembly 331 and a pull cable 332;

[0063] The pull rod assembly 331 is mounted on the frame 1 and is located near the handle of the frame 1; one end of the pull wire 332 is connected to the pull rod assembly 331 and the other end of the pull wire 332 is fixedly connected to the limiting plate 221.

[0064] The limiting plate 221 fixed on the secondary cutter head assembly 22 works in conjunction with the pull rod assembly 331 and pull cable 332 of the third adjustment mechanism 33 to form a precise and efficient angle adjustment system. When the operator pulls the pull rod assembly 331 located on the handle of the frame 1, the pull cable 332 immediately shifts, precisely transmitting the pulling force to the limiting plate 221. Thanks to the stable connection between the limiting plate 221 and the secondary cutter head assembly 22, the secondary cutter head assembly 22 rotates flexibly around the hinge point, thus achieving precise vertical angle adjustment within a wide range. Whether it's sloping weeds on the outside of the field ridge or weeds growing on steep or gentle slopes, this system can respond quickly, adjusting the secondary cutter head assembly 22 to the optimal working angle and effectively eliminating blind spots in weeding. Meanwhile, the limiting plate 221 plays a key guiding and limiting role in the adjustment process, ensuring that the angle adjustment of the secondary blade assembly 22 is stable and accurate, avoiding over-adjustment or shaking. With the locking function of the pull rod assembly 331, the secondary blade assembly can be firmly locked at the required angle, ensuring the continuity and efficiency of weeding operations, and greatly improving the adaptability and weeding effect of the weeder in complex terrain and special areas.

[0065] Specifically, the front wheel assembly 311 includes a front wheel 311a and a front wheel bracket 311b;

[0066] The front wheel 311a is mounted on the front wheel bracket 311b, the front wheel bracket 311b is mounted on the frame 1, and the front wheel bracket 311b is movably mounted near the front end of the main cutter head assembly 21; one end of the lever 313 is hinged to the top of the front wheel bracket 311b.

[0067] The front wheel 311a is mounted on the front wheel bracket 311b, which is movably positioned at the front end of the main cutter head assembly 21 of the frame 1, creating a movable base structure for adjusting the height of the frame 1. When the operator rotates the lever 313, which is hinged to the top of the front wheel bracket 311, the lever 313 rotates around the hinge point, causing the front wheel bracket 311b to move up and down, thereby changing the height of the front end of the frame 1 and adjusting the height of the main cutter head assembly 21 off the ground.

[0068] Specifically, the auxiliary wheel assembly 321 includes an auxiliary wheel 321a and an auxiliary wheel bracket 321b;

[0069] The auxiliary wheel 321a is mounted on the auxiliary wheel bracket 321b, which is mounted on the auxiliary cutter head assembly 22. The auxiliary wheel bracket 321b is movably mounted near the front end of the auxiliary cutter head assembly 22. The locking component 322 is mounted near the top of the auxiliary wheel bracket 321b.

[0070] The auxiliary wheel 321a is mounted on the auxiliary wheel bracket 321b, which is movably positioned at the front end of the secondary cutter head assembly 22. This structural design allows the operator to easily and manually move the auxiliary wheel bracket 321b up and down according to actual operational needs, thereby adjusting the height of the secondary cutter head assembly 22. Whether dealing with tall weeds on the outer edge of the field ridge or low-lying weeds close to the ground, the height of the secondary cutter head assembly 22 above the ground can be quickly and flexibly changed.

[0071] Specifically, the pull rod assembly 331 includes a pull rod 331a and a positioning box 331b;

[0072] The pull rod 331a is mounted on the positioning box 331b, which has several positioning holes. The pull rod 331a is connected to one end of the pull wire 332.

[0073] The pull rod assembly 331, through the ingenious design of the pull rod 331a and the positioning box 331b, provides precise, convenient, and stable technical support for the angle adjustment of the secondary cutter head assembly 22. The operator pulls the pull rod 331a, which is connected to the pull line 332, easily causing the pull line 332 to move, thereby pulling the upper limit plate 221 of the secondary cutter head assembly 22 and precisely adjusting the vertical angle of the secondary cutter head assembly 22 to conform to the weed growth patterns of complex terrains such as the outer edge of field ridges and slopes. The evenly distributed positioning holes on the positioning box 331b form a positioning fit with the pull rod 331a. Once the secondary cutter head assembly 22 is adjusted to the appropriate angle, simply inserting the pull rod 331a into the corresponding positioning hole quickly locks the angle of the secondary cutter head assembly 22, preventing it from shifting due to vibration, external forces, or other factors during operation. This design is not only simple to operate without the need for additional tools, but also enables precise multi-angle adjustment, effectively solving the problems of difficult adjustment of the secondary blade angle and poor stability when weeding in special areas by traditional weeders. It significantly improves the adaptability of weeders to complex terrain and diverse weed environments, ensuring efficient and stable weeding operations.

[0074] Specifically, the positioning block 312 is provided with a plurality of positioning grooves 312a, which are evenly distributed along the height direction of the positioning block 312, and the size of the positioning grooves 312a is adapted to the lever 313.

[0075] The positioning slots 312a evenly distributed on the positioning block can achieve precise locking of different height levels, enabling the weeder to quickly adapt to diverse terrain environments, greatly improving the applicability and efficiency of the equipment in different operating scenarios, and solving the technical problems of inconvenient height adjustment and difficulty in adapting to complex terrain of existing weeders.

[0076] In this embodiment, the locking component 322 is a conventional technology in this area and will not be described in detail.

[0077] In this embodiment, the main cutter head assembly 21 and the secondary cutter head assembly 22 are driven by a spline shaft and a spline sleeve, and can freely extend and retract according to the angle adjustment of the third adjustment mechanism 33.

[0078] Working principle of this utility model:

[0079] 1. Overall Height Adjustment of the Frame: The overall height of the frame 1 can be flexibly adjusted by operating the first adjustment mechanism 31 located at the front end of the frame 1. Specifically, by rotating the lever 313 hinged to the top of the front wheel bracket 311b, one end of the lever 313 rotates around the hinge point and disengages from the positioning groove 312a of the positioning block 312. At this time, the front end of the frame 1 can be manually lifted or pressed down, causing the front wheel bracket 311b to move up and down (the front wheel rises and falls synchronously with the bracket 311b). After adjusting to the target height, the other end of the lever 313 is inserted into the positioning groove 312a of the corresponding height in the positioning block 312. The height of the frame 1 is locked by the engagement of the positioning groove 312a and the lever 313. This process realizes the overall height adjustment of the main cutter head assembly 21 along with the frame 1.

[0080] 2. Adjustment of the height difference of the secondary cutter head: Manually move the secondary wheel bracket 321b up and down (the secondary wheel moves synchronously with the bracket 321b) to adjust the height of the secondary cutter head assembly 22. When the secondary wheel bracket 321b reaches the target height, insert the locking component 322 at the top into the corresponding positioning hole 323a on the positioning plate 323. Through the cooperation of the locking component 322 and the positioning hole 323a, the secondary wheel bracket 321b is firmly locked, thereby fixing the height of the secondary cutter head assembly 22.

[0081] III. Adjustment of the Sub-Cutter Head Angle; The third adjustment mechanism 33, through the linkage of the pull rod assembly 331 and the pull line 332, realizes the vertical angle adjustment of the sub-cutter head assembly 22. The operator pulls the pull rod 331a located on the handle of the frame 1, causing the pull line 332 to shift and pull the limiting plate 221 of the sub-cutter head assembly 22. Since the limiting plate 221 is fixedly connected to the sub-cutter head assembly 22, the pulling force is converted into a rotational torque around the hinge point on the sub-cutter head assembly, causing its angle to change. When adjusted to the desired angle (e.g., conforming to the outer slope of the field ridge or sloping weeds), the pull rod 331a is inserted into the corresponding positioning hole of the positioning box 331b to lock the sub-cutter head angle. This adjustment ensures that the sub-cutter head assembly 22 can handle complex terrain and weeds in the best posture, eliminating the blind spots of a single cutter head operation.

[0082] IV. Coordinated Operation of Main and Auxiliary Blade Discs: The main blade disc assembly 21 is fixed to the front end of the frame and is responsible for routine weeding over large areas of farmland; the auxiliary blade disc assembly 22 achieves flexible height and angle adjustment through the second and third adjustment mechanisms, specializing in targeting special locations such as the outer edges and corners of field ridges. The two are driven by a splined shaft and splined sleeve, ensuring stable power transmission of the auxiliary blade disc during angle adjustment, without jamming or disengagement. During operation, the main and auxiliary blade discs rotate synchronously, expanding the coverage area of ​​a single operation and reducing repetitive movement; the auxiliary blade disc, through precise adjustment, can conform to complex terrain contours, removing edge weeds that the main blade disc cannot reach, achieving all-around weeding.

[0083] V. Terrain and Weed Adaptability Logic: When the equipment enters different work areas, the operator first adjusts the frame height according to the terrain undulations using the first adjustment mechanism 31 to ensure chassis safety and main blade cutting accuracy. Then, based on the weed height, the second adjustment mechanism 32 sets the ground clearance of the secondary blade to avoid missing or over-cutting. Finally, for special areas such as the outer edge of the field or slopes, the third adjustment mechanism 33 adjusts the angle of the secondary blade to match the blades with the weed growth direction or terrain slope, achieving efficient cutting. The entire adjustment process requires no specialized tools and can be completed within minutes, significantly improving work efficiency and equipment adaptability.

[0084] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0085] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only used to help understand the method and core ideas of this utility model.

[0086] The above are merely preferred embodiments of this utility model. It should be noted that, due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principle of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered as protection of this utility model.

Claims

1. A dual deck coordinated lift mower characterized by: It includes a frame (1), a cutter head device (2), and a lifting and adjusting device (3); The cutter head device (2) includes a main cutter head assembly (21) and a secondary cutter head assembly (22). The main cutter head assembly (21) and the secondary cutter head assembly (22) are mounted on the frame (1). The main cutter head assembly (21) is fixedly mounted near the front end of the frame (1), and the secondary cutter head assembly (22) is movably mounted on one side of the main cutter head assembly (21). The lifting adjustment device (3) includes a first adjustment mechanism (31), a second adjustment mechanism (32) and a third adjustment mechanism (33); The first adjustment mechanism (31) is located at the front end of the frame (1) and is used to adjust the overall height of the frame (1) above the ground. The second adjustment mechanism (32) is located on the secondary cutter head assembly (22) and is used to adjust the overall height of the secondary cutter head assembly (22) above the ground. The third adjustment mechanism (33) is located on the frame (1) and is connected to the secondary cutter head assembly (22) and is used to adjust the vertical angle of the secondary cutter head assembly (22).

2. A dual cutterhead coordinated lift mower as claimed in claim 1 wherein: The first adjustment mechanism (31) includes a front wheel assembly (311), a positioning block (312), and a lever (313). The front wheel assembly (311) is mounted on the frame (1). The front wheel assembly (311) is movably mounted near the front end of the main cutter head assembly (21). The positioning block (312) is fixed on one side of the frame (1). One end of the lever (313) is hinged to the front wheel assembly (311), and the other end of the lever (313) rotates around the hinge point and engages with the positioning block (312).

3. A dual cutterhead coordinated lift mower as claimed in claim 1 wherein: The second adjustment mechanism (32) includes a secondary wheel assembly (321), a locking assembly (322), and a positioning plate (323). The auxiliary wheel assembly (321) is mounted on the auxiliary cutter head assembly (22). The auxiliary wheel assembly (321) is movably mounted near the front end of the auxiliary cutter head assembly (22). The locking assembly (322) is mounted on the top of the auxiliary wheel assembly (321) and is used to lock the auxiliary wheel assembly (321) after it is adjusted to a suitable height. The positioning plate (323) is fixed on the upper surface of the auxiliary wheel assembly (321). The positioning plate (323) is provided with a plurality of positioning holes (323a). The locking assembly (322) cooperates with the positioning holes (323a) to adjust the height position of the auxiliary wheel assembly (321).

4. A dual head coordinated lift mower as claimed in claim 3 wherein: The secondary cutter head assembly (22) is provided with a limiting plate (221), which is fixedly disposed against the upper surface of the secondary cutter head assembly (22).

5. A dual-blade disc coordinated lifting weed cutter according to claim 4, characterized in that: The third adjustment mechanism (33) includes a pull rod assembly (331) and a pull cable (332); The pull rod assembly (331) is mounted on the frame (1) and is located near the handle of the frame (1); one end of the pull wire (332) is connected to the pull rod assembly (331) and the other end of the pull wire (332) is fixedly connected to the limiting plate (221).

6. A dual-blade disc coordinated lifting weed cutter according to claim 2, characterized in that: The front wheel assembly (311) includes a front wheel (311a) and a front wheel bracket (311b); The front wheel (311a) is mounted on the front wheel bracket (311b), which is mounted on the frame (1). The front wheel bracket (311b) is movably mounted near the front end of the main cutter head assembly (21). One end of the lever (313) is hinged to the top of the front wheel bracket (311b).

7. A dual-blade disc coordinated lifting weed cutter according to claim 3, characterized in that: The auxiliary wheel assembly (321) includes an auxiliary wheel (321a) and an auxiliary wheel bracket (321b). The auxiliary wheel (321a) is mounted on the auxiliary wheel bracket (321b), the auxiliary wheel bracket (321b) is mounted on the auxiliary cutter head assembly (22), and the auxiliary wheel bracket (321b) is movably mounted near the front end of the auxiliary cutter head assembly (22); the locking component (322) is mounted near the top of the auxiliary wheel bracket (321b).

8. A dual-blade disc coordinated lifting weed cutter according to claim 5, characterized in that: The pull rod assembly (331) includes a pull rod (331a) and a positioning box (331b). The pull rod (331a) is mounted on the positioning box (331b), which has several positioning holes. The pull rod (331a) is connected to one end of the pull wire (332).

9. A dual-blade disc coordinated lifting weed cutter according to claim 2, characterized in that: The positioning block (312) is provided with a plurality of positioning grooves (312a), which are evenly distributed along the height direction of the positioning block (312), and the size of the positioning grooves (312a) is adapted to the lever (313).

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