A weeding machine with an automatic lifting type weeding knife protection frame

Abstract

The present application relates to the technical field of weeding machine, disclose a kind of weeding machine with automatic lifting type weeding tool protection frame, including main component, including support platform, support platform is fixed with fixed seat, fixed seat is fixed with hydraulic motor, and the output end of hydraulic motor is fixed with weeding piece;Adjusting assembly is arranged below fixed seat, including adjusting piece, including the slide bar fixed to the bottom of fixed seat, the surface of slide bar is slidably provided with support sleeve, rack is fixed in support sleeve, the bottom of fixed seat is fixed with protective sleeve, and the bottom of protective sleeve is fixed with sealing plate.The present application has beneficial effects as follows: by setting adjusting assembly, the height of cutting blade can be automatically adjusted when the weeding machine encounters immovable stones, so as to avoid the damage of cutting blade by stones, and when encountering small stones, the stones can be driven away by driving rod.

Description

Technical Field

[0001] This invention relates to the field of weeding machine technology, and in particular to a weeding machine with an automatic lifting weeding blade protective frame. Background Technology

[0002] In modern agriculture and landscaping, weeders are important pieces of machinery that effectively improve weeding efficiency and reduce labor costs. With the continuous improvement of agricultural scale and mechanization, large-scale machinery equipped with weeders for large-area weeding has become the mainstream trend. However, in actual working environments, weed-growing areas often have obstacles such as stones, including stones buried underground with only a portion exposed and stones placed on the ground. Existing weeding machines generally lack effective automatic obstacle avoidance functions when facing these stone obstacles. When the blades of the weeding machine collide with the stones, they are easily damaged, which not only increases the maintenance cost of the equipment, but also causes the operation to be interrupted due to frequent blade replacement, seriously affecting the weeding efficiency. If the blade damage is not detected in time, it will affect the weeding effect. Summary of the Invention

[0003] In view of the problems existing in the above-mentioned existing weeders with automatic lifting weeding blade protective frames, the present invention is proposed.

[0004] Therefore, the problem that this invention aims to solve is that existing weeders lack effective automatic obstacle avoidance functions.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a weeder with an automatic lifting weeding blade protective frame, which includes a main body component, including a support platform, a fixed seat fixed on the support platform, a hydraulic motor fixed on the fixed seat, and a weeding component fixed at the output end of the hydraulic motor; An adjustment assembly, disposed below the fixed base, includes an adjustment component and a slide rod fixed to the bottom of the fixed base. A support sleeve slides on the surface of the slide rod, and a rack is fixed inside the support sleeve. A protective sleeve is fixed to the bottom of the fixed base, and a sealing plate is fixed to the bottom of the protective sleeve. A support block is fixed inside the protective sleeve, and a support column is rotatably connected inside the support block. An adjustment gear is fixed to the surface of the support column, and the adjustment gear meshes with the rack.

[0006] As a preferred embodiment of the weeder with an automatic lifting weeding blade protective frame according to the present invention, the adjustment component further includes a detection component disposed on one side of the support platform, including a support seat fixed to one side of the support platform, a support frame fixed to one side of the support seat, and a support shaft fixed to the bottom of the support frame.

[0007] As a preferred embodiment of the weeder with an automatic lifting weeding blade protective frame according to the present invention, the detection component further includes a support ring fixed to the surface of the support shaft, a detection sleeve rotatably connected to the surface of the support ring, and a torsion spring provided between the support ring and the detection sleeve.

[0008] As a preferred embodiment of the weeder with an automatic lifting weeding blade protective frame according to the present invention, the detection component further includes a detection rod rotatably connected to the surface of the support shaft, a torsion spring is provided between the detection rod and the support shaft, and a through groove is provided inside the detection sleeve.

[0009] As a preferred embodiment of the weeder with an automatic lifting weeding blade protective frame according to the present invention, the detection component further includes a fixing rod fixed to the bottom of the support frame, a protective shell fixed to the end of the fixing rod, a first pulley fixed to the surface of the detection sleeve, and a second pulley fixed to the surface of the support column.

[0010] As a preferred embodiment of the weeder with an automatic lifting weeding blade protective frame according to the present invention, the adjusting component further includes a limiting member disposed on the surface of the protective sleeve, including a connecting seat fixed to the surface of the protective sleeve, a fixing sleeve fixed to the bottom of the connecting seat, a limiting rod sliding inside the fixing sleeve, a compression spring disposed at the end of the limiting rod, a locking tooth disposed at the other end of the limiting rod, a triangular plate fixed to the surface of the supporting sleeve, a locking groove disposed on the surface of the triangular plate, a driving column fixed to the surface of the limiting rod, and a sliding groove disposed on the surface of the fixing sleeve, the driving column sliding within the sliding groove.

[0011] As a preferred embodiment of the weeder with an automatic lifting weeding blade protective frame according to the present invention, the adjustment component further includes a reset component disposed on one side of the support platform, including a fixed frame fixed to one side of the support platform, the support shaft being fixed inside the fixed frame, the support shaft having a support ring, a detection sleeve and a detection rod disposed on its surface, the detection sleeve having a reset rod fixed on its surface, the reset rod having a moving groove disposed inside its surface, and the reset rod sliding on the surface of the connecting seat and the fixed sleeve.

[0012] As a preferred embodiment of the weeder with an automatic lifting weeding blade protective frame according to the present invention, the weeding component includes a drive sleeve that slides on the output end of the hydraulic motor, a drive block is fixed inside the drive sleeve, a limit groove is opened on the output end of the hydraulic motor, and the drive block slides in the limit groove.

[0013] As a preferred embodiment of the weeder with an automatic lifting weeding blade protective frame according to the present invention, the weeding component further includes a weeding disc fixed to the bottom of the drive sleeve, a cutting blade and a support disc fixed to the bottom of the weeding disc, a weeding rod and a positioning block hinged to the top of the weeding disc, and a counterweight fixed to one side of the weeding rod.

[0014] As a preferred embodiment of the weeder with an automatic lifting weeding blade protective frame according to the present invention, the main component further includes a support rod fixed to one side of the support platform, and a mounting base is fixed to one side of the support rod.

[0015] The beneficial effects of this invention are as follows: by setting an adjustment component, the height of the cutting blade can be automatically adjusted when the weeder encounters immovable stones, thereby avoiding damage to the cutting blade by the stones. When encountering small stones, the stones can be driven away by the removal rod. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a structural diagram of a weeder with an automatic lifting guard for the weeding blades.

[0017] Figure 2 For weeders with automatic lifting blade guards Figure 1 Enlarged view of the structure at point C.

[0018] Figure 3 This is a cross-sectional view of the support ring of a weeder with an automatic lifting weeding blade guard.

[0019] Figure 4 This is a side view of a weeder with an automatic lifting blade guard.

[0020] Figure 5 This is a partial structural diagram of the support shaft of a weeder with an automatic lifting weeding blade guard.

[0021] Figure 6 For weeders with automatic lifting blade guards Figure 5 Sectional view of the structure at point AA.

[0022] Figure 7 For weeders with automatic lifting blade guards Figure 6 Cross-sectional view of the structure at point D.

[0023] Figure 8 This is a structural diagram of the support sleeve for a weeder with an automatic lifting weeding blade guard.

[0024] Figure 9 This is a structural diagram of the testing kit for a weeder with an automatic lifting weeding blade guard.

[0025] Figure 10 For weeders with automatic lifting blade guards Figure 9 Cross-sectional view of the structure at point BB.

[0026] Figure 11 This is a cross-sectional view of the support column of a weeder with an automatic lifting weeding blade guard.

[0027] Figure 12 This is a cross-sectional view of the weeding disc of a weeding machine with an automatic lifting weeding blade guard.

[0028] Figure 13 This is a triangular plate structural diagram of a weeder with an automatic lifting weeding blade guard.

[0029] In the diagram: Main component 100; Support platform 101; Fixing base 102; Hydraulic motor 103; Weeding component 104; Drive sleeve 1041; Drive block 1042; Limiting groove 103-1; Weeding disc 1043; Cutting blade 1044; Support disc 1045; Weeding rod 1046; Positioning block 1047; Counterweight block 1048; Support rod 105; Mounting base 106; Adjustment component 200; Adjustment piece 201; Slide rod 2011; Support sleeve 2012; Rack 2013; Protective sleeve 2014; Sealing plate 2015; Support block 2016; Support column 2017; Adjusting gear 2018; Detection piece 20 2; Support base 2021; Support frame 2022; Support shaft 2023; Support ring 2024; Detection sleeve 2025; Detection rod 2026; Through groove 2025-1; Fixing rod 2027; Protective shell 2028; First pulley 2029; Second pulley 20210; Limiting component 203; Connecting seat 2031; Fixing sleeve 2032; Limiting rod 2033; Compression spring 2034; Clamping tooth 2033-1; Triangular plate 2035; Clamping groove 2035-1; Drive column 2036; Slide groove 2032-1; Reset component 204; Fixing frame 2041; Reset rod 2042; Moving groove 2042-1. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0033] Example 1, referring to Figures 1-7 This is the first embodiment of the present invention. This embodiment provides a weeder with an automatic lifting weeding blade protective frame. The weeder with an automatic lifting weeding blade protective frame includes a main body component 100, including a support platform 101. There are three fixed seats 102 fixed on the support platform 101. There are three fixed seats 102. There are three hydraulic motors 103 fixed on the fixed seats 102. Weeding components 104 are fixed at the output end of the hydraulic motors 103. Driven by the hydraulic motors 103, the weeding components 104 are made to work, thereby performing weeding operations. The hydraulic motors 103 are prior art, and their working principle should be clear to those skilled in the art.

[0034] Figure 4 The direction indicated by the middle arrow is the forward direction of the weed cutter. This invention is not applicable to vine or shrub weeds. An adjusting component 200, located below the fixed base 102, includes an adjusting element 201 and a sliding rod 2011 fixed to the bottom of the fixed base 102. Two sliding rods 2011 are arranged in a group, and a support sleeve 2012 slides on the surface of each sliding rod 2011. Supported by the two sliding rods 2011, the support sleeve 2012 can move stably up and down. A rack 2013 is fixed inside the support sleeve 2012. A protective sleeve 2014 is fixed to the bottom of the fixed base 102, and a sealing plate 2015 is fixed to the bottom of the protective sleeve 2014. The protective sleeve 2014 and the sealing plate 2015 prevent weeds from entering the protective sleeve. Inside the protective sleeve 2014, to improve the stability of the adjusting component 201, a support block 2016 is fixed inside the protective sleeve 2014. A support column 2017 is rotatably connected inside the support block 2016. An adjusting gear 2018 is fixed on the surface of the support column 2017. The adjusting gear 2018 meshes with the rack 2013. By rotating the adjusting gear 2018, the rack 2013 can be driven to move up and down, thereby adjusting the height of the support sleeve 2012. The weeding component 104 is rotatably connected inside the support sleeve 2012. When the support sleeve 2012 moves up and down, it can drive the weeding component 104 to move synchronously.

[0035] When a stone moves in front of the path of the weeding component 104, the support sleeve 2012 lifts the weeding component 104 to avoid the stone and prevent damage to the weeding component 104.

[0036] Specifically, the adjustment assembly 200 also includes a detection component 202 disposed on one side of the support platform 101, including a support base 2021 fixed to one side of the support platform 101, a support frame 2022 fixed to one side of the support base 2021, and three support bases 2021, which can stably provide support for the support shaft 2023. The support shaft 2023 is fixed to the bottom of the support frame 2022 and is used to provide support for the detection component 202.

[0037] Specifically, the detection component 202 also includes a support ring 2024 fixed to the surface of the support shaft 2023. A detection sleeve 2025 is rotatably connected to the surface of the support ring 2024. A torsion spring is provided between the support ring 2024 and the detection sleeve 2025. The torsion spring allows the detection sleeve 2025 to return to its original position after rotation.

[0038] Specifically, the detection component 202 also includes a detection rod 2026 rotatably connected to the surface of the support shaft 2023. A torsion spring is provided between the detection rod 2026 and the support shaft 2023. A protrusion is provided on the surface of the support shaft 2023. The protrusion slides inside the detection rod 2026 to limit the position of the detection rod 2026. In conjunction with the elastic force of the torsion spring between the detection rod 2026 and the support shaft 2023, the detection rod 2026 is positioned so that it can stably stay in the position shown in the figure. A through groove 2025-1 is provided inside the detection sleeve 2025, and the detection rod 2026 passes through the through groove 2025-1.

[0039] When a fixed stone appears in front of the path of the weeder, the detection rod 2026 slides over the stone and is pushed by the stone, causing the detection rod 2026 to deflect on the surface of the support shaft 2023, thereby driving the detection sleeve 2025 to rotate through the through groove 2025-1. The rotating detection sleeve 2025 can be reset by a torsion spring provided between it and the support ring 2024.

[0040] Specifically, the detection component 202 also includes a fixing rod 2027 fixed to the bottom of the support frame 2022. A protective shell 2028 is fixed to the end of the fixing rod 2027. A first pulley 2029 is fixed to the surface of the detection sleeve 2025, and a second pulley 20210 is fixed to the surface of the support column 2017. The first pulley 2029 and the second pulley 20210 are connected by a belt. The belt is a toothed belt to prevent slippage between the belt and the first pulley 2029 and the second pulley 20210. The protective shell 2028 is used to protect the transmission of the first pulley 2029 and the second pulley 20210, so that the first pulley 2029 and the second pulley 20210 can work stably.

[0041] Example 2, refer to Figures 2-13 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0042] Specifically, the adjustment assembly 200 also includes a limiting member 203 disposed on the surface of the protective sleeve 2014, including a connecting seat 2031 fixed to the surface of the protective sleeve 2014, a fixing sleeve 2032 fixed to the bottom of the connecting seat 2031, a limiting rod 2033 slidingly inside the fixing sleeve 2032, a compression spring 2034 disposed at the end of the limiting rod 2033, the compression spring 2034 being in a compressed state, and a locking tooth 2033-1 provided at the other end of the limiting rod 2033, supporting the sleeve. A triangular plate 2035 is fixed on the surface of the 2012. A slot 2035-1 is opened on the surface of the triangular plate 2035. A tooth 2033-1 is inserted into the slot 2035-1 to limit the position of the triangular plate 2035. A drive column 2036 is fixed on the surface of the limiting rod 2033. The drive column 2036 is located on both sides of the limiting rod 2033. A sliding groove 2032-1 is opened on the surface of the fixing sleeve 2032. The drive column 2036 slides in the sliding groove 2032-1.

[0043] When the support sleeve 2012 moves the weeding component 104 upward, it can simultaneously move the triangular plate 2035 upward, thereby pushing the limiting rod 2033, which in turn moves the limiting rod 2033 into the fixed sleeve 2032. At this time, the drive column 2036 slides in the slide groove 2032-1.

[0044] When it is necessary to release the limit rod 2033 from the triangular plate 2035, the drive column 2036 can be pulled to move the limit rod 2033 away from the triangular plate 2035, thereby causing the locking tooth 2033-1 to move out of the slot 2035-1.

[0045] Specifically, the adjustment assembly 200 also includes a reset component 204 disposed on one side of the support platform 101, including a fixing frame 2041 fixed to one side of the support platform 101. A support shaft 2023 is fixed inside the fixing frame 2041. A support ring 2024, a detection sleeve 2025, and a detection rod 2026 are disposed on the surface of the support shaft 2023. The working principle of the support ring 2024, the detection sleeve 2025, and the detection rod 2026 is the same as that in the detection component 202. A torsion spring is disposed between the detection rod 2026 and the support shaft 2023, and between the support ring 2024 and the detection sleeve 2025. A reset rod 2042 is fixed on the surface of the detection sleeve 2025. A moving groove 2042-1 is opened inside the reset rod 2042. The reset rod 2042 slides on the surface of the connecting seat 2031 and the fixing sleeve 2032 through the moving groove 2042-1 to drive the drive column 2036.

[0046] When the detection element 202 detects an immovable stone, the adjusting element 201 can move the weeding element 104 upward. After the weeding element 104 is moved, it is prevented from descending by the limiting element 203, so that the stone passes under the weeding element 104, thus avoiding damage to the weeding element 104. When the stone passes the detection rod 2026 on one side of the fixing frame 2041, it can drive the detection rod 2026 to deflect, thereby driving the detection sleeve 2025 to rotate, thereby causing the detection sleeve 2025 to drive the reset rod 2042 to deflect, thereby causing the reset rod 2042 to push the drive column 2036, thereby causing the drive column 2036 to drive the limiting rod 2033 away from the triangular plate 2035, thereby causing the locking tooth 2033-1 to move out of the locking slot 2035-1, thereby releasing the limiting of the triangular plate 2035, so that the weeding element 104 can fall down and reset again.

[0047] If multiple stones appear in the area between the two pairs of detection rods, the detection element 202 drives the adjustment element 201 to make the moving height of the weeding element 104 based on the highest stone. At this time, when the detection rod 2026 on one side of the fixing frame 2041 detects a stone with a lower height, the detection rod 2026 on the fixing frame 2041 drives the detection sleeve 2025 to deflect a smaller distance. At this time, when the detection sleeve 2025 drives the reset rod 2042 to move, it cannot make the reset rod 2042 move the drive column 2036 at this time, thus failing to release the limit on the weeding element 104.

[0048] When the detection rod 2026 on one side of the fixing frame 2041 detects the tallest stone, the detection sleeve 2025 deflects, which will cause the reset rod 2042 to move the drive column 2036. This causes the drive column 2036 to move the limit rod 2033 away from the triangular plate 2035, thereby causing the locking tooth 2033-1 to move out of the slot 2035-1, thus releasing the limit on the triangular plate 2035, allowing the weeding component 104 to fall down and reset again.

[0049] If there are low stones below the weeding component 104 at this time, they will obstruct the falling of the weeding component 104. At this time, the detection rod 2026 and detection sleeve 2025 on one side of the fixing frame 2041 have been reset, which can make the limiting rod 2033 limit the triangle plate 2035 again, thereby preventing the weeding component 104 from falling further.

[0050] Example 3, referring to Figures 1-13 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0051] Specifically, the weeding component 104 includes a drive sleeve 1041 that slides on the output end of the hydraulic motor 103. A drive block 1042 is fixed inside the drive sleeve 1041. A limit groove 103-1 is provided on the output end of the hydraulic motor 103. The drive block 1042 slides in the limit groove 103-1. By sliding the drive block 1042 in the limit groove 103-1, the drive sleeve 1041 and the output end of the hydraulic motor 103 will not rotate relative to each other. This allows the output end of the hydraulic motor 103 to drive the drive sleeve 1041 to rotate, thereby providing power for the operation of the weeding component 104. The drive sleeve 1041 is rotatably connected to the support sleeve 2012. When the support sleeve 2012 moves up and down, it can drive the drive sleeve 1041 to move up and down.

[0052] Specifically, the weeding component 104 also includes a weeding disc 1043 fixed to the bottom of the drive sleeve 1041. There are three weeding discs 1043, which are independently set, and each weeding disc 1043 is provided with an independent adjusting component 201, so that the height of the weeding disc 1043 can be adjusted individually. This ensures that when the weeding disc 1043 rises to avoid stones, it will not affect the normal operation of other weeding discs 1043, thus improving the working efficiency and adaptability of the weeding machine. The bottom of the weeding disc 1043 is fixed with a cutting blade 1044 and a support plate 1045. There are four cutting blades 1044 fixed to the bottom of each weeding disc 1043, which are arranged in a circle. The support plate 1045 is used to protect the weeding disc 1043 and the cutting blades 1044.

[0053] When the weeding component 104 falls back to its original position, if there are stones below it, the support plate 1045 will fall on top of the stones, thus protecting the cutting blade 1044 and the weeding disc 1043, stopping the weeding component 104 from falling. At this time, the triangular plate 2035 on one side of the support sleeve 2012 is limited by the limiting rod 2033, preventing the support sleeve 2012 from falling. As the weeder moves forward, when the stones move out of the range of the support plate 1045, the weeding component 104 will not fall because it is limited by the limiting rod 2033, thus preventing the stones from colliding with the cutting blade 1044 and protecting the cutting blade 1044. This continues until the detection rod 2026 on one side of the fixing frame 2041 detects the removal of the stones. At this time, the limiting rod 2033 can release the limiting of the weeding component 104, allowing the weeding disc 1043 to fall back to its initial position, enabling the cutting blade 1044 to operate normally.

[0054] The top of the weeding disc 1043 is hinged with a drive rod 1046 and a positioning block 1047. A counterweight 1048 is fixed to one side of the drive rod 1046. When the weeding disc 1043 rotates, the centrifugal force of the drive rod 1046 causes it to deflect, thereby moving the end of the drive rod 1046 outward from the weeding disc 1043. The positioning block 1047 provides limiting support for the drive rod 1046. At this time, the end of the drive rod 1046 is located on one side of the cutting blade 1044, which is used to protect the cutting blade 1044. When small stones are in front of the moving path of the cutting blade 1044, they can be knocked away by the drive rod 1046 to prevent damage to the cutting blade 1044. The setting of the counterweight 1048 enhances the ability of the drive rod 1046 to remove stones.

[0055] When the cutting blade 1044 cuts the weeds, the curved surface of the weed-removing rod 1046 allows the weeds to squeeze the rod, causing it to be pressed against the weeding disc 1043 without affecting the cutting blade 1044's cutting of the weeds. Since there are generally no weeds around the stones to push the rod, the rod can effectively remove the stones.

[0056] Specifically, the main component 100 also includes a support rod 105 fixed to one side of the support platform 101, and a mounting base 106 fixed to one side of the support rod 105. The support rod 105 and the mounting base 106 are used to install the weeder on large agricultural machinery so that the weeder can operate.

[0057] In operation, when a stone appears in front of the weeder's path, the detection rod 2026 slides over the stone and is pushed by it, causing it to deflect on the surface of the support shaft 2023. This deflects the detection sleeve 2025 through the through groove 2025-1. The detection sleeve 2025 then drives the adjusting gear 2018 to rotate via the first pulley 2029 and the second pulley 20210. The adjusting gear 2018 then drives the rack 2013 to rise, thereby causing the support shaft 2023 to rotate. When the support sleeve 2012 moves upward, it can drive the drive sleeve 1041 to rise, thereby causing the weeding disc 1043 and the cutting blade 1044 to move upward and avoid the stones. As the drive sleeve 1041 rises, the triangular plate 2035 will push the limit rod 2033. When the drive sleeve 1041 stops rising, the locking tooth 2033-1 is inserted into the locking slot 2035-1, thereby limiting the drive sleeve 1041 and preventing the weeding disc 1043 from falling.

[0058] When the detection rod 2026 on one side of the fixing frame 2041 detects a stone, the deflection of the detection sleeve 2025 will cause the reset rod 2042 to move the drive column 2036, thereby causing the drive column 2036 to move the limit rod 2033 away from the triangular plate 2035. This causes the locking tooth 2033-1 to move out of the slot 2035-1, thereby releasing the limit on the triangular plate 2035. The weeding disc 1043 and the cutting blade 1044 move downward under the action of gravity, thereby resetting.

[0059] When multiple stones appear in the area between the two pairs of detection rods, the detection element 202 drives the adjustment element 201 to move the weeding element 104 to the highest stone. At this time, when the detection rod 2026 on one side of the fixing frame 2041 detects a stone with a lower height, the detection rod 2026 on the fixing frame 2041 drives the detection sleeve 2025 to deflect by a small distance. At this time, when the detection sleeve 2025 drives the reset rod 2042 to move, it cannot make the reset rod 2042 move the drive column 2036 at this time, thus failing to release the limit on the weeding element 104.

[0060] When the detection rod 2026 on one side of the fixing frame 2041 detects the tallest stone, the detection sleeve 2025 deflects, which will cause the reset rod 2042 to move the drive column 2036. This causes the drive column 2036 to move the limit rod 2033 away from the triangular plate 2035, thereby causing the locking tooth 2033-1 to move out of the slot 2035-1, thus releasing the limit on the triangular plate 2035, allowing the weeding component 104 to fall down and reset again.

[0061] If there are low stones below the weeding component 104, they will obstruct its descent. In this case, the support plate 1045 will fall on top of the stones, protecting the cutting blade 1044 and the weeding disc 1043, thus stopping the weeding component 104 from falling. Meanwhile, the triangular plate 2035 on one side of the support sleeve 2012 is limited by the limiting rod 2033, preventing the support sleeve 2012 from falling. As the weeder moves forward, the stones will be removed from the support plate. When the cutting disc is within the range of 1045, the weeding component 104 is limited by the limiting rod 2033 and will not fall, thus preventing the stone from colliding with the cutting blade 1044, thereby protecting the cutting blade 1044. This continues until the detection rod 2026 on one side of the fixing frame 2041 detects the removal of the stone. At this point, the limiting rod 2033 can release the limiting of the weeding component 104, allowing the weeding disc 1043 to fall back to its initial position, thereby enabling the cutting blade 1044 to operate normally.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A weeder with an automatic lifting weeding blade protective frame, characterized in that: include, The main component (100) includes a support platform (101), a fixed seat (102) is fixed on the support platform (101), a hydraulic motor (103) is fixed on the fixed seat (102), and a weeding component (104) is fixed at the output end of the hydraulic motor (103). An adjustment assembly (200) is disposed below the fixed base (102) and includes an adjustment component (201), including a slide rod (2011) fixed to the bottom of the fixed base (102), a support sleeve (2012) sliding on the surface of the slide rod (2011), a rack (2013) fixed inside the support sleeve (2012), a protective sleeve (2014) fixed to the bottom of the fixed base (102), a sealing plate (2015) fixed to the bottom of the protective sleeve (2014), a support block (2016) fixed inside the protective sleeve (2014), a support column (2017) rotatably connected inside the support block (2016), an adjustment gear (2018) fixed to the surface of the support column (2017), and the adjustment gear (2018) meshing with the rack (2013). The adjustment component (200) also includes a detection component (202) disposed on one side of the support platform (101), including a support seat (2021) fixed to one side of the support platform (101), a support frame (2022) fixed on one side of the support seat (2021), and a support shaft (2023) fixed at the bottom of the support frame (2022). The detection component (202) further includes a support ring (2024) fixed to the surface of the support shaft (2023), a detection sleeve (2025) is rotatably connected to the surface of the support ring (2024), and a torsion spring is provided between the support ring (2024) and the detection sleeve (2025); The detection component (202) further includes a detection rod (2026) rotatably connected to the surface of the support shaft (2023), a torsion spring is provided between the detection rod (2026) and the support shaft (2023), and a through groove (2025-1) is provided in the detection sleeve (2025). The detection component (202) also includes a fixing rod (2027) fixed to the bottom of the support frame (2022), a protective shell (2028) fixed to the end of the fixing rod (2027), a first pulley (2029) fixed to the surface of the detection sleeve (2025), and a second pulley (20210) fixed to the surface of the support column (2017). The adjustment assembly (200) further includes a limiting member (203) disposed on the surface of the protective sleeve (2014), including a connecting seat (2031) fixed to the surface of the protective sleeve (2014), a fixing sleeve (2032) fixed at the bottom of the connecting seat (2031), a limiting rod (2033) sliding inside the fixing sleeve (2032), a compression spring (2034) disposed at the end of the limiting rod (2033), and a locking tooth (2033-1) opened at the other end of the limiting rod (2033). A triangular plate (2035) is fixed on the surface of the support sleeve (2012), a locking groove (2035-1) is opened on the surface of the triangular plate (2035), a driving column (2036) is fixed on the surface of the limiting rod (2033), and a sliding groove (2032-1) is opened on the surface of the fixing sleeve (2032). The driving column (2036) slides in the sliding groove (2032-1). The adjustment assembly (200) further includes a reset component (204) disposed on one side of the support platform (101), including a fixing frame (2041) fixed on one side of the support platform (101), the support shaft (2023) is fixed inside the fixing frame (2041), the support shaft (2023) is provided with a support ring (2024), a detection sleeve (2025) and a detection rod (2026) on the surface of the support shaft (2023), the detection sleeve (2025) is fixed with a reset rod (2042), the reset rod (2042) is provided with a moving groove (2042-1), and the reset rod (2042) slides on the surface of the connecting seat (2031) and the fixing sleeve (2032).

2. The weeder with an automatic lifting weeding blade protective frame as described in claim 1, characterized in that: The weeding component (104) includes a drive sleeve (1041) that slides on the output end of the hydraulic motor (103). A drive block (1042) is fixed inside the drive sleeve (1041). A limiting groove (103-1) is opened at the output end of the hydraulic motor (103), and the drive block (1042) slides in the limiting groove (103-1).

3. The weeder with an automatic lifting weeding blade protective frame as described in claim 2, characterized in that: The weeding component (104) also includes a weeding disc (1043) fixed to the bottom of the drive sleeve (1041). A cutting blade (1044) and a support disc (1045) are fixed to the bottom of the weeding disc (1043). A weeding rod (1046) and a positioning block (1047) are hinged to the top of the weeding disc (1043). A counterweight block (1048) is fixed to one side of the weeding rod (1046).

4. The weeder with an automatic lifting weeding blade protective frame as described in claim 3, characterized in that: The main component (100) also includes a support rod (105) fixed to one side of the support platform (101), and a mounting base (106) is fixed to one side of the support rod (105).

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