A field management machine having a floating self-cleaning soil compacting mechanism

Abstract

The present application is suitable for the technical field of agricultural harvesting machinery, and provides a field management machine with a floating self-cleaning soil pressing mechanism, which comprises a field management machine body, a grass cutting and stubble crushing mechanism, an auxiliary cleaning mechanism and a floating pressing mechanism. The grass cutting and stubble crushing mechanism is arranged at the rear side of the field management machine body, and is used for cutting and crushing grass bodies, crop straws and post-harvest stubble in the field. The floating pressing mechanism is located behind the grass cutting and stubble crushing mechanism, and is used for rolling and flattening the crushed stubble and the ground surface. The present application forms a continuous agricultural operation path through the grass cutting and stubble crushing mechanism and the floating pressing mechanism. The grass cutting and stubble crushing mechanism first cuts off and crushes the weeds, straws and post-harvest stubble in the field by using a rotary cutting knife shaft and grass cutting and stubble crushing blades, so that the longer plant residues are formed into smaller stubble.

Description

Technical Field

[0001] This invention belongs to the field of agricultural harvesting machinery technology, and in particular relates to a garden management machine with a floating self-cleaning soil compaction mechanism. Background Technology

[0002] During crop harvesting, orchard management, and field maintenance, the ground surface is often littered with weeds, straw, stalks, and other crop residues. Longer plant residues not only affect subsequent field operations but can also easily entangle the moving parts of agricultural machinery. Therefore, it is usually necessary to use mowing and shredding equipment to cut and crush the surface plant material into smaller stubble, and then further work on the treated surface using compaction and leveling techniques.

[0003] In the prior art, for example, Chinese invention patent CN114080872A discloses an orchard ridge-side obstacle-avoiding weeding device and an orchard weeder, which is equipped with a grass-chopping roller and a grass-pressing roller. It can compact and flatten the cut weeds, and at the same time, the grass-pressing roller scraper removes the weeds and soil adhering to the grass-pressing roller. This solution can realize continuous operation of grass chopping and subsequent compaction, and can use the scraper to perform basic cleaning of the compaction components. However, in the working environment with sticky and wet soil and a lot of grass fibers and stubble, a thick layer of adhesion is easy to accumulate continuously in front of the scraper. Relying solely on the mechanical scraping action of the scraper still has the problems of high cleaning resistance and untimely removal of the adhering material.

[0004] For example, Chinese invention patent CN112997603A discloses a span-adjustable agricultural tillage roller that self-cleans adhering soil clods. It is equipped with a roller, scraper, air nozzle, and blower. The scraper mechanically cleans the adhering material from the surface of the tillage components, and the blower supplies air to the air nozzle to assist in blowing away the adhering soil clods. This solution enhances the cleaning effect of the tillage mechanism by combining mechanical scraping and pneumatic cleaning. However, its pneumatic cleaning relies on an independent blower for air supply, requiring additional power components and air supply structures. Furthermore, there is no direct mechanical correlation between the air jet action and the actual degree of adhesion on the tillage components.

[0005] Furthermore, during continuous field operations, the compaction components frequently rise and fall with surface protrusions, trenches, and the thickness of stubble accumulation, while the grounding components continuously roll as the machine moves forward. These rolling and floating movements inherently possess mechanical energy that can be further utilized; however, some existing equipment primarily uses them for compaction, ground contouring, or basic cleaning, without establishing a complete linkage mechanism that utilizes the periodic vibrations generated by ground rolling, the compressed air generated by floating displacement, and automatically triggers enhanced cleaning based on the thickness of the adhesion layer. Summary of the Invention

[0006] This invention provides a garden management machine with a floating self-cleaning soil compaction mechanism to solve the problems of existing grass cutting and stubble shredding equipment with compaction mechanisms that are prone to soil, grass clippings and stubble adhesion in sticky and wet soil environments, limited cleaning ability of fixed scrapers alone, and underutilization of the rolling and floating motion of the compaction mechanism.

[0007] The present invention is implemented as follows: a garden tiller with a floating self-cleaning soil compaction mechanism includes a garden tiller body, a grass cutting and stubble chopping mechanism, an auxiliary cleaning mechanism, and a floating compaction mechanism. The grass cutting and stubble chopping mechanism is located at the rear of the garden tiller body and is used to cut and crush grass, crop straw, and post-harvest stubble in the field. The floating compaction mechanism is located behind the grass cutting and stubble chopping mechanism and is used to roll and level the chopped stubble and the ground surface.

[0008] Preferably, the grass cutting and stubble chopping mechanism includes a rotary cutting shaft and multiple grass cutting and stubble chopping blades. The multiple grass cutting and stubble chopping blades are arranged outside the rotary cutting shaft. The rotary cutting shaft is connected to the power output unit of the garden tiller body, so that the rotary cutting shaft can drive the multiple grass cutting and stubble chopping blades to cut, crush and shred the grass, straw and post-harvest residues entering the working area.

[0009] Preferably, the floating compaction mechanism includes a grounding drive wheel, a mounting frame, a floating frame, a support, a soil compaction rod, a fixed limiting plate, and a rotating sleeve. The floating frame is rotatably connected between the mounting frame and the support. The fixed limiting plate is fixedly set at the bottom end of the support. The grounding drive wheel is fixedly connected to the soil compaction rod, and the soil compaction rod is movably inserted through the fixed limiting plate. The rotating sleeve is fixedly connected to the grounding drive wheel, so that when the grounding drive wheel rolls in contact with the ground surface, it can synchronously drive the soil compaction rod and the rotating sleeve to rotate.

[0010] Preferably, a striking rod is provided inside the rotating sleeve, and the striking rod and the rotating sleeve are connected in an axial sliding and circumferential limiting manner. A storage spring is provided between the striking rod and the rotating sleeve. A first magnetic attractor is provided on the outside of the striking rod, and a second magnetic attractor is provided on the fixed limiting plate, so that the first magnetic attractor can rotate with the rotating sleeve, while the second magnetic attractor remains fixed relative to the bracket.

[0011] Preferably, when the first magnetic attractor moves with the rotating sleeve to the corresponding position of the second magnetic attractor, the magnetic attraction between the two magnetic attractors causes the striking rod to generate axial displacement and compress the storage spring; as the grounding transmission wheel continues to roll, the first magnetic attractor and the second magnetic attractor gradually become misaligned, and the effective magnetic attraction between them decreases. When the restoring force of the storage spring is greater than the remaining magnetic holding force, the storage spring is released and pushes the striking rod to move rapidly in the opposite direction, causing the striking rod to strike the grounding transmission wheel and transmit vibration to the soil pressing rod through the grounding transmission wheel.

[0012] Preferably, the bracket is equipped with a trigger seat, the middle part of the trigger swing arm is rotatably connected to the trigger seat, the bottom end of the trigger rod is fixedly connected to the connecting shaft, the two ends of the connecting shaft are respectively rotatably connected to one end of the corresponding trigger swing arm, and the other end of the trigger swing arm is connected to the cleaning scraper. When the cleaning scraper is displaced due to the thickening of the adhering material on the surface of the soil pressing rod, the trigger swing arm and the connecting shaft can be used to drive the trigger rod to move.

[0013] Preferably, a trigger reset spring is provided on the outside of the trigger rod, and the top of the trigger rod is connected to the lever-type reset valve via a cable. When the cleaning scraper is pushed by a thick layer of soil, grass clippings, or stubble, the trigger swing arm drives the trigger rod to move, and the trigger rod further pulls the cable, causing the lever-type reset valve to open. After the deposits are removed, the trigger reset spring pushes the trigger rod, the trigger swing arm, and the cleaning scraper back to their initial state, while the cable releases the tension on the lever-type reset valve.

[0014] Preferably, the auxiliary cleaning mechanism includes a guide seat and a floating push rod. The guide seat is mounted on the mounting frame, and the floating push rod is slidably connected to the guide seat along the vertical direction. The bottom end of the floating push rod is connected to the floating frame, so that when the floating frame moves upward with the change of ground height, it can drive the floating push rod to move upward along the guide seat.

[0015] Preferably, the top end of the floating push rod is fixedly connected to the bottom end of the floating return spring, the top end of the floating return spring is fixedly connected to the bottom end of the pressure plate, and the compression airbag is set above the pressure plate, so that when the floating push rod moves upward, it can elastically push the pressure plate through the floating return spring, and the pressure plate can squeeze the compression airbag; the floating return spring can generate elastic deformation when the floating pressing mechanism suddenly rises significantly, reducing the degree of direct rigid impact of the floating push rod on the compression airbag.

[0016] Preferably, the compressed air bladder is connected to a one-way valve via a hose. The one-way valve is located on the outside of the guide seat. The air supply pipe passes through the guide seat and is connected to the air tank. The outlet end of the one-way valve is connected to the air supply pipe, so that when the compressed air bladder is squeezed by the pressure plate, the air inside it can enter the air tank in sequence through the hose, the one-way valve and the air supply pipe, while restricting the backflow of gas in the air tank towards the compressed air bladder.

[0017] Preferably, the compressed air bladder is equipped with a one-way air replenishment structure. When the pressure plate releases the pressure on the compressed air bladder, the compressed air bladder restores its internal volume using its own elastic recovery ability and draws in air from the outside through the one-way air replenishment structure so that the floating pressure mechanism can continue to perform the air compression action when it floats up again.

[0018] Preferably, the mounting bracket is equipped with an air circuit mounting seat, and the lever-type reset valve and the air supply pipe are installed on the air circuit mounting seat. The air inlet of the lever-type reset valve is connected to the air storage tank, and the air outlet is connected to the air jet pipe in sequence through the air supply pipe and the air guide pipe. The air jet pipe is set close to the cleaning scraper and forms multiple air jet ports facing the cleaning area of ​​the soil compaction bar, so that when the lever-type reset valve is opened, the compressed air in the air storage tank can be concentrated and delivered to the cleaning area.

[0019] Preferably, the airflow generated by the jet pipe is mainly used to remove mud, grass clippings, straw fibers and stubble debris that have been loosened by periodic vibration and stripped by the cleaning scraper from the cleaning area, so that the airflow, vibration loosening and mechanical scraping form a synergistic cleaning, rather than relying solely on the airflow to directly strip and compact wet mud.

[0020] Compared with related technologies, the garden tiller with a floating self-cleaning soil compaction mechanism provided by the present invention has the following beneficial effects: 1. This invention forms a continuous agricultural operation path through a grass cutting and stubble chopping mechanism and a floating compaction mechanism. The grass cutting and stubble chopping mechanism first uses a rotating cutting shaft and grass cutting and stubble chopping blades to cut and crush weeds, straw and post-harvest residues in the field, turning longer plant residues into smaller stubbles. The floating compaction mechanism then rolls the stubbles and the ground surface, making the stubbles closer to the ground surface, and compacts and levels the loose areas after the grass cutting and stubble chopping operation. Thus, the garden tiller can continuously complete grass cutting, stubble chopping, crop residue processing and subsequent compaction operations in one pass.

[0021] 2. This invention utilizes the natural rolling motion of the grounded drive wheel as it moves forward with the garden tiller to drive the rotating sleeve, striking rod, and first magnetic chuck to rotate. When the first magnetic chuck periodically passes the fixed second magnetic chuck, the magnetic attraction drives the striking rod to compress the storage spring. When the two magnetic chucks misalign, the storage spring quickly releases and drives the striking rod to strike the grounded drive wheel, further transmitting the vibration to the compaction bar. Thus, without the need for a separate vibration motor, the wet mud, grass fibers, and stubble residue on the surface of the compaction bar are repeatedly subjected to vibration, causing them to loosen or crack.

[0022] 3. This invention utilizes a floating pressing mechanism to drive the floating push rod as it moves up and down with the uneven ground surface. A floating return spring, located between the floating push rod and the pressure plate, elastically pushes the pressure plate to compress the air bladder. This allows multiple floating movements that occur randomly during field operations to be gradually converted into compressed air and stored in the air tank. At the same time, the floating return spring can buffer the force when the floating amplitude suddenly increases, reducing the possibility of the air bladder being over-compressed or damaged due to rigid impact.

[0023] 4. This invention uses a cleaning scraper, a triggering arm, a connecting shaft, a triggering rod, a cable, and a lever-type reset valve to form a mechanical triggering chain related to the degree of adhesion. When the amount of soil and residue is small, basic cleaning is completed through periodic vibration and the cleaning scraper. When the adhesion layer thickens and pushes the cleaning scraper to produce a large displacement, the mechanical triggering chain automatically opens the lever-type reset valve, releasing the compressed air accumulated in the air tank to the cleaning area to remove loosened or mechanically peeled mud and residue. This forms a multi-stage self-cleaning cycle of vibration loosening, mechanical scraping, pneumatic impurity removal, and automatic reset. Attached Figure Description

[0024] Figure 1 This is a first-view schematic diagram of the overall structure of the present invention; Figure 2 This is a second-view schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the connection structure between the grass cutting and stubble-crushing mechanism and the floating compaction mechanism of the present invention; Figure 4 This is a schematic diagram of the floating pressure mechanism of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 6 This is a partial structural diagram of the cleaning triggering mechanism of the present invention; Figure 7 For the present invention Figure 6 Enlarged view at point B in the middle; Figure 8 This is a partially enlarged schematic diagram of the magnetic suction and energy storage striking structure of the present invention; Figure 9 This is a schematic diagram of the floating compressed gas storage structure of the present invention; Figure 10 This is a cross-sectional view of the guide seat portion of the present invention.

[0025] In the diagram: 1. Garden tiller body; 2. Mowing and stubble-chopping mechanism; 3. Auxiliary cleaning mechanism; 4. Floating compaction mechanism; 5. Air supply pipe; 301. Air tank; 303. Guide seat; 304. Trigger seat; 305. Cable; 306. Trigger reset spring; 307. Trigger rod; 308. Air supply pipe; 309. Air circuit mounting base; 310. Pull-rod type reset valve; 311. Trigger swing arm; 312. Air jet pipe; 313. Air guide pipe; 314. 316. Connecting shaft; 317. One-way valve; 318. Floating push rod; 319. Floating return spring; 320. Pressure plate; 401. Compressed air bag; 402. Grounding drive wheel; 403. Mounting bracket; 404. Floating frame; 405. Soil pressing rod; 406. Fixed limit plate; 407. Rotating sleeve; 408. Energy storage spring; 409. Striking rod; 410. First magnetic attraction component; 411. Second magnetic attraction component; 412. Cleaning scraper. Detailed Implementation

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] Example 1

[0029] A preferred embodiment of the garden tiller with a floating self-cleaning soil compaction mechanism provided by the present invention is, for example... Figures 1 to 10 As shown: A garden tiller with a floating self-cleaning compaction mechanism includes a garden tiller body 1, a grass cutting and stubble-chopping mechanism 2, an auxiliary cleaning mechanism 3, and a floating compaction mechanism 4. The grass cutting and stubble-chopping mechanism 2 is installed at the rear of the garden tiller body 1, and the floating compaction mechanism 4 is located behind the grass cutting and stubble-chopping mechanism 2. When the garden tiller body 1 moves forward along the field, the grass cutting and stubble-chopping mechanism 2 first cuts and crushes the surface plant material, and the floating compaction mechanism 4 then rolls the chopped residue and the ground surface.

[0030] In this embodiment, the mowing and stubble-chopping mechanism 2 has a rotating cutting shaft extending laterally along the garden tiller body 1. The rotating cutting shaft is connected to the power output unit of the garden tiller body 1 through a power transmission structure. Multiple mowing and stubble-chopping blades are arranged on the outside of the rotating cutting shaft. The mowing and stubble-chopping blades are arranged at intervals along the axial direction of the rotating cutting shaft and form a cutting area covering the working width of the garden tiller when the rotating cutting shaft rotates.

[0031] After the garden tiller body 1 is started, the power output unit provides rotational power to the rotating cutting blade shaft. The rotating cutting blade shaft drives multiple stubble blades to cut, crush, and pulverize weeds, crop stalks, and harvested stem residues that enter the work area, turning longer plant materials into smaller stubble. The stubble falls to the ground under its own weight and the disturbance effect of the blades, for further processing by the floating compaction mechanism 4 at the rear.

[0032] A protective shell can be installed on the outside of the grass cutting and stubble-chopping mechanism 2. The protective shell forms a cutting working space around the rotary cutting shaft and the grass cutting and stubble-chopping blades. On the one hand, it can reduce the degree of disorderly outward scattering of high-speed stubble, and on the other hand, it can allow incompletely cut plant material to be further processed by the blades within the working space. The rotary cutting shaft and the garden tiller body 1 can be connected by a belt, chain, or gear, as long as the power generated by the garden tiller body 1 can be stably transmitted to the rotary cutting shaft.

[0033] Example 2

[0034] Based on Embodiment 1, the floating compaction mechanism 4 includes a grounding transmission wheel 401, a mounting frame 402, a floating frame 403, a support 404, a soil compaction rod 405, a fixed limiting plate 406, a rotating sleeve 407, a storage spring 408, a striking rod 409, a first magnetic suction component 410, a second magnetic suction component 411, and a cleaning scraper 412.

[0035] Mounting bracket 402 is installed at the rear of the garden tiller body 1 to form the mounting base between the floating pressing mechanism 4 and the garden tiller body 1. The upper part of the floating frame 403 is rotatably connected to the mounting bracket 402, and the lower part of the floating frame 403 is rotatably connected to the support 404, thereby allowing the support 404 to float up and down within a certain range relative to the mounting bracket 402.

[0036] The allowable swing range of the floating frame 403 can be determined by the installation position, the position of the rotating shaft, and the limiting distance between adjacent structures. When the grounding drive wheel 401 passes over local protrusions, thicker stubble layers, or clods of soil formed after rotary tillage or grass cutting operations, the support 404 can float upward with the grounding drive wheel 401; after passing over the protruding area, the support 404 can descend again under its own weight and corresponding reset action, thereby allowing the grounding drive wheel 401 to maintain rolling contact with the ground surface.

[0037] The top of the fixed limiting plate 406 is fixedly connected to the bottom of the bracket 404. When the floating pressing mechanism 4 floats up and down as a whole, the fixed limiting plate 406 can move synchronously with the bracket 404, but the fixed limiting plate 406 remains fixed relative to the bracket 404 itself and does not rotate with the grounding transmission wheel 401.

[0038] The grounding drive wheel 401 is located at the bottom of the support 404 and is in contact with the ground surface during equipment operation. The grounding drive wheel 401 is fixedly connected to the soil pressing rod 405, which passes through the fixed limiting plate 406 and forms a mating structure with the fixed limiting plate 406 that can meet the requirements of rotation and axial movement.

[0039] When the garden tiller body 1 moves forward, the ground drive wheel 401 rolls due to the friction of the ground, and the ground drive wheel 401 drives the soil pressing rod 405 to move synchronously. The soil pressing rod 405 rolls the stubble laid on the ground after being processed by the grass cutting and stubble mechanism 2 in front, as well as the local loose surface, so that the relatively loose stubble is further adhered to the ground, and produces a certain compaction and leveling effect on the local loose soil clods.

[0040] Example 3

[0041] Based on Example 2, the grounding drive wheel 401 is also used to provide rotational power for the periodically vibrating cleaning structure.

[0042] The rotating sleeve 407 is fixedly connected to the inner side of the grounding drive wheel 401, so when the grounding drive wheel 401 rolls, it can drive the rotating sleeve 407 to rotate synchronously around the corresponding rotation axis.

[0043] The striking rod 409 is disposed inside the rotating sleeve 407. The striking rod 409 and the rotating sleeve 407 are connected by axial sliding and circumferential limiting, so that the striking rod 409 cannot rotate freely in the circumferential direction relative to the rotating sleeve 407. Therefore, when the rotating sleeve 407 rotates, it can synchronously drive the striking rod 409 to rotate around the axis; at the same time, the striking rod 409 can also reciprocate along the axial direction of the rotating sleeve 407.

[0044] The structure that achieves the aforementioned circumferential limiting and axial sliding can be achieved by using a guide groove arranged axially along the striking rod 409 to engage with a guide protrusion inside the rotating sleeve 407, or by using a non-circular cross-section sliding fit or a keyway sliding fit. All of these structures can ensure that the striking rod 409 rotates synchronously with the rotating sleeve 407 while also giving the striking rod 409 axial power storage motion freedom.

[0045] A storage spring 408 is disposed between the striking rod 409 and the rotating sleeve 407. One end of the storage spring 408 interacts with the rotating sleeve 407, and the other end interacts with the striking rod 409. When the striking rod 409 moves in the storage direction, the storage spring 408 is compressed and stores elastic potential energy.

[0046] The first magnetic chuck 410 is fixedly connected to the outside of the striking rod 409, and the second magnetic chuck 411 is fixedly connected to both sides of the fixed limiting plate 406. The first magnetic chuck 410 can rotate together with the rotating sleeve 407 and the striking rod 409, while the second magnetic chuck 411 does not rotate with the grounding transmission wheel 401 because the fixed limiting plate 406 remains stationary.

[0047] The first magnetic attractor 410 and the second magnetic attractor 411 can both be permanent magnets, or one can be a permanent magnet and the other can be a magnetic material that can be attracted by magnetic force. The magnetic attraction strength of the first magnetic attractor 410 and the second magnetic attractor 411 and the elastic parameters of the storage spring 408 should meet the following requirements: when the first magnetic attractor 410 and the second magnetic attractor 411 enter the effective relative area, the magnetic attraction can overcome the restoring force of the storage spring 408 in the initial stage, thereby driving the striking rod 409 to move; after the two magnetic attractors gradually misalign with the rotational movement, the remaining magnetic attraction force is lower than the restoring force of the storage spring 408, so that the storage spring 408 can drive the striking rod 409 to quickly return to its original position.

[0048] During operation, when the first magnetic chuck 410 rotates with the grounding transmission wheel 401 to the position corresponding to the second magnetic chuck 411, the first magnetic chuck 410 is attracted by the second magnetic chuck 411, thereby driving the striking rod 409 to move along the axis of the rotating sleeve 407 toward the direction of the second magnetic chuck 411, and gradually compressing the energy storage spring 408.

[0049] As the grounding drive wheel 401 continues to roll, the first magnetic attractor 410 continues to move along the circumferential trajectory. The first magnetic attractor 410 and the second magnetic attractor 411 gradually move from a relative state to a misaligned state, and the effective magnetic attraction between them gradually decreases. When the restoring force generated by the storage spring 408 is greater than the current magnetic holding force, the storage spring 408 releases its elastic potential energy, driving the striking rod 409 to move rapidly in the opposite direction, causing the end of the striking rod 409 to strike the grounding drive wheel 401.

[0050] After the striking rod 409 strikes the grounding transmission wheel 401, it generates instantaneous mechanical vibration. The vibration is further transmitted through the grounding transmission wheel 401 to the soil pressing rod 405, which is fixedly connected to it, causing the wet mud, grass clippings and stubble fibers attached to the outside of the soil pressing rod 405 to be subjected to periodic vibration.

[0051] When the grounding drive wheel 401 rotates continuously, the first magnetic suction member 410 continuously and periodically passes through the fixed second magnetic suction member 411, thereby causing the striking rod 409 to perform magnetic displacement, compression storage, magnetic misalignment and elastic striking actions in a cycle, causing the adhesion layer on the surface of the soil pressing rod 405 to be continuously impacted and loosened.

[0052] Example 4

[0053] Based on Examples 2 and 3, the auxiliary cleaning mechanism 3 also utilizes the up-and-down floating motion generated by the floating pressure mechanism 4 to store compressed air energy.

[0054] The auxiliary cleaning mechanism 3 includes an air tank 301, a guide seat 303, an air supply pipe 308, a one-way valve 316, a floating push rod 317, a floating return spring 318, a pressure plate 319, and a compressed air bag 320.

[0055] The guide seat 303 is fixedly installed at the corresponding position of the mounting bracket 402. A guide space extending vertically is formed inside the guide seat 303. The floating push rod 317 is vertically slidably connected inside the guide seat 303, so that the floating push rod 317 can only move back and forth in the set direction to reduce lateral deviation during the air compression process.

[0056] The bottom end of the floating push rod 317 is connected to the floating frame 403. This connection can be a rotatable connection or a connection that allows for a small amount of angle compensation, so that when the floating frame 403 swings around the mounting frame 402, it can transmit the corresponding vertical displacement to the floating push rod 317, without causing the floating push rod 317 to jam with the guide seat 303 due to changes in the swing angle.

[0057] The top end of the floating push rod 317 is fixedly connected to the bottom end of the floating return spring 318, and the top end of the floating return spring 318 is fixedly connected to the bottom end of the pressure plate 319. The pressure plate 319 is located below the compressed air bag 320.

[0058] Therefore, an elastic force transmission path is formed between the floating push rod 317 and the pressure plate 319, which is the floating push rod 317-floating return spring 318-pressure plate 319, instead of the floating push rod 317 directly and rigidly pushing the pressure plate 319.

[0059] When the grounding drive wheel 401 passes through areas with protruding ground, high soil clods, or thick piles of stubble, the bracket 404 and the floating frame 403 float upward relative to the mounting frame 402, and the floating frame 403 drives the floating push rod 317 to move upward along the guide seat 303.

[0060] After the floating push rod 317 moves upward, it first applies a force to the bottom end of the floating return spring 318. The floating return spring 318 is compressed and transmits an upward force to the pressure plate 319, causing the pressure plate 319 to gradually move upward and squeeze the airbag 320.

[0061] The floating return spring 318 is located between the floating push rod 317 and the pressure plate 319. When the ground transmission wheel 401 is subjected to a large ground impact and suddenly floats up, it can first generate a certain elastic deformation, so that the upward movement of the pressure plate 319 is relatively slow, reducing the risk of the airbag being excessively deformed momentarily due to the rigid pressure of the floating push rod 317 on the compressed airbag 320.

[0062] The compression airbag 320 uses an elastic airbag that can shrink in volume after being compressed and recover on its own after the pressure is released. The compression airbag 320 has an exhaust end and a one-way air supply structure.

[0063] The exhaust end of the compressed air bag 320 is connected to the inlet end of the one-way valve 316 via a flexible hose. The one-way valve 316 is installed on the outside of the guide seat 303, and the outlet end of the one-way valve 316 is connected to the air supply pipe 308.

[0064] The air supply pipe 308 passes through the guide seat 303 and connects upward to the air storage tank 301. When the pressure plate 319 squeezes the compression bladder 320, the internal volume of the compression bladder 320 decreases and the air pressure increases. The compressed air enters the one-way valve 316 along the flexible hose, and under pressure, it enters the air supply pipe 308 through the one-way valve 316, and then enters the air storage tank 301.

[0065] The one-way valve 316 is used to prevent the compressed air inside the air tank 301 from flowing back towards the air bladder 320. Therefore, after the air bladder 320 completes one compression cycle, even if the air bladder 320 re-expands, the gas stored inside the air tank 301 can still be maintained.

[0066] After the grounding drive wheel 401 passes the raised area, the floating frame 403 returns to its original position, the floating push rod 317 descends synchronously, and the compression effect of the pressure plate 319 on the compressed air bag 320 is reduced. The compressed air bag 320 restores its internal volume using its own elastic recovery capability and re-draws air from the outside through the one-way air replenishment structure.

[0067] As the garden management machine body 1 continues to move forward, the repeated up and down movement of the floating pressure mechanism 4 enables the compressed air bag 320 to repeatedly perform the cycle of intake-compression-supply-recovery, so that the small amount of compressed air generated by each movement gradually enters the air storage tank 301.

[0068] Multiple gas storage tanks 301 can be installed, and these tanks are interconnected through connecting pipes to form a gas storage space, thereby increasing the gas storage capacity. The gas storage tanks 301 can also be equipped with conventional pressure-limiting structures to prevent internal pressure from exceeding permissible limits.

[0069] Example 5

[0070] Based on Embodiments 1 to 4, the auxiliary cleaning mechanism 3 further includes a trigger seat 304, a pull cable 305, a trigger reset spring 306, a trigger rod 307, an air path mounting seat 309, a pull rod type reset valve 310, a trigger swing arm 311, a jet pipe 312, an air guide pipe 313, and a connecting shaft 314.

[0071] The trigger seat 304 is fixedly connected to the bracket 404, and the middle part of the trigger swing arm 311 is rotatably connected to the inner side of the trigger seat 304, so that the trigger swing arm 311 can use the position connected to the trigger seat 304 as the swing fulcrum.

[0072] The trigger rod 307 is positioned between two trigger arms 311. The bottom end of the trigger rod 307 is fixedly connected to the connecting shaft 314, which extends laterally. Both ends of the connecting shaft 314 are rotatably connected to one end of the corresponding trigger arm 311.

[0073] The other ends of the two trigger arms 311 are respectively connected to the cleaning scraper 412. Thus, when the cleaning scraper 412 is displaced by an external force, it can drive the trigger arms 311 to swing around the trigger seat 304, and the trigger arms 311 can further drive the trigger rod 307 to move through the connecting shaft 314.

[0074] The cleaning scraper 412 is positioned on the outer side of the soil-pressing rod 405, forming a cleaning gap between it and the soil-pressing rod 405 suitable for scraping off the attached material. During normal operation, when there is only a thin layer of mud or a small amount of grass clippings on the outer side of the soil-pressing rod 405, periodic tapping vibration can first loosen the attached material, and the cleaning scraper 412 will then scrape off the loosened mud, grass clippings, and stubble.

[0075] A trigger reset spring 306 is sleeved on the outside of the trigger rod 307, providing the trigger rod 307 with elastic force to return to its initial position. The top end of the trigger rod 307 is connected to a pull cable 305, and the other end of the pull cable 305 is connected to a pull rod type reset valve 310.

[0076] The gas path mounting base 309 is fixedly installed on the mounting frame 402. The pull rod type reset valve 310 and the gas supply pipe 5 are both set on the gas path mounting base 309, so that the valve and the gas path are stably supported, and it is easy for the cable 305 and the pull rod type reset valve 310 to maintain a relatively stable traction direction.

[0077] The lever-type reset valve 310 adopts a mechanical pull-opening structure, including a valve body, a movable valve core, a mechanical lever, and a valve core reset elastic element. When the mechanical lever is pulled by the cable 305, it drives the valve core to move, connecting the air inlet end and the air outlet end of the valve body; after the cable 305 is released, the valve core reset elastic element pushes the valve core back to the closed position.

[0078] The air inlet of the lever-type reset valve 310 is connected to the air storage tank 301, and the air outlet of the lever-type reset valve 310 is connected to the air supply pipe 5. The air supply pipe 5 is further connected to the air guide pipe 313, and the air guide pipe 313 is connected to the jet pipe 312.

[0079] The jet pipe 312 is set along the cleaning area corresponding to the cleaning scraper 412. The jet pipe 312 forms multiple jet nozzles, and each jet nozzle faces the cleaning area between the soil pressing rod 405 and the cleaning scraper 412.

[0080] Under normal operating conditions, the adhesion layer on the surface of the soil pressing rod 405 is relatively thin, and the cleaning scraper 412 is only subjected to normal mud scraping resistance. At this time, the displacement of the cleaning scraper 412 is small, and the movement generated by the trigger swing arm 311 and the trigger rod 307 is insufficient to make the cable 305 pull the lever reset valve 310 to the opening stroke.

[0081] As wet mud, grass fibers, and stubble continue to adhere to the outside of the soil compaction rod 405, the thickness of the adhesion layer gradually increases. When the thicker adhesion layer moves with the soil compaction rod 405 to the position of the cleaning scraper 412, it exerts a greater thrust on the cleaning scraper 412, causing the cleaning scraper 412 to retract and shift.

[0082] After the cleaning scraper 412 retracts, it causes the trigger arm 311 to rotate around the trigger seat 304. The other end of the trigger arm 311 drives the trigger rod 307 to move through the connecting shaft 314. The trigger rod 307 overcomes the elastic force of the trigger reset spring 306 and pulls the cable 305.

[0083] When the cable 305 reaches the required opening stroke of the lever-type reset valve 310, the lever-type reset valve 310 opens, allowing the compressed air stored in the air tank 301 to enter the air transmission pipe 5.

[0084] Compressed air passes sequentially through the air supply pipe 5, the air guide pipe 313, and the jet pipe 312, and is sprayed into the cleaning area through multiple jet nozzles on the jet pipe 312.

[0085] The airflow is mainly used to blow away mud, grass clippings, straw fibers and stubble debris that have been loosened by the periodic vibration of the striking rod 409 or have been peeled off from the surface of the soil pressing rod 405 by the cleaning scraper 412 from the cleaning area, thereby preventing the above materials from re-accumulating near the cleaning scraper 412.

[0086] After the thicker adhesion layer is removed, the pushing force of the soil pressing rod 405 on the cleaning scraper 412 decreases, triggering the reset spring 306 to drive the trigger rod 307 to return to the initial position, and then the cleaning scraper 412 returns to the normal working position through the connecting shaft 314 and the trigger swing arm 311.

[0087] After the trigger rod 307 is reset, the cable 305 releases the traction on the mechanical pull rod of the lever-type reset valve 310, and the valve core reset elastic element inside the lever-type reset valve 310 causes the valve core to return to the closed position, and the gas tank 301 stops venting and re-enters the gas storage state.

[0088] Example 6

[0089] When the present invention performs continuous field operations, the main body 1 of the garden management machine first moves forward along the plot to be treated, and the grass cutting and stubble chopping mechanism 2 drives the grass cutting and stubble chopping blades to cut, strike and crush the weeds, crop straw and post-harvest residue on the ground by rotating the cutting blade shaft, forming shorter stubble and spreading it on the ground.

[0090] Subsequently, the floating compaction mechanism 4 passes through the area where the grass stubble has been cut and shredded. The ground drive wheel 401 rolls in contact with the ground surface, and the compaction rod 405 compacts and levels the shredded residue and locally loose ground surface.

[0091] As the grounding drive wheel 401 rolls, it drives the rotating sleeve 407, the striking rod 409, and the first magnetic attractor 410 to move synchronously. The first magnetic attractor 410 periodically passes by the fixed second magnetic attractor 411, causing the striking rod 409 to undergo cyclic magnetic displacement and compression of the energy storage spring 408. After the two magnetic attractors are misaligned, the energy storage spring 408 is quickly released, causing the striking rod 409 to strike the grounding drive wheel 401, generating periodic vibration.

[0092] The periodic vibration first loosens the wet mud, grass fibers and stubble adhering to the outside of the soil compaction bar 405, and then the cleaning scraper 412 mechanically peels off the loosened attachments.

[0093] When the floating pressure mechanism 4 passes through the raised area, the floating frame 403 floats up and drives the floating push rod 317 to move upward. The floating push rod 317 elastically pushes the pressure plate 319 through the floating reset spring 318, and the pressure plate 319 further squeezes and compresses the airbag 320.

[0094] Compressed air generated by the air bladder 320 enters the air tank 301 via a hose, a one-way valve 316, and an air supply pipe 308. After the floating pressure mechanism 4 falls back down, the air bladder 320 re-draws in air through the one-way air replenishment structure. As the garden tiller continues to move, the repeated up-and-down floating motion continuously replenishes the air tank 301 with gas.

[0095] When the surface layer of the soil-pressing rod 405 does not increase significantly, the cleaning scraper 412 remains in the normal mud-scraping position, the lever-type reset valve 310 remains closed, and the air storage tank 301 continues to store air.

[0096] When the wet mud and residue on the surface of the soil pressing rod 405 thicken and push the cleaning scraper 412 to produce a large displacement, the cleaning scraper 412 drives the trigger rod 307 to move through the trigger swing arm 311 and the connecting shaft 314. The trigger rod 307 further opens the pull rod type reset valve 310 through the cable 305.

[0097] The compressed air accumulated inside the air storage tank 301 is released in a concentrated manner through the air supply pipe 5, the air guide pipe 313 and the jet pipe 312 to assist in blowing away the mud, grass clippings and stubble fragments that have been loosened by vibration and mechanical stripping.

[0098] After the attached material is removed, the thrust on the cleaning scraper 412 decreases, triggering the reset spring 306 to reset the trigger rod 307 and the trigger swing arm 311, and the pull rod type reset valve 310 automatically closes, allowing the auxiliary cleaning mechanism 3 to re-enter the air storage state.

[0099] It is worth noting that the circuits, electronic components, and modules involved in this invention are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve improvements to the software and methods.

[0100] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0101] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A garden tiller with a floating self-cleaning compaction mechanism, comprising a garden tiller body (1), a mowing and stubble-chopping mechanism (2), an auxiliary cleaning mechanism (3), and a floating compaction mechanism (4), characterized in that: The grass cutting and stubble-chopping mechanism (2) is located on the rear side of the garden management machine body (1); the floating compaction mechanism (4) includes a ground drive wheel (401), a soil pressing rod (405), a power storage spring (408), a striking rod (409), a first magnetic suction element (410), a second magnetic suction element (411), and a cleaning scraper (412). The ground drive wheel (401) is fixedly connected to the soil pressing rod (405). The first magnetic suction element (410) rotates with the ground drive wheel (401) and periodically corresponds to the second magnetic suction element (411) so as to drive the striking rod (409) to compress the power storage spring (408) and then release the striking action. The auxiliary cleaning mechanism (3) includes an air tank (301), a lever-type reset valve (310), and a compressed air bag (320). The floating motion of the floating pressure mechanism (4) drives the compressed air bag (320) to supply air to the air tank (301). The cleaning scraper (412) is connected to the lever-type reset valve (310) in a transmission connection.

2. A garden tiller with a floating self-cleaning soil compaction mechanism according to claim 1, characterized in that: The grass cutting and stubble-chopping mechanism (2) includes a rotary cutting blade shaft and multiple grass cutting and stubble-chopping blades. The multiple grass cutting and stubble-chopping blades are arranged on the outside of the rotary cutting blade shaft. The rotary cutting blade shaft is connected to the power output unit of the garden management machine body (1) for transmission.

3. A garden tiller with a floating self-cleaning soil compaction mechanism according to claim 1, characterized in that: The floating compaction mechanism (4) further includes an installation frame (402), a floating frame (403), a support (404), a fixed limiting plate (406), and a rotating sleeve (407). The floating frame (403) is rotatably connected between the installation frame (402) and the support (404). The fixed limiting plate (406) is fixedly connected to the bottom end of the support (404). The soil compaction rod (405) is rotatably and axially slidably connected to the inner side of the fixed limiting plate (406). The rotating sleeve (407) is fixedly connected to the grounding transmission wheel (401).

4. A garden tiller with a floating self-cleaning soil compaction mechanism according to claim 3, characterized in that: The striking rod (409) is axially sliding and circumferentially limited and connected to the inner side of the rotating sleeve (407). The energy storage spring (408) is disposed between the striking rod (409) and the rotating sleeve (407). The first magnetic suction member (410) is fixedly connected to the striking rod (409), and the second magnetic suction member (411) is fixedly connected to both sides of the fixed limiting plate (406). When the first magnetic suction member (410) and the second magnetic suction member (411) are opposite to each other, they drive the striking rod (409) to move and compress the energy storage spring (408). After the two are misaligned, the energy storage spring (408) drives the striking rod (409) to strike the ground transmission wheel (401).

5. A garden tiller with a floating self-cleaning soil compaction mechanism according to claim 3, characterized in that: The bracket (404) is fixedly connected to a trigger seat (304), and a trigger swing arm (311) is rotatably connected to the inner side of the trigger seat (304). A connecting shaft (314) is fixedly connected to the bottom end of the trigger rod (307). The two ends of the connecting shaft (314) are rotatably connected to one end of the trigger swing arm (311), and the other end of the trigger swing arm (311) is connected to the cleaning scraper (412).

6. A garden tiller with a floating self-cleaning soil compaction mechanism according to claim 5, characterized in that: A trigger reset spring (306) is sleeved on the outside of the trigger rod (307), and a cable (305) is connected to the top of the trigger rod (307). The other end of the cable (305) is connected to the lever-type reset valve (310). When the cleaning scraper (412) is displaced by the material adhering to the outside of the pressure bar (405), the trigger rod (307) is moved by the trigger swing arm (311) and the connecting shaft (314), and the lever-type reset valve (310) is opened by the cable (305).

7. A garden tiller with a floating self-cleaning soil compaction mechanism according to claim 3, characterized in that: The auxiliary cleaning mechanism (3) further includes a guide seat (303) and a floating push rod (317). The guide seat (303) is disposed on the mounting frame (402). The floating push rod (317) is vertically slidably connected to the inner side of the guide seat (303). The bottom end of the floating push rod (317) is connected to the floating frame (403).

8. A garden tiller with a floating self-cleaning soil compaction mechanism according to claim 7, characterized in that: The top end of the floating push rod (317) is fixedly connected to the bottom end of the floating return spring (318), and the top end of the floating return spring (318) is fixedly connected to the bottom end of the pressure plate (319). The compressed air bag (320) is located above the pressure plate (319). When the floating push rod (317) moves upward, it pushes the pressure plate (319) through the floating return spring (318) to squeeze the compressed air bag (320).

9. A garden tiller with a floating self-cleaning soil compaction mechanism according to claim 8, characterized in that: A one-way valve (316) is located on the outside of the guide seat (303) and is connected to the compressed air bag (320) through a hose. An air supply pipe (308) passes through the guide seat (303) and is connected to the air storage tank (301). The outlet end of the one-way valve (316) is connected to the air supply pipe (308). The compressed air bag (320) is also provided with a one-way air replenishment structure.

10. A garden tiller with a floating self-cleaning soil compaction mechanism according to claim 9, characterized in that: A gas path mounting base (309) is fixedly connected to the mounting bracket (402). The lever-type reset valve (310) is installed on the gas path mounting base (309). The gas supply pipe (5) is set on the gas path mounting base (309) and connected to the gas outlet of the lever-type reset valve (310). The gas inlet of the lever-type reset valve (310) is connected to the gas storage tank (301). The air guide pipe (313) is connected to the gas supply pipe (5). The jet pipe (312) is connected to the air guide pipe (313) and set on the cleaning scraper (412). The jet pipe (312) is provided with multiple jet nozzles facing the cleaning area of ​​the soil pressing rod (405).

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