95 results about "Land leveling" patented technology

The invention relates to the technical field of agricultural machinery, in particular to a self-propelled multifunctional dry land leveler and an operation method, and the self-propelled multifunctional dry land leveler comprises a machine body, a tillage component, a soil taking component, a conveying component, a stock bin, a soil discharging component, a land leveling device and the like. The tilling part is arranged at the front end of the land leveler, so that the tilling depth can be controlled according to elevation data; the soil taking component and the conveying component are arranged, so that surface soil after cultivation can be collected to the feeding end of the conveying component, and the soil is further conveyed to the stock bin through the conveying component; a soil discharging part is arranged, and soil in the stock bin can be evenly spread to the ground lower than the datum plane according to elevation data; the rear end of the machine tool is also hooked / dragged with the leveling equipment, and the final leveling operation process can be realized according to the elevation data.

The invention provides an ecological restoration method for backfilling dehydrated slime into a bauxite goaf, which comprises the following steps of: backfilling filtered and dehydrated slime into the goaf, and covering soil; and then land leveling, slope treatment, soil improvement, irrigation and drainage engineering, field road construction, farmland protection, ecological environment protection, science and technology supporting service and other processes are carried out. Organic fertilizers (such as pig manure and chicken manure) and a biological silicon fertilizer are added on the basis of an inorganic fertilizer, so that the physical and chemical properties of soil are more effectively improved, and meanwhile, the risk of heavy metals in the soil is reduced; by implementing a terraced field slope descending measure in the goaf, the land is smoother, water and soil loss is effectively prevented, the soil fertility is kept, the repaired land can be returned to farmers for planting common crops such as corn, peanuts and cassava, the income of the farmers can be increased, and local agricultural development can be promoted.

The application relates to the technical field of agricultural machinery, in particular to a land leveler for fine and deep application of organic fertilizer, which comprises a device whole, a push leveler for land leveling is arranged on the device whole, a ditching shovel and a fertilizer pipe are arranged below the device whole, an arc bending block is arranged on one side of the fertilizer pipe close to the ditching shovel, a baffle is fixedly arranged in the fertilizer pipe, a hydraulic rod is fixedly arranged in the fertilizer pipe, a fixed sliding block is fixedly connected to the power output end of the hydraulic rod, a limiting pipe is rotatably connected to one side of the fixed sliding block, a torsional spring is arranged between the limiting pipe and the fixed sliding block, and a sliding rod is slidably connected to the limiting pipe. In the process of use, the arc-shaped scraper can scrape off the organic fertilizer adhered to the arc bending block in the fertilizer pipe, so that the fertilizer pipe is prevented from being blocked by the accumulated organic fertilizer.

1. The name of the design product: the body of excavator. 2. The use of the design product: used as a whole for earthwork excavation, loading, land leveling, crushing, demolition and other operations, and used locally for the body of excavator. 3. The design points of the design product: the body of excavator. 4. The picture or photo that best indicates the design points: perspective view 1. 5. Other circumstances that need to be explained: the design application is a partial appearance, the part requested for protection is the part without red coating, the above-mentioned colors are only for determining the protected part, and the design does not request protection of colors.

The application discloses a method and system for automatic land leveling control of excavators based on visual laser fusion, and relates to the field of automatic control of engineering machinery. The method obtains three-dimensional terrain point clouds of a working area through a binocular vision acquisition module, combines reference height signals of a laser leveling instrument and body posture data of an IMU, and constructs a global dynamic terrain model through a multi-sensor fusion algorithm. According to preset land leveling parameters, a target path for shovel operation is generated, joint control amounts of a swing arm, a dipper arm and a shovel are calculated in combination with kinematic inverse solution of the excavator, and finally, adaptive land leveling operation of the shovel is realized through a hydraulic actuator. The application solves the problems of traditional manual land leveling, such as dependence on experience, low precision and poor efficiency, significantly improves land leveling operation precision and efficiency, reduces labor intensity of operators, and is suitable for road subgrade leveling, building site excavation and leveling, farmland reconstruction and other scenes.

The utility model discloses a rotary tillage soil moisture leveling device for a soil moisture leveling plough, and belongs to the field of agricultural machinery. A plough frame and left and right plough shares mounted on the plough frame are arranged at the front end of the rotary tillage soil moisture leveling device, a double-end transmission gearbox is arranged above the plough frame, and the front side of the double-end transmission gearbox is in transmission connection with a power output device (such as a tractor). A rotary tillage knife rest, an upper soil retaining plate, a gear box, a knife shaft bearing seat assembly, a knife shaft, a soil shifting knife, a soil breaking knife, a rear soil retaining guide plate and the like are arranged at the rear end of the rotary tillage soil moisture leveling device. The gearbox is in transmission connection with the double-end transmission gearbox through a transmission device; the tool rest is connected with the plow frame through a special installation assembly and is provided with a suspension structure adapting to topographic relief. And the tail part is provided with an angle-adjustable soil plastering plate and an adjusting assembly. The machine can effectively adapt to different terrains, achieves efficient soil treatment and accurate soil moisture leveling, and is suitable for agricultural land leveling and soil moisture content treatment operation.

The application discloses a floating regulation type paddy field beating and land leveling machine, which comprises a suspension device, a frame, a floating device, a ground surface profiling device, a soil scraping plate and a lifting plate; the suspension device is hinged with the frame and connected with the frame through the ground surface profiling device; the soil scraping plate is movably connected with the frame through the floating device; and the lifting plate is connected to the bottom end of the frame. The earth carrying capacity is controlled by adjusting the length of the secondary oil cylinder; the operation and transportation states of the application are switched by adjusting the length of the primary oil cylinder; and the coupling effect among the suspension device, the floating device and the lifting plate reduces the influence of the hard bottom layer on the paddy field leveling operation.

The invention provides adjustable automatic ditching equipment for land consolidation and an operation method thereof. The adjustable automatic ditching equipment for land consolidation comprises a ditching front-section support, a ditching assembly used for conducting ditching treatment on land, a soil separation detection assembly, a land leveling assembly used for conducting leveling action on the land subjected to ditching through the ditching assembly and a pre-soil-loosening assembly, the ditching assembly is installed at one end of the ditching front-section support, and the soil separation detection assembly is installed at the other end of the ditching front-section support. The soil separation detection assembly is installed at the end, away from the ditching front-section support, of the ditching assembly, the land leveling assembly is installed on the lower side of the ditching front-section support, and the pre-soil-loosening assembly is installed at the end, away from the ditching assembly, of the soil separation detection assembly. According to the adjustable automatic ditching equipment for land consolidation, through mutual cooperation of all the structures, pre-ground breaking can be conducted on hard land, the ditching efficiency of ditching is improved, simultaneous multi-angle ditching can be achieved, the application scene of ditching can be improved, and the adaptability of the adjustable automatic ditching equipment is improved.

The invention relates to the technical field of land renovation, in particular to an intelligent leveling device for land renovation, which comprises a vehicle body, a crawler mechanism for driving the vehicle body to advance is arranged on the vehicle body, a support arm is fixed on the vehicle body, a bucket for shoveling soil is hinged on the support arm, and a lifting oil cylinder is arranged between the vehicle body and the bucket. The two ends of the lifting oil cylinder are hinged to the vehicle body and the bucket respectively. A discharging port is formed in the bucket, a smashing roller used for smashing shoveled soil is rotationally installed on the bucket, and a conveying belt used for conveying the smashed shoveled soil is rotationally installed on the portion, located below the discharging port, of the vehicle body. According to the invention, a plurality of procedures such as soil shoveling, soil crushing, conveying, screening and compacting can be organically integrated into a set of continuous and automatic operation system, the undisturbed soil can be efficiently treated, and the efficiency, quality and automation degree of land leveling are obviously improved.

1. The name of the design product: excavator. 2. The use of the design product: used for earthwork excavation, loading, land leveling, crushing, demolition and other operations. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention relates to the technical field of land leveling engineering, in particular to a high-precision land leveling operation device based on Beidou positioning, which comprises a driving chassis, the top of the driving chassis is provided with a cockpit, and the top of the cockpit is provided with a laser radar. And cameras are installed at the positions, located on the two sides of the laser radar, of the top of the driving chassis, a Beidou satellite navigation device is installed at the top of the driving chassis, and a first mechanical arm and a second mechanical arm are installed on the outer side wall of the cockpit. The excavator bucket is responsible for excavating and transferring a large-area soil layer, the clamping jaw is responsible for accurately clamping stones and normalizing soil, and the excavator bucket and the clamping jaw cooperate with each other, so that the problem that a single operation mechanism cannot thoroughly treat terrain defects is solved, the land leveling quality is greatly improved, a special collection hopper is arranged, centralized collection and transferring of stones and muck are achieved, secondary scattering is avoided, and the subsequent cleaning cost is reduced. And the working environment is optimized.

The energy-saving land leveling shovel comprises a vehicle frame, walking wheels, a vehicle arm, a land leveling shovel plate and a side wing shovel plate, the multiple walking wheels are rotationally arranged on one side of the vehicle frame, the other side of the vehicle frame is rotationally hinged to the bottom of the rear side of the vehicle arm, and the land leveling shovel plate is rotationally connected to the bottom of the front side of the vehicle arm; side wing shovel plates are fixedly connected to the two sides of the land leveling shovel plate; the included angle alpha between the side wing shovel plate and the land leveling shovel plate is more than 90 degrees and less than 180 degrees; a first hydraulic cylinder is connected between the side wall of the vehicle arm and the upper portion of the land leveling shovel plate, and the two ends of the first hydraulic cylinder are rotationally hinged to the vehicle arm and the land leveling shovel plate respectively. The energy-saving land leveling shovel with the adjustable working face width has the beneficial effects that flexible adaptation of the working face width of 2-5 m is achieved, the workload and energy consumption are reduced, the economical efficiency is remarkably improved, the service life of equipment is prolonged, the working period is greatly shortened, and the working efficiency and the land leveling precision are remarkably improved.

The utility model relates to the technical field of land reclamation, and discloses a land leveler for land reclamation, which comprises a leveling plate, a plurality of leveling shovels are fixed at the bottom of the leveling plate at intervals, a slope plate is fixed on one side of the leveling plate, a lower plate is fixedly mounted above the leveling plate through bolts, an upper plate is arranged right above the lower plate, and the slope plate is fixed on one side of the leveling plate. A plurality of telescopic mechanisms are connected between the upper plate and the lower plate, a transverse plate is arranged on one side of the upper portion of the upper plate, and lifting mechanisms are connected between the two sides of the bottom of the transverse plate and the upper plate. The supporting rod is connected with the tractor, the tractor drives the device to move, land can be leveled through the leveling plate and the leveling shovel, and when stones appear, the slope plate can press the stones downwards, so that small stones can be leveled on the land.

The application discloses an auxiliary driving control method of a excavator, and belongs to the technical field of engineering machinery. The method solves the defects of the traditional excavator in the prior art, such as complex operation, fatigue of the handle after long-time operation, and poor operation effect of land leveling and slope repairing. The controller receives the voltage signal output by the sensor module in real time, converts the voltage signal into a displacement signal, and outputs the displacement signal to a display. The controller receives the auxiliary driving related parameters transmitted by the display, executes corresponding algorithms, calculates the current vehicle body posture of the excavator according to a mathematical model of the whole machine, obtains the required movement speed and movement direction of the swing arm, the bucket rod and the bucket according to a preset algorithm, and the required hydraulic oil flow. The controller converts the required movement speed and movement direction of the swing arm, the bucket rod and the bucket into a current signal and a digital signal, and outputs the current signal and the digital signal to a hydraulic system module and a power module. The controller receives the signal of an electric control handle to determine whether to start controlling the action of the excavator. The application is mainly used on the excavator and other engineering machinery.

The utility model relates to a width-adjustable land leveler, and belongs to the field of land leveling machinery. The fixed soil scraping shovel is arranged on the suspension frame; the two movable soil scraping shovels and the fixed soil scraping shovel are arranged in parallel; the driving mechanism is connected with the two movable soil scraping shovels and drives the two movable soil scraping shovels to move in the width direction of the fixed soil scraping shovel; according to the technical scheme, the one-time land leveling width of the land leveler can be adjusted, the land leveling efficiency can be improved, the width of the scraping shovel can be adaptively adjusted according to different land widths, and various application requirements are met.

1. The name of the designed product: land leveler (760). 2. The use of the designed product: land leveling, road finishing. 3. The design points of the designed product: the combination of shape and color. 4. The picture or photo that best shows the design points: perspective view 1. 5. The design includes color. 6. The bottom surface of the designed product is a part that is not easily visible or invisible during use, and the top view is omitted.

The invention relates to the technical field of agricultural mechanical equipment, and discloses an agricultural combined type multifunctional land leveler which comprises self-adaptive mechanisms located on the two sides of a main machine frame and used for enabling land leveling equipment to form an inclined structure aiming at to-be-operated land leveling equipment; the carrying and dragging mechanisms are located at the four ends of the main machine frame and used for overall displacement and transportation of the equipment. The cleaning and leveling mechanisms are located on the two sides of the main rack and matched with the first cantilever to fix and install the leveling structure. The recycling and fragmenting mechanism is located in the clearing and leveling mechanism and used for clearing vegetation in the to-be-leveled area in cooperation with the extension arm, the bearing pedestal and the belt driving piece. Meanwhile, by means of the trailer rod, the vehicle application cost can be reduced, the needed manpower resource and equipment cost are reduced, the agricultural land leveling device is relatively easy to operate and is mainly driven through a hydraulic system and a motor, an operator only needs to conduct simple control and supervision, complex technical operation is not needed, and the operation difficulty and risk are reduced.

The application provides an intelligent folding water field beating and land leveling machine and relates to the technical field of agricultural mechanical equipment; the machine comprises a mounting frame, a lifting protection unit mounted on the mounting frame, a lifting frame mounted on the lifting protection unit, a beating and land leveling unit mounted on the lifting frame and a telescopic assembly mounted on the beating and land leveling unit; the lifting box and the sliding sleeve are driven to stably lift along the first vertical sliding rod through the first hydraulic cylinder telescopic end, the side baffle of the lifting box drives the horizontal guide column to slide in the vertical guide groove and the inclined guide groove of the turnover guide seat, the two mud-proof shells can be unfolded or folded, the double-hydraulic-cylinder driving of the existing equipment is replaced, meanwhile, the limiting groove body at the bottom of the lifting box is inserted and matched with the rectangular block at the top of the mud-proof shell during the beating operation, the mud-proof shell is transversely limited, the unfolding or folding of the beating and land leveling unit and the limiting and fixing during the operation can be realized through a single first hydraulic cylinder, the manufacturing cost is reduced and the machine is more in line with the development requirements of intelligent agricultural power machinery as a whole.

The invention belongs to the technical field of land levelers, and particularly discloses a land leveler for tunnel construction, which comprises a suspension bracket, a machine table, a gearbox, a fixed disc and a spiral conveying auger, the rear end of the suspension bracket is fixedly connected with the fixed disc, a corner mechanism is arranged above the fixed disc, the lower end of the corner mechanism is connected with the machine table, and the lower end of the corner mechanism is connected with the spiral conveying auger. A fixed baffle is fixedly installed on the outer wall of the front end of the machine table, the gearbox is fixedly installed in the middle of the outer wall of the fixed baffle, a soil leveling shovel plate is fixedly installed below the outer wall of the fixed baffle, connecting bases are symmetrically installed at the two ends of the outer wall of the fixed baffle, and a rectangular frame is jointly installed below the two connecting bases at the same end. According to the soil leveling and supplementing device, when the interior of a tunnel is leveled, soil leveling and soil supplementing integrated operation can be completed, the tunnel ground flatness and the operation efficiency are improved, and the soil leveling and supplementing device is suitable for complex tunnel scenes.

The present application relates to the field of engineering machinery, and discloses a kind of field road finishing vibration soil breaking land leveling device.The device includes arc back plate, inner side is equipped with arc-shaped shovel and broken lining, outside elastic connecting beam is connected with rotating support and soil breaking roller;Rotating support is equipped with second hydraulic motor, and the roller is driven by planetary gear drive mechanism, the rotating shaft in the roller is equipped with eccentric weight, and the device is connected with traction carrier through the connecting mechanism containing bow-shaped beam and triangular support, is equipped with hydraulic lifting, angle adjusting and buffering component, the outer wall of the roller has spiral scraper, and can be integrated paving and breaking, when encountering large block of soil and stone, the magnetic coupling slips and vibrates, prevent soil and stone accumulation, improve work efficiency and adaptability to complex terrain.

1. The name of the design product: excavator. 2. The use of the design product: used for digging, loading, land leveling and other work. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: front view.

The utility model relates to the technical field of land leveling, in particular to an efficient land leveling device for land reclamation, which comprises a traction device and a first cross rod, the left side of the lower end of a second cross rod is fixedly connected with a second shell, and a land leveling structure is arranged in the second shell. Through cooperation of the soil turning structure and the land leveling structure, an output shaft of a first servo motor rotates to drive a threaded rod to rotate, the threaded rod rotates to drive a threaded block to slide on a first sliding rod, an inclined plate moves to drive a triangular shovel to turn soil bags, and the shape of the triangular shovel has good soil penetrating performance and soil turning effect; an operator can adjust the downward pressing force of the round roller according to the type of soil and actual operation requirements, the pressure can be properly reduced on the soft soil, the situation that the soil is excessively compacted to affect the air permeability of the soil is avoided, and the pressure can be increased under the condition that the soil is hard or higher flatness is needed, so that the soil is more fully compacted and flattened.

The invention relates to the technical field of agricultural machinery, in particular to precise film mulching and seeding equipment and a platform operation method, and aims to solve the problems of low agricultural material carrying efficiency, insufficient mulching film laying precision and the like in traditional seeding. A soil preparation device, a drip irrigation belt laying device, an electric drive film feeding device, an automatic film and belt breaking device and a seeding device are arranged on the machine frame in the traction direction, an operation platform and a seed uniformizing box are arranged on the upper rear portion of the machine frame, all the core assemblies are controlled through the electric drive film feeding device, the automatic film and belt breaking device and the seeding device, the operation platform and the seed uniformizing box are arranged on the upper rear portion of the machine frame, and all the core assemblies are cooperatively controlled through a controller bus communication interface. The operation platform and the seed uniformizing box improve the agricultural material management efficiency, optimize the agricultural material storage and carrying mode, improve the self-adaptive capacity of mulching film laying, improve the seed distribution uniformity, achieve automation of film and belt breaking operation, reduce manual intervention and improve the operation continuity and the overall efficiency.

The application discloses a double-control multifunctional laser land leveler and relates to the technical field of laser land levelers. The double-control multifunctional laser land leveler comprises a machine body, a scraper fixedly connected to the side surface of the machine body, a plow frame fixedly connected to the side surface of the machine body, a soil loosening assembly arranged on the plow frame, a through hole arranged on the scraper, a conversion assembly arranged in the through hole, a fixed plate fixedly connected to the side surface of the scraper, and a soil pressing assembly arranged on the fixed plate. The double-control multifunctional laser land leveler is provided with the soil loosening assembly, so that the soil is loosened before land leveling, and then the soil is pushed to be flat, thereby reducing the resistance of the scraper, prolonging the service life of the scraper, and generating vibration when the soil loosening assembly loosens the soil. The conversion assembly transmits the force generated by the vibration to the soil pressing assembly, so that the soil pressing assembly presses the soil after the land leveling, improves the flatness of the land, and strengthens the land leveling effect.

The invention belongs to the technical field of agricultural machinery, and discloses a multifunctional paddy field stubble-burying and pulping land leveler which comprises a supporting shell, a soil crushing assembly is fixedly mounted on the inner side of the supporting shell, a control assembly is arranged at the upper end of the supporting shell, and a land leveling assembly is fixedly mounted on the side, close to the control assembly, of the supporting shell. A driving part is fixedly installed at the top of the supporting shell, a fixing frame is fixedly installed at the top of the supporting shell, the soil crushing assembly comprises a first connecting shaft and a second connecting shaft, and a rotating unit is fixedly installed on the outer wall of the first connecting shaft. Through the cooperation of the rotating unit, the connecting unit and other structures, after the rotating unit cuts and throws rice stubbles, the rigid comb teeth of the connecting unit vibrate and move, the rigid comb teeth gradually insert the pulled rice stubbles into soil, the rice stubbles are effectively grabbed and raked and pressed downwards into the soil layer, forced deep burying is achieved, and the rice stubbles can be deeply buried. And meanwhile, the vibration effect is beneficial to crushing soil blocks.

The utility model discloses a land reclamation leveling device which comprises a bucket and a mounting frame, the mounting frame is arranged at the top of the bucket, the surface of the bucket is provided with an assembly adjusting mechanism matched with the mounting frame for use, and a material distribution plate is arranged on the rear side of an inner cavity of the bucket in a sliding mode. The front side of the material distribution plate is fixedly connected with a plurality of spacing blocks at equal intervals. According to the land improvement and leveling device, the material distribution plate and the spacing block which do reciprocating motion are arranged in the bucket, so that the material distribution plate and the spacing block can relatively and uniformly throw crushed soil shoveled into the bucket into the land through reciprocating motion, and then the land pit is made up, and then the mounting plate and the material shifting rod are arranged on the front side of the material distribution plate, so that the material distribution plate and the spacing block are convenient to mount. The material stirring rods can move along with the material distribution plate, and then relatively stir fed materials at the top of the conveying belt, so that the materials at the top of the conveying belt can be relatively flat, and follow-up discharging is facilitated.

The invention provides a land leveling soil dressing quality detection device with a stratified sampling structure, and relates to the technical field of soil detection, the land leveling soil dressing quality detection device comprises a positioning ring sleeve, the inner side of the positioning ring sleeve is provided with two guide vertical grooves at opposite positions; a sampling vertical rod is mounted on the inner side of the positioning ring sleeve in a sliding manner; a traction inner rod is mounted in the sampling vertical rod in an up-down sliding manner; the traction inner rod further penetrates through the sliding partition plate, and a supporting plate is rotationally installed on the outer side of the traction inner rod. And a storage cover is rotationally mounted at the side end of the supporting plate. The traction inner rod is pulled upwards to drive the storage cover to extend out and be inserted into soil, so that different layers of soil dressing can be sampled by moving downwards at one position, mixing of different layers of soil is effectively prevented, the sampling accuracy is ensured, and the problems that multiple times of gradual downward sampling are performed at the same detection point, the upper soil falls to the lower part, and the sampling efficiency is high are solved. The problem that soil components in different positions are mixed in soil samples taken out from the lower part is solved.

The application discloses a folding land leveler frame structure and a land leveler, and relates to the technical field of land leveling equipment. The frame structure takes a traction beam as a longitudinal trunk, a walking beam is vertically fixed to one end of the traction beam, and the two ends of the walking beam are respectively hinged to a horizontal folding beam one of a left turnover frame and a horizontal folding beam two of a right turnover frame. Two horizontal folding beams are respectively hinged to turnover working frames which can be upwardly folded and turned over, thereby forming two states of unfolded working and folded and transported. When folding, lifting type walking wheel groups and lifting type supporting wheel groups on both sides are synchronously lifted to make working parts leave the ground, and then two-stage width reduction actions of horizontal folding and turnover folding are sequentially performed, and after folding, the lifting type walking wheel groups can support walking and transportation, and the requirements of wide working and convenient transportation are met.

The present application relates to grape uprooting and land leveling equipment field, a kind of adjustable grape uprooting and land leveler includes uprooting body and land leveling body, bilateral hollow aperture platform, hollow aperture adjusting plate, fixed screw, the regulator of adjusting infrared hydraulic uprooting device, bolt connection assembly, connecting hole, connecting chain, aperture adjusting plate, fixer, aperture adjusting rake.The present application increases or reduces the working width of left and right adjusting upper plate and infrared obstacle avoidance hydraulic device uprooting device, and the newly uprooted uneven land is leveled at the same time, the uprooting speed is fast, the uprooting is clean, the grape damage is small, the land is leveled, the manual uprooting labor is reduced, the production cost is saved, the uprooting efficiency is improved and the uprooting time is accelerated to promote grape balanced growth.

The utility model belongs to the technical field of tillage equipment, and particularly relates to an adjustable line-shaped harrow which is applied to a four-wheel riding type mini-tiller and comprises a connecting frame, a first adjusting assembly, a second adjusting assembly, a resistance rod and a harrow body which are installed at the rear end of the four-wheel riding type mini-tiller, and the harrow body and the resistance rod are both installed on the connecting frame. The first adjusting assembly is used for adjusting the height of the rake body, and the second adjusting assembly is used for adjusting the height of the resistance rod. The utility model further relates to a four-wheel riding type mini-tiller which adopts the harrow body. The utility model aims to provide a four-wheel riding type mini-tiller land leveler which can be connected with a four-wheel riding type mini-tiller by arranging a connecting frame, can adjust the height of a resistance rod or a harrow body by arranging a first adjusting assembly and a second adjusting assembly, and can be suitable for land leveling and weed removal in various farming environments.