109 results about "Rockdust" patented technology

The wind power mineral separator comprises a supporting frame, a winnowing cavity, a wind cavity and a circulating wind pipe, the winnowing cavity is installed on the supporting frame, the interior of the winnowing cavity is hollow, a feeding hopper is arranged on the top of the winnowing cavity, and a sand discharging opening and an opening are formed in the bottom of the winnowing cavity; the air cavity is installed on the supporting frame, the interior of the air cavity is hollow, a fan is rotationally arranged in the air cavity, and one end of the air cavity communicates with the winnowing cavity; air flow blows passing minerals when passing through the winnowing chamber, and according to the principle that different specific gravities are different and transverse moving distances are different when the air flow is blown by uniform-speed equal-quantity air, different minerals finally have different falling points on a material plate, so that separation is achieved, and meanwhile dust blown by the air flow is separated by the air flow. Heavy gravels and the like are discharged from the sand discharge port, and light dust flows back into the air cavity from the circulating air pipe along with airflow, so that the dust circulates in the device, and the dust is prevented from rising.

The utility model relates to the technical field of raised dust treatment, in particular to a raised dust treatment device for constructional engineering, which comprises a raised dust treatment component, the raised dust treatment component consists of a plurality of partition board water sprinkling components, and the raised dust treatment component is used for separating a construction area from a residential area; the partition plate water spraying assembly comprises a fence partition plate, a water spraying assembly and a water spraying assembly, the water tank is arranged based on the fence partition plate and used for storing water; the water guide pipe is used for connecting all the water tanks, and the water tanks are connected in series through the water guide pipe; the water outlet tank and the flow guide assembly are arranged on the side, away from the construction area, of the fence partition plate; water in the water tank is guided into the water outlet tank through the flow guide assembly; the water outlet tank is provided with a first water spraying pipe for dust falling and a second water spraying pipe for preventing dust from overflowing, the first water spraying pipe and the second water spraying pipe are independently used, and the problems that a traditional fence is poor in dust isolation effect, and dust still overflows are solved.

The utility model discloses a negative pressure dedusting roller screen which comprises a feeding cyclone, a dedusting roller screen and a main auger, one side, close to the feeding cyclone, of the main auger is of a solid structure, and the other part of the main auger is of a hollow structure. The centrifugal fan is connected with the dust receiving lower plate, the auxiliary packing auger is rotatably installed in the dust receiving lower plate, and the dust removal roller screen and the main packing auger are opposite in rotation direction. The dust removal device relates to the technical field of roller screens, negative pressure is formed on the surface of the dust removal roller screen through the centrifugal fan, dust can be rapidly sucked away, the dust removal efficiency is greatly improved, and the dust removal efficiency is improved. The soil content in the straw is effectively reduced, the requirement of forage grass production on the straw quality is met, and the health of livestock is guaranteed; the rotating direction of the dust removal roller screen is opposite to that of the main auger, the problem that screen meshes are blocked by straw is avoided, meanwhile, the area of the straw passing through the roller screen is increased, the defects caused by size limitation of the roller screen are overcome, and the working efficiency of equipment is improved.

The utility model provides a kind of greenhouse greenhouse micro-sprinkling irrigation structure belongs to agricultural planting technical field, to solve the existing nozzle has water droplet, dust and water droplet combine, make dust plug nozzle, affect the normal use of nozzle problem, including irrigation pipeline, irrigation shroud, irrigation hose, mobile slider, irrigation nozzle, protective slider, pipeline telescopic mechanism and irrigation protection mechanism;The irrigation shroud is fixedly connected in irrigation pipeline lower side;The irrigation hose is fixedly connected in irrigation pipeline lower end surface;The mobile slider is fixedly connected in irrigation hose lower end surface;The protective slider is slidably connected in irrigation shroud inside;The pipeline telescopic mechanism is arranged in irrigation shroud inside;The irrigation protection mechanism is arranged in irrigation shroud inside.By adopting pipeline telescopic mechanism, the range of height spraying water according to irrigation nozzle is realized conveniently, by adopting irrigation protection mechanism, the service life of irrigation nozzle is guaranteed.

The invention discloses an outdoor acre measurement device with a dustproof and waterproof shell, and belongs to the technical field of outdoor acre measurement, the outdoor acre measurement device comprises a fixed frame, an adjusting groove is formed in the fixed frame, a lifting rod is arranged in the fixed frame, a locking nut is arranged between the lifting rod and the fixed frame, and the adjusting groove is formed in the fixed frame. A rotating shaft is installed at the bottom of the fixed frame, rolling wheels are connected to the rotating shaft, a handle is arranged at the top end of the lifting rod, a fixed cover is installed on the lifting rod, and a rotating shaft is arranged on the lifting rod. The device is provided with a double protection structure of the fixed cover and the rotating protection cover, the rotating protection cover can be flexibly opened and closed through the rotating shaft, the closed rotating protection cover and the lantern ring form a tightly-attached protection space, the dustproof and waterproof grade is improved to the IP67 grade, rainwater and dust can be effectively prevented from invading the interior of the acre measuring instrument, and the equipment failure rate is reduced. Meanwhile, the rotary protective cover and the lifting rod form a detachable structure through the lantern ring, only the protective cover needs to be taken down during maintenance, and operation is convenient and fast.

The application discloses a kind of tunneling dust removal fan integrated mobile support, belong to tunnel dust removal device technical field, it is a kind of tunneling dust removal fan integrated mobile support, including device base, the device base front side is fixedly installed with suction box, the front side of the suction box is fixedly installed with telescopic piece, by being provided with the structure of shell body, in the process of using, by shell body and inner shell, dust passing through can be accumulated and intercepted, when dust accumulation clogs screen plate, first contact piece and second contact piece on the lower side of inner shell will be contacted, trigger alarm, so as to prompt operator to clean dust removal pipe, by the structure of rotating member in society, servo motor can control rotating member and dust removal pipe overall rotation, can directly pass through side ventilation slot to the inside of dust removal pipe is back-flushed and cleaned, convenient and fast dust removal, simple structure, no complex electric control, meet underground explosion-proof, anti-interference requirement.

The utility model relates to the technical field of auxiliary equipment of a mixing station, in particular to a rainwater collection system of the mixing station, which comprises a main recovery system, an auxiliary storage system and a mixing assembly, the upper ends of the first vertical rods are fixedly connected with the four ends of the lower side of the first canvas collecting water bucket, a first upper transverse rod is arranged between every two adjacent first vertical rods, the two ends of each first upper transverse rod are fixedly connected with the upper portions of the first vertical rods through first fixing blocks, and first lower transverse rods are arranged at the lower ends of the first vertical rods. Rainwater collected by the first canvas collecting water bucket and the second canvas collecting water bucket is filtered, and when the first filtering valve and the filtering shunt valve are blocked by dust and sand, the first filtering valve and the filtering shunt valve can be screwed off to be cleaned and then installed back to continue to filter and collect the rainwater. Therefore, the influence on collection and storage of rainwater due to incapability of cleaning the blocking substances is avoided.

The utility model relates to the technical field of roadway dust removal, and discloses a dust removal device for coal mine safety production, which comprises a filter box, an air exhaust mechanism, a collection box, a bottom plate, a fine filter screen, a cleaning mechanism and an exhaust pipe box control panel. The dust removal device is simple in structure and high in creativity, dust in an area is efficiently removed by conducting multi-layer screening and settling on sucked dust, meanwhile, the cleaning assembly is arranged to clean the filter screen in the device, the service life of the device can be prolonged, manual cleaning of the filter screen can be avoided, and time and labor are saved.

1. Name of the designed product: dust collector (blowing and sucking). 2. Use of the designed product: for processing dust, dirt, hair and similar foreign matters. 3. Design points of the designed product: in the front view. 4. Picture or photo best indicating the design points: front view.

The invention belongs to the technical field of grain processing, and particularly relates to a production method capable of synergistically removing aflatoxin B1 and heavy metal lead and cadmium in grain processed products such as corn and rice. The method comprises the following specific steps: (1) carrying out primary treatment on grain processed products such as corn or rice, and screening and removing impurities such as dust, stones and gravels when necessary; (2) preparing alkaline water, and stirring the corn or rice in a stirring tank; the stirred alkaline water can be reused after being filtered and detoxified; (3) washing the corn or rice treated by the alkaline water with clear water, draining, and crushing into particles or powder; (4) preparing acid water, and stirring and cleaning in a stirring tank; the stirred acid water can be reused after being filtered and clarified; (5) washing with clear water after pickling, and draining; and (6) irradiating by using ultraviolet rays and microwaves or independently using microwaves, and packaging to obtain a finished product.

The utility model discloses a bucket type blast hole backfilling device, which relates to the technical field of blast hole backfilling devices, and comprises a working table, a revolving platform, a control frame, an image detector and a bucket mechanism, the revolving platform is rotatably arranged above the working table, and the surface of the revolving platform is fixedly connected with the bottom of the control frame; one side of the control frame extends to form an image detector, and a bucket mechanism is installed below the image detector. When the bucket type blast hole backfilling equipment works, dust can be identified through the image detector, the dust is positioned and sent to the control mechanism through the sensor, and the position and the angle of the bucket mechanism can be flexibly adjusted according to the distribution condition of the dust; according to the bucket mechanism, accumulated dust is loaded through the arrangement of the rotating platform and the hydraulic oil cylinders, transferring and transporting of materials are achieved, the dust transferring efficiency is greatly improved, blast holes can be backfilled rapidly and effectively, and the construction period can be shortened.

The invention belongs to the technical field of intelligent driving, and particularly relates to an intelligent driving decision-making system based on multi-modal sensor fusion, which comprises a multi-modal sensing layer, a data fusion layer, an operation decision-making layer and an execution control layer, and is characterized in that the multi-modal sensing layer comprises a laser radar, a visual camera group, a millimeter wave radar, a GNSS positioning module and an agricultural machinery special sensor group; according to the method, by setting a multi-modal sensor cooperation and agricultural scenario algorithm, in complex environments such as crop shielding, dust and rugged topography, the environment perception accuracy is greater than or equal to 96%, the obstacle recognition distance is greater than or equal to 50 m, the scene limitation of a single sensor is solved, and by improving the combination of EKF and a semantic attention mechanism, multi-source data space-time alignment and weight optimization are realized; the signal-to-noise ratio of the fused data is increased by more than or equal to 15dB, high-quality information support is provided for decision making, operation parameters can be dynamically adjusted according to crop types and soil conditions by setting a mixed decision-making framework, the path planning overlap ratio error is less than or equal to 3%, and the operation quality deviation is controlled within + / -5%.

This invention relates to the field of crane equipment technology, specifically a dust collection assembly, comprising: drive casters, a transmission mechanism, a dust collection mechanism, and a collection box. The drive casters drive the dust collection mechanism through the transmission mechanism, and the upper end of the dust collection mechanism is connected to the collection box. The dust collection mechanism includes a suction pipe, a plastic sheet, and a fan blade. The suction pipe consists of a straight pipe and an arc-shaped adapter. The arc-shaped adapter at the upper end of the suction pipe is located in and connected to the collection box. A plastic sheet is provided at the upper end of the suction pipe to cover the upper end of the suction pipe, and the upper end of the plastic sheet is hinged to the upper end of the suction pipe. The fan blade is rotatably connected to the straight pipe of the suction pipe through a centrally fixed rotating shaft. The output end of the transmission mechanism is connected to the rotating shaft in the middle of the fan blade to drive the fan blade to rotate. This dust collection assembly can be installed in existing cranes and can automatically clean dust from grooved tracks without the need for additional electric drive components.

The utility model relates to the field of coal slime transfer machines, in particular to a dust falling assembly based on a coal slime transfer machine, which comprises a conveying device, a moving device is arranged at the bottom of the conveying device, a spiral feeding device is arranged on the surface of the conveying device, and a protection mechanism is arranged at the top of the conveying device. According to the coal slime conveying device, the conveying device, the moving device, the spiral feeding device, the protection mechanism and the spraying and dust falling mechanism are used in cooperation, when the conveying device conveys coal slime, dust generated in the conveying process is shielded through the protection mechanism, and when the coal slime falls off from the conveying device, the dust is sprayed through the spraying and dust falling mechanism; according to the coal slime transfer machine, dust flying generated during working of the coal slime transfer machine is reduced, and the problems that when the coal slime transfer machine conveys coal slime, dust can be generated, and the dust can be blown away along with external wind power, so that the dust is inhaled into lungs by surrounding workers, and the body health of the surrounding workers is affected are solved.

The utility model discloses a tunnel construction three-waste purification device which is characterized in that an integration supporting box is fixedly clamped on the inner side of a treatment fixing box, a convex limiting block is welded at the top end of the integration supporting box, a connection limiting sleeve is welded at the side end of the integration supporting box, and a collection fixing frame is fixed at the top end of the inner side of the integration supporting box; a plurality of exhaust fixing pipes are symmetrically connected to the bottom end of the collection fixing frame in a penetrating mode at equal intervals, a treatment integration box is fixedly connected to the inner side of the integration supporting box, and injection fixing pipes are connected to the positions, corresponding to the collection net cage, of one ends of the treatment fixing box and the integration supporting box in a penetrating mode; the stirring motor is matched to drive the stirring frame water to rotate and push water flow to flow, air dust removal is achieved, the filter cylinder does not need to be repeatedly replaced, the operation complexity is reduced, the safety and stability of the operation environment are guaranteed, meanwhile, dust is stably absorbed and intercepted through water filtration dust removal, and the dust filtration effect and efficiency are improved.

This invention discloses a mobile intelligent dust collector and its intelligent control method, relating to the field of mobile dust collector technology. The mobile intelligent dust collector includes a mobile vehicle, with control components fixedly connected to the outer wall of the vehicle, operating components fixedly connected to the top of the vehicle, and a dust collection mechanism fixedly connected to the outer wall of the vehicle. The mobile intelligent dust collector uses an electric slider to drive a guide plate to circulate along a slide rail, actively scraping away dust adsorbed at the bottom of the filter plate, effectively preventing a decrease in ventilation efficiency due to dust accumulation. The inclined guide plate directionally pushes the scraped dust to the elastic sleeve area, and combined with the elastic pressure of a second spring, ensures that the dust is compacted and stably stored at the bottom of the dust collection box, significantly reducing the frequency of manual cleaning and maintaining continuous suction capacity.

The utility model relates to the field of rapid steel grit collection, in particular to a rapid steel grit collection device which comprises a bottom plate, movable wheels are movably arranged at the two ends of the bottom of the bottom plate, a supporting block is arranged on one side of the bottom plate, a movable cover plate is arranged on the bottom plate, and a push handle support is arranged on the supporting block. The movable wheels capable of flexibly steering are arranged at the bottom of the collecting device, so that the device is simple and flexible to operate, the magnet block with strong magnetic force is mounted at the bottom of the movable cover plate for collecting steel grit, and the steel grit is easily separated from sundries such as dust and wood chips in the collecting process by utilizing the magnetic force characteristic; the problems that steel grit doped with impurities cannot be directly used, manual grit screening is needed, and time and labor are consumed are solved, and the steel grit utilization rate is remarkably increased.

The invention discloses a modified polyaspartic acid dust suppressant as well as a preparation method and application thereof, and relates to the technical field of environmental protection. Wherein the dust suppressant is obtained by modifying polyaspartic acid with glycidyl methacrylate under a weak acid condition. The modified polyaspartic acid dust suppressant can generate high affinity with soil particles and mineral surfaces through a unique molecular structure (rich in carboxyl, double bonds and other functional groups), and the substance is combined with the soil particles, so that the wettability of soil can be increased, and under continuous irradiation of sunlight or ultraviolet light, the dust suppressant can be used for dust suppression of the soil. And a stable cementing layer can be formed, so that dust is effectively prevented from flying.

The invention relates to the technical field of dust falling, and provides a dust falling device and method for constructional engineering, the dust falling device for constructional engineering comprises an air-assisted spraying machine and a retaining wall, the retaining wall is used for completing enclosure, the dust falling device for constructional engineering further comprises a movable trolley, a water supply tank and an atomization spray head, the air-assisted spraying machine is arranged at the top of the movable trolley, and the water supply tank is arranged on the top of the movable trolley; an installation cavity is formed in the movable trolley, an adjusting structure for adjusting the spraying angle of the air-assisted sprayer is arranged on the installation cavity, the water supply tank is arranged in the installation cavity and communicated with the air-assisted sprayer, a plurality of traction reset structures are arranged on the surrounding wall, and each traction reset structure is correspondingly provided with an atomization nozzle. And a pipeline communication structure is arranged among the plurality of atomizing nozzles and is communicated with the water supply tank. By means of the technical scheme, the problem that in the prior art, when an air-assisted sprayer is singly used for spraying water mist, it is difficult to fully prevent dust from moving out of the enclosure range of constructional engineering is solved.

The utility model relates to the technical field of irrigation devices, in particular to an irrigation spray head structure for radish planting, which comprises a shell, a fixing frame is connected to the rear side surface of the inner wall of the shell, sliding grooves are symmetrically formed in the positions, close to the left side and the right side, of the top of the fixing frame, and a dustproof mechanism is arranged in the shell and comprises an air cylinder. Limiting strips are hinged to the top ends of the rotating plates, the tops of the limiting strips are attached to the bottom of the fixing frame and fixedly provided with sliding blocks in a welded mode, the sliding blocks are slidably connected with the inner walls of the sliding grooves corresponding to the sliding blocks in position, the tops of the sliding blocks are connected with sliding plates, and the bottoms of the sliding plates are attached to the top of the fixing frame. A dustproof plate is fixedly welded to the top of the sliding plate, and the bottom of the dustproof plate is attached to the top of the shell. According to the irrigation nozzle structure for radish planting, by arranging the dustproof mechanism, the device has a dustproof function, and the situation that subsequent use of the whole structure is affected due to blockage caused by external dust nozzles can be prevented.

The tunnel construction ventilation and purification device comprises a ventilation box, a dust filtering plate and a dust collecting groove, the two ends of the ventilation box are open, a mounting block is fixedly arranged in the ventilation box, the top of the mounting block is sunken to form a first mounting groove, and a second mounting groove is formed in the top of the ventilation box in a penetrating mode; the two ends of the dust filtering plate are inserted into the first mounting groove and the second mounting groove correspondingly, a top plate is arranged at the top of the second mounting groove, the dust filtering plate divides the ventilation box into a first cavity and a second cavity, a fan is arranged in the first cavity, and the dust collecting groove is formed in the bottom of the inner wall of the ventilation box and located below the dust filtering plate. A first inclined face is arranged on the side, close to the draught fan, of the dust collecting groove, and a cover plate used for opening or closing the dust collecting groove is arranged at the communication position of the dust collecting groove and the second cavity. And workers need to frequently replace and clean the filtering device.

The present application relates to coal production equipment technical field, specifically to a kind of anti-clogging coal machine dust spray device, including support frame, spray structure, adjusting structure and cleaning structure, wherein, support frame is fixed in the outside of coal drop point;Spray structure includes spray chamber and several dust spray head, the outside of the middle position of spray chamber is equipped with first moving block, and the two outer sides of spray chamber are respectively equipped with second moving block;Adjusting structure includes first drive motor, threaded shaft and several limit rods, first drive motor drives threaded shaft to rotate, first moving block is screwed on threaded shaft, and limit rod is movably sleeved on first moving block or second moving block respectively;Cleaning structure is used to clean spray chamber and dust spray head.The dust spray device of the present application can realize the purpose of dynamic adjustment of spray dust according to the height of coal gangue accumulation at coal drop point, and can also effectively reduce dust on any horizontal plane at coal drop point in other directions except conveying direction.

The utility model belongs to the technical field of cashmere dust removal processing, and particularly relates to a cashmere round cage type dust removal device which aims at solving the problems that an existing dust removal unit cannot achieve a good impurity separation effect and is poor in dust removal effect and comprises a conveying cylinder, a scattering cylinder and a dust removal cylinder. According to the cashmere scattering device, agglomerated cashmere can be scattered and then fall into the conveying cylinder, and in the cashmere scattering process, some soil impurities attached to the cashmere can be separated; the spiral conveying assembly rotates to continuously turn over the scattered cashmere and convey the cashmere forwards, impurities in the cashmere can be further shaken out in the cashmere turning process, the impurities are discharged through an impurity discharging screen, and solid particle impurities of the cashmere are removed; the conveying cylinder is subjected to air exhaust through the air guide pipe, dust particles in the air can be adsorbed by the dust suction sponge column, and dust generated in the cashmere production process is removed.

The utility model provides a dust collecting device for a powder material ton packaging system. The dust collecting device comprises a dust collector, a confluence pipeline and a plurality of ton packaging machines. The dust collector comprises a dust collection shell and an air exhaust pipeline, an air exhaust fan is arranged on the air exhaust pipeline, a dust collection filter cartridge and a pulse filter cartridge dust remover are arranged in the dust collection shell, and a dust collection outlet is formed in the bottom of the dust collection shell; the ton packaging machine comprises an outer shell and a discharging mechanism, and a roller shutter door is arranged on the side face of the outer shell. The dust collecting device has the advantages that the roller shutter door of the dust collecting device can seal the ton packaging machine when the ton packaging machine works, so that kaolin dust is prevented from overflowing out of the outer shell, and harm of dust generated in the packaging process to a human body is reduced; and the dust collector can suck a large amount of kaolin dust generated in the discharging process of the ton packaging machine through the air exhaust fan, then the dust collector collects the sucked kaolin through the dust collection filter cartridge and the pulse filter cartridge dust remover, recycling of the kaolin is achieved, and waste of the kaolin is reduced.

The invention discloses a waste mulching film collecting device with a cleaning mechanism, and relates to the technical field of agricultural machinery, the waste mulching film collecting device comprises a vehicle body and a mulching film, an alum aqueous solution is filled in a cleaning tank, a water absorption mechanism is connected to a guide roller, the cleaning mechanism comprises a water pump, and a pair of cleaning brushes is mounted at the end, away from the water pump, of a splitter plate. According to the waste mulching film collecting device with the cleaning mechanism, an alum aqueous solution is injected into the cleaning tank of the vehicle body, water is sent out through a water pump, water flow impacts a splitter plate, vortexes in opposite directions are formed on the two sides of the splitter plate, a cleaning brush is driven to swing, dust on a mulching film can be conveniently cleaned down, alum enables dust particles to rapidly precipitate, and the cleaning efficiency is improved. A guide roller drives a sponge block to rotate so as to suck an aqueous solution on the mulching film, and a water pump adopts an adjustable-speed motor for output, so that a sliding ring slides in a reciprocating manner, the continuous deflection effect of a breast board is realized, and dust is conveniently shaken into a precipitation tank.

The application belongs to the technical field of tunnel flushing, and particularly relates to an adjustable flushing device, which comprises a compartment plate, a bottom plate is arranged on the compartment plate, the bottom plate and a mounting plate are fixedly connected through bolts, a driving motor is arranged on the mounting plate, and the driving motor is connected with a rotating connection variable assembly; the rotating connection variable assembly comprises a driving block arranged on the output end of the driving motor, and the driving block is connected with a driving groove arranged on a driving circular plate; the device has strong adaptability and high stability, can automatically adjust the extension length of the electric push rod and the hydraulic joint lever according to the liquid level of water in the water distribution tank, guarantees the flushing effect of dust and other objects in the tunnel in advance, guarantees the contact and collision effect of the contact square plate on the water distribution tank, avoids the reduction of the stability effect due to the change of the water liquid level in the water distribution tank, can correspondingly adjust the contact stability effect of the contact inclined block and the contact square plate, and improves the stability and alarm accuracy of the water distribution tank.

A dust control composition for application on unpaved or gravel roads, particularly in environments with significant heavy vehicle traffic such as mining operations, which includes an organic by – product derived from fermentation of sugar containing organic materials and yielding a dust control composition having a solids content of between 5 and 50 % by mass.

This invention relates to a biomass gasification system and method with dust removal function, including a gasifier, a burner, a raw material supply module, and a dust collection device. The raw material supply module is used to transport pulverized green waste or other biomass raw materials to the gasifier for gasification to generate biomass fuel gas. The inlet of the dust collection device is located near the outlet of the raw material supply module, and is used to extract dust entrained during the process of the raw material falling into the gasifier. The dust includes sawdust, glue fragments, and other lightweight combustible particles. The outlet of the dust collection device is connected to the oxygen supply path of the burner, and is used to introduce the dust into the burner to mix and burn with the biomass fuel gas. This invention, by constructing a closed-loop path of "dust extraction-reburning," can significantly reduce coking in the gasifier, improve gasification efficiency and burner temperature rise rate, achieve efficient recovery and utilization of dust energy, and enhance the overall operational stability and thermal output efficiency of the system.

The utility model relates to the technical field of soil remediation, and discloses an urban industrial waste land ecological remediation device which comprises a trolley, a speed reducer, a first rotating shaft, a rocker arm, a second rotating shaft, a scraper knife, an electric push rod, a first driving belt wheel, a first driven belt wheel and a first belt. The trolley comprises a frame. During use, the first driving belt gear is driven by the output end of the speed reducer to rotate. And then the first driven belt gear can be driven to rotate through the first belt. And finally, the multiple scraper knives are driven to rotate. And then the electric push rod is controlled to work to push the rocker arm to rotate and further drive the second rotating shaft to deflect. And finally, a plurality of scraper knives can be driven to be inserted into the ground to perform soil loosening operation. In addition, the electric push rod is adopted to replace a lead screw driving mode, and stable work in severe environments such as dust can be achieved. Meanwhile, the speed reducer, the electric push rod and the like are all located above the frame, so that dust attachment can be reduced, and smooth soil loosening work is further guaranteed.