53results about How to "Create novel structures" patented technology

The invention relates to a pig capturing device and belongs to animal husbandry machines. Universal road wheels and upright columns are mounted on an underframe, an L-shaped pig closing fence plates and a pig releasing door are separately hinged to the upright columns, a pig releasing door opening and closing control mechanism is made up of a pig releasing door opening and closing link, a pig releasing door opening and closing push rod seat, a pig releasing door opening and closing push-and-pull rod guiding sleeve, a pig releasing door opening lock pin, a pig releasing door closing lock pin and a pig releasing door opening and closing push-and-pull rod, and an L-shaped pig closing fence plate opening and closing control mechanism is made up of a pig closing fence locking control handle, a pig closing fence closing locking hook link, a pig closing fence closing lock pin, a pig closing fence closing lock hook and a pig closing fence closing lock hook resetting tension spring. The device is novel and reasonable in structure, high in capturing and transportation efficiency, free of injury to pig capturing persons, good in safety, labor-saving and timesaving in pig capturing operation and wide in applicable range.

The invention relates to a harvesting device for Chinese cabbage type crops and belongs to agricultural machinery. The harvesting device is characterized in that a grid type conveying belt assembly with a grid belt drive motor is assembled to a main frame, an assembly rack is hinged to the end of the main frame, two ends of a tension spring are respectively hooked to the main frame and the assembly rack; a cutting assembly formed by a shape cutting single frame, a shape cutting drive motor, a universal transmission shaft and a saw tooth type cutting disk assembly is hinged to the assembly rackin a swingable manner, a clamping conveying assembly formed by a clamping conveying single frame, a clamping conveying drive shaft, a clamping conveying drive motor, a clamping conveying belt rack, aclamping conveying belt clamping length adjusting rod, a clamping conveying belt tensioning wheel, a driven wheel and an outer toothed drive wheel is fixedly mounted on the assembly rack, and two ends of a dip angle adjusting mechanism are respectively hinged to the assembly rack and the shape cutting single frame. The harvesting device is novel and reasonable in structure, high in adaptability,good in harvesting quality, high in efficiency and reliable to use.

The invention discloses an elastic pile foundation resistant to frost heaving damage. A top connecting module is installed above a frost heaving buffering module, a gravity column module is installed below the frost heaving buffering module, a lifting disc capable of axially sliding in a supporting shaft is installed in the supporting shaft of the frost heaving buffering module, a first rotating shaft seat is fixedly installed on the edge of the lifting disc, the first rotating shaft seat is in shaft connection with one end of a supporting cross beam, the other end of the supporting cross beam is in shaft connection with a second rotating shaft seat, the second rotating shaft seat is fixedly installed on an elastic buffer strip, a buffer net is fixedly installed on the elastic buffer strip, a lead screw is installed in the top connecting module, a driven gear is fixedly installed at the top end of the lead screw, the driven gear meshes with a driving gear, and the driving gear and a crank rotating shaft are fixedly installed. The elastic pile foundation resistant to frost heaving damage can be adjusted according to the actual frozen soil depth of a project; the elastic pile foundation resistant to frost heaving damage can adapt to repeated freezing and thawing, effectively prevent frost heaving and frost pulling, and has a lasting effect; complete dismantling and recycling can be achieved, and the influence on the environment is small; and modularized assembly facilitates later maintenance, and the maintenance cost is reduced.

The invention provides a control valve for achieving quick pressure relief and same branch pressure in pesticide liquid spraying, and belongs to the field of agricultural machinery. A valve body is provided with a liquid inlet cavity, a liquid spraying cavity, a pressure releasing cavity and a pressure regulating cavity, and a box body and a spray head are installed at the upper end and the lower end of the valve body respectively; an installation plate, an upper limit switch and a lower limit switch are fixedly installed in the box body, and a motor fixedly provided with a drive gear, a duplex middle gear and a threaded shaft fixedly provided with a driving gear are assembled on the installation plate; a main shaft in inserted into the valve body, a limit rod, an upper clamp spring, an upper cone valve, an upper pressure spring, a middle cone valve, a middle clamp spring, a lower clamp spring and a lower cone valve are sequentially installed on the main shaft from top to bottom, a lower pressure spring is assembled on the lower side portion of the lower cone valve, the threaded shaft is in threaded connection with the main shaft, and a pressure regulating valve rod fixedly provided with a regulating rotary knob is assembled on the valve body and located in the pressure regulating cavity. The control valve is novel in structure and reliable in use, control operation is easy and convenient, the phenomena of leakage and dropping faults of the spray head can be effectively avoided and eliminated when pesticide liquid spraying operation is stopped, no pesticide liquid loss exists, the production cost is low, and the operation quality is good.

The invention provides a seedling raising pot tray with variable pot hole sizes and belongs to agricultural machinery. The seedling raising pot tray comprises tetrahedral pot holes, wherein each tetrahedral pot hole is defined by a pot hole bottom wall, a pot hole left side wall, a pot hole right side wall, a pot hole front side wall and a pot hole rear side wall, the pot hole front side wall and the pot hole rear side wall adopt a mutually symmetrically configured involute gear tooth surface shape, notches penetrate through the middles of the pot hole left side wall and the pot hole right side wall from top to bottom, each of the pot hole left side wall and the pot hole right side wall is divided into a front part and a rear part by the corresponding notch, the whole pot hole bottom wall adopts a cambered shape bulged towards the inner side of the pot hole, and a cross section of an upper connecting belt at the upper ends between the tetrahedral pot holes which are adjacent front and back is arc-shaped. The pot hole sizes are increased when pot seedlings are taken from the pot tray, the adhesion force between pot seedling nutrition media and pot hole circumferential walls of the seedling raising pot tray is reduced, and the seedling raising pot tray has the characteristics of novel, reasonable and simple structure, small seedling emergence resistance and convenience, rapidness and reliability in seedling taking, and is particularly suitable for mechanized farming.

The invention discloses a small seed potato shifting wheel type seed metering device, and belongs to agricultural machinery; a vertical inner side face and a horizontal upper end face of an L-shaped power driving box assembly are respectively provided with a seed shifting wheel in a rotating manner and a seed filling and supply column in an up and down telescopic moving manner; seed shifting rods are evenly distributed and arranged on the seed shifting wheel; a small seed potato box is arranged on the horizontal upper end face of the L-shaped power driving box assembly, and is located at the outer side part of the seed filling and supply column; the outer part of the upper end of the seed filling and supply column is in a cone shape; a hemispherical pit and a horizontal groove are formed in the upper end face of the seed filling and supply column; a seed metering conveying frame is arranged on the small seed potato box; the hemispherical pit has the diameter of 20 mm. The device has the advantages of novel and reasonable structure, accurate seed metering, low sowing leakage rate, low re-sowing rate, reliable operation and less failure, and meets the requirements of precise sowing.

The invention discloses an intelligent heat-insulating milk bottle which comprises a milk bottle body, a temperature detection part, a heating part and a control display panel. The milk bottle body comprises a bottle body, a bottle opening and a bottle cap, and the temperature detection part comprises multiple temperature sensors which are embedded on the inner wall of the bottle body and connected with the control display panel; the heating part comprises a heating disc and a heating resistance wire arranged inside the heating disc, the heating disc is arranged in the bottom of the bottle body, the heating resistance wire is connected with the control display panel, and the heating resistance wire is spirally arranged inside the heating disc. The intelligent heat-insulating milk bottle is novel in structure, diverse in function and capable of monitoring temperature, and can realize stirring during heating and heat preserving, thereby achieving good heat-insulating effect.

The invention discloses an automatic cutting and milling breaking device for waste fungus bag outer packing plastic films, and belongs to fungus production waste treatment technologies. The device ischaracterized in that multiple fungus bag clamping assemblies are fixedly arranged on a rotary belt of a rotary belt assembly, the fungus bag clamping assemblies are composed of assembly bases, cambered-surface-shaped clamping plates, pins and torsion springs, fungus bag axial positioning baffles are arranged on the front side portion of a device frame and located outside the two sides of the rotary belt assembly correspondingly, fungus bag end face disc type cutters are arranged on the middle portion of the device frame and located outside the two sides of the rotary belt assembly correspondingly, an end face cutter driving electric motor is connected with cutter shafts of the fungus bag end face disc type cutters, a fungus bag cylindrical surface roller type milling cutter is arranged onthe rear side portion of the device frame, a cylindrical surface milling cutter driving electric motors is connected with a cutter shaft of the fungus bag cylindrical surface roller type milling cutter, and a rotary belt assembly driving electric motor is connected with a rotary driving shaft of the rotary belt assembly. The device is simple and reasonable in structure, compact in overall size, high in automation degree and good in operation effect.

The invention discloses a novel soil grinding centrifugal type sieving device, which belongs to a civil engineering experimental instrument. The device is characterized in that a motor II at the upperpart of a loading bin drives a connecting rod IV and a grinding cone which are sequentially fixedly connected with the motor II, a turntable fixedly connected with a motor IV is arranged at the lowerpart of the loading bin and is provided with a motor V fixedly connected with a rocker arm and a plurality of discharge ports, and a discharge bin is arranged below each discharge port. The device integrates grinding and sieving, has a novel structure, is simple to operate, improves sieving efficiency, saves labor, and is safe and reliable in running and operation.

The invention provides a rice paper seedling plate stacked blank slicing machine and belongs to agricultural machines. A stacked blank positioning sliding groove is fixedly formed in the upper side of a rack assembly, a motor installation base is assembled at the upper end of the rack assembly and located on the feed inlet side of the stacked blank positioning sliding groove, a vibrating motor is installed on the lower side of the motor installation base, slideways are symmetrically and vertically arranged on the front side and the rear side of the rack assembly, the slideways are sleeved with sliding sleeves, a knife rest fixedly provided with N blades is arranged on the sliding sleeves and located on the inner side of the rack assembly, the knife rest is connected with the vibrating motor, the N blades are evenly distributed in a fence mode as a whole on the knife rest in the front-back direction of the rack assembly, and the distance between the adjacent blades is the same as the height of a rice paper seedling plate. By means of the machine, rice paper seedling plate stacked blank can be processed into high-efficiency high-quality sliced materials, and the machine has the advantages of being novel, reasonable and simple in structure, easy and convenient to operate and reliable to use.

The invention discloses an automatic moving greenhouse capable of realizing rainwater recycling and suitable for rain sheltering experiments of crops and belongs to the technical field of agriculturalequipment. The greenhouse mainly consists of a side plate track, a top plate track, a top plate module, a head module and a side plate module. The top of the head module is fixedly mounted with the side plate track, the side plate module is mounted on the side plate track through side plate sliding wheels, the top plate track is fixedly mounted on the side plate track, and the top plate module ismounted on the top plate track. The head module is internally provided with a circuit assembly which is connected with a side plate circuit assembly through information transmission between a first wireless transmission module and a second wireless transmission module. According to the greenhouse, the demands of automated experiments are met, and the problems of high construction cost and monotonous test conditions in the prior art are solved.

The invention discloses a plowshare type potato cultivator suspension, which mainly comprises a suspension body, couplers, diagonal rods and side plates. The suspension body is mainly formed by a crossbeam A, a crossbeam B, vertical beams and a hanging frame through welding. The couplers are welded to the front end of the suspension body, and the two diagonal rods are welded between the rear suspension crossbeam and the upper couplers. Each side plate is formed by a frame connection plate, front and rear adjustment plates, a retaining plate and a clamping plate, wherein the upper end of the frame connection plate is provided with two square ports to combine with square pipes of a frame and is used for connection with the two front and rear suspension crossbeams, upper ends of the front andrear adjustment plates are connected with the frame connection plate while lower ends are connected with the retaining plate, and the clamping plate is connected to the inner side of the retaining plate through bolts. The plowshare type potato cultivator suspension is capable of providing ploughing operations in different ground clearances and different widths according to different landforms anddifferent agricultural requirements and has advantages of simple structure, reasonable layout, convenience in adjustment, high universality and stability and the like.

The invention discloses an air-suction indent type roller seed-metering device capable of automatically clearing seeds, preventing blocking and adjusting the seeding rate, and belongs to agricultural machinery. A cylinder type seed filling cup is fixedly arranged in a pocket hole in an air suction pocket type roller, a suction nozzle body is axially and movably arranged in a cup hole of the cylinder type seed filling cup through threads, an air suction hole and a hollow cavity are coaxially and sequentially formed in the suction nozzle body in the axial direction and are communicated with each other, and the cylinder type seed filling cup is communicated with the hollow cavity through the air suction hole. A cross-shaped groove, a through hole and a limiting stop pin are respectively arranged on the suction nozzle body, a gravity rod which is coaxially and fixedly provided with a seed cleaning anti-blocking needle can be axially inserted into a hollow cavity of the suction nozzle body in a reciprocating motion manner, the seed cleaning anti-blocking needle is in insertion or separation insertion fit with an air suction hole in the suction nozzle body, and the gravity rod is in contact or separation contact fit with the limiting stop pin; according to the device, the seeding rate can be adjusted and changed according to different rice varieties and agricultural requirements, the application range is wide, the adaptive capacity is high, the seed filling, discharging and anti-blocking effects are good, the operation quality is high, and the use is reliable.

The present invention discloses a suspension connecting mechanism for agricultural implements and tractors and belongs to agricultural machinery. A middle part of a lower side of a triangular suspension seat body is inserted with an internal spline shaft sleeve with a bearing, a power input spline shaft and a power output spline shaft, a shaft seat is fixedly arranged on an outer ring of the bearing, an adjusting bidirectional hydraulic oil cylinder, a crank shaft and a locking bidirectional hydraulic oil cylinder are respectively hinged on a lower side and an upper side of the triangular suspension seat body through an oil cylinder seat B, a crank shaft seat and an oil cylinder seat A, a hook-shaped locking plate is arranged on a middle part of the triangular suspension seat body througha supporting pin shaft, a driving pin shaft connects the locking bidirectional oil hydraulic cylinder with the hook-shaped locking plate, upper suspension seats and lower suspension seats are fixedlyarranged on a front wall surface of the triangular suspension seat body, and an integral buckling cover of a triangular suspension connector provided with a locking plate hole is connected outside thetriangular suspension seat body into a whole. The mechanism has advantages of novel, unique and reasonable structure, simple and convenient operation, high connection efficiency, high speed, reliableconnection, safe use and strong applicability.

A cabbage harvesting and conveying table belongs to agricultural machinery; an elastic net rotary top-pressing belt assembly is arranged on the upper side part of a rack. Left and right rotating import conveying shafts, a hydraulic motor cutter assembly, left and right rotating clamping lifting conveying shafts and a rotating conveyer belt assembly are sequentially assembled from front to back onthe lower side part of the rack. The rear ends of the left and right rotating clamping lifting conveying shafts are connected with the front ends of the left and right rotating clamping lifting conveying shafts through a universal joint. A power input universal transmission shaft is connected with the rear ends of the left and right rotating clamping lifting conveying shafts. The front ends of theleft and right rotating import conveying shafts are hung on the front end part of the rack through a transverse shaft, a rod seat, a suspension rod and a U-shaped clamping seat; the conveying table is reasonable and simple in structure, low in manufacturing cost, good in harvesting operation quality, high in efficiency, reliable in use and strong in adaptability.

The invention relates to an omnibearing profiling suppressing single body, belonging to the agricultural machinery. The front end portion of a high-low profiling control beam is hinged onto a stander, the upper side surface and the lower side surface of the rear end part of the high-low profiling control beam is provided with a wheel frame with a suppressing wheel, a horizontal profiling control rod is respectively hinged at the left side part and the right side part of a suspension rod on the upper side part of the wheel frame, the horizontal profiling control rod is inserted in a bar-shaped through hole of a horizontal profiling control plate in a drawable manner, a pressure spring sleeves on the horizontal profiling control rod, the high-low profiling control beam is fixedly provided with a connecting plate, the rear end of a tension spring is hung on a connecting plate, the front end and the rear end of a lead-screw tension adjusting rod are respectively hinged with the front ends of the stander and the tension spring. The omnibearing profiling suppressing single body is novel, reasonable and simple in structure, convenient to adjust, when in operation, the suppressing wheel can make omnibearing profiling movement in the vertical and horizontal directions on the surface of ground, completes a suppressing operation, and is good in operation quality and high in applicability.

The invention discloses a hydraulic power self-lifting anti-flood wall. The hydraulic power self-lifting anti-flood wall is formed by sequential overlapped installation of a base layer, a lifting bottom layer and a lifting top layer under the cooperation of a sliding groove structure and a limiting structure. A supporting pillar I and a supporting pillar II are sequentially installed at the bottomend of the lifting bottom layer. A supporting triggering device and an air hole automatic adjusting device are installed in the lifting bottom layer. A reset spring bolt in the supporting triggeringdevice is connected with a position fixing support, a reset spring and a linking shaft, and the linking shaft penetrates a spring limiting beam to be connected with a rigid closed supporting structureII. The spring limiting beam is connected with the bottom end of the supporting pillar II through a spring. The hydraulic power self-lifting anti-flood wall is simple in structure, operation runningunder flood conditions is stable and reliable, the anti-flood height and the flow capability are improved, the anti-flood labor is greatly saved, and the peak shifting and preparing time is further provided for downstream flood fighting and emergency rescuing.

The invention discloses a semi-automatic soil saturator and belongs to civil engineering experimental apparatuses. A motor and a lead screw are arranged at the bottom in a saturator shell cavity; a driving gear and a driven gear are respectively and fixedly arranged on the motor and the lead screw; a cylindrical mold is assembled on the lead screw in an up-and-down moving manner; a vibratory tamper is fixedly arranged on the bottom end of a shaft lever and arranged in the cylindrical mold in an up-and-down moving manner; a soil sample chamber is formed by an inner cavity of the cylindrical mold and the saturator shell cavity on the lower part of the vibratory tamper; a vibrating rod sleeves the shaft lever in an up-and-down moving manner; and an electromagnetic coil is fixedly arranged at a position, which is positioned on the outer side of the vibrating rod, of the upper part in the saturator shell cavity. The saturator is novel, reasonable and simple in structure, the semi-automatic operation is realized, the operation is simple and convenient, the operators are saved, the labor intensity is low, the soil sample preparation precision is high, and the operation is stable and reliable.

The invention discloses a full-automatic controllable waterhead constant-flow water supply device, and belongs to civil engineering experimental apparatuses. Through cooperation of a circuit assembly,an air pump, a water pump, a plurality of electric control gates and all kinds of sensors, the device achieves flexible setting and a corresponding capability of stabilizing waterhead and prevents the defects that the waterhead is supplied unstably by traditional Mariotte bottles and the traditional Mariotte bottles cannot be used in a high temperature environment; the device is novel, reasonableand simple in structure, easy and convenient to operate, low in labor intensity, high in precision, stable and reliable during operation and running and capable of achieving automated operation, reducing operator number and ensuring the stable waterhead required by mating experiments.

A full automatic soil saturation device belongs to civil engineering experimental instruments; the full automatic soil saturation device is matched with a plurality of motors and all kinds of a plurality of sensors by a circuit assembly to realize automatic filling and piecewise compaction functions, by a rotary build-in blade, each stage of soil material compaction surface can be polished, the combination is more natural and more uniform; the full automatic soil saturation device is novel, reasonable and simple in structure, can realize automated operation, operation is simple and convenient, operating staff can be saved, labor intensity is low, soil sample preparation precision is high, and operation is stable and reliable.

The invention discloses a rural riverway water environment treatment simulation device and method and belongs to the field of water environment treatment test measurement. The channel module is composed of a channel and a rail fixedly installed on the channel, a crown block module is installed on the channel module, and an operation arm module is installed on the crown block module; one end of thechannel module is fixedly connected with the head module, the head module is composed of a head water tank and water outlet holes in the wall face of the head water tank, the other end of the channelmodule is fixedly connected with the water return module, and the water return module is composed of a filtering structure fixedly connected with a channel and a water collecting tank connected withthe filtering structure. An electric driving wheel, a Doppler flow velocity sensor and an ultrasonic water level sensor of the crown block module are fixedly installed at the bottom of a crown block shell, a medicine tank, a sediment tank and a water tank are fixedly installed on the crown block shell, and a circuit assembly is installed in the crown block shell. The device can be used for researching the effect of different application modes of the medicament on river water quality treatment in a high-simulation simulation environment, so that the manpower consumption of researchers is reduced, and the working efficiency is improved.

The invention discloses a heating system by utilizing shallow layer geothermal energy in a severe cold area and belongs to the clean energy utilization technology. A geothermal well is opened in a shallow layer with the depth of 150-200m underground in the severe cold area; an evaporator and an insulation bushing are installed in the geothermal well; a CO2 input pipe and a CO2 output pipe are assembled in the insulation bushing; the CO2 input pipe is wholly in a spiral body shape; the CO2 output pipe is arranged in the spiral body of the CO2 input pipe; the two ends of the CO2 input pipe communicate with the evaporator and an expansion valve respectively; and the two ends of the CO2 output pipe communicate with the evaporator and a compressor respectively. By changing the structural form of a traditional carbon dioxide heat pump unit, the heating system can still normally and efficiently run under the environment of the severe cold area with poor air temperature condition and has the characteristics of reasonable and simple structure, high price-performance ratio and supplying support for developing and applying the geothermal energy in the severe cold area.

The invention discloses a milk powder can for mixing and brewing. The milk powder can includes a first storage can, a second storage can and a collecting outlet, wherein the first storage can and the second storage can are arranged side by side; the bottom of the first storage can is provided with a first outlet, and the bottom of the second storage can is provided with a second outlet; the first outlet and the second outlet are each communicated with the collecting outlet. The milk powder can is novel in structure, separates milk powder to be stored, effectively ensures the quality of the milk powder, and facilitates mixing and brewing of the milk powder in the later stage.

The invention provides a continuous automatic lifting device for a cloth net type greenhouse seedling tray, and belongs to agricultural machinery. A frame assembly provided with ground wheels is provided with a power drive system, a net belt transport system, a to-be-transported seedling separation system and a seedling tray transfer system, wherein the power drive system is composed of a motor, aswing rod drive shaft, a transport roller drive shaft and first, second, third, fourth and fifth transmission belts, the net belt transport system is composed of a crank wheel, a swing rod, a grid-type vibrating plate, a net belt supporting wheel, a prismatic vibrating loosening roller, a net belt tensioning roller and a roll net roller assembly, the to-be-transported seedling tray separation system is composed of a seedling tray jaw-type transport roller, a seedling tray holding plate and a to-be-transported seedling tray comb tooth plate, and the seedling tray transfer system is composed ofa frame support shaft, a rotating frame, a hanging support rod, a cam, a roller, a pressure spring, a seedling tray transport comb tooth plate and a seedling tray transfer comb tooth plate. The device has the advantages of a novel, unique and reasonable structure, high automation of tray lifting operation, continuous tray lifting operation, high efficiency, a good tray lifting effect, reliable use and less failure, and provides a technical support for promotion of a cloth net type greenhouse seedling farming technology.

The invention creatively discloses a helicopter based on a gyroscope principle. The helicopter comprises a cockpit, an energy device, a first adjusting frame, a second adjusting frame, a support frame, and a plurality of power devices; the cockpit is arranged at the top of the energy device; the inner wall of the first adjusting frame is in sliding connection with the outer walls of the power devices through a pair of symmetrically-arranged adjustable pulleys; the inner wall of the second adjusting frame is in rotational connection with the outer wall of the first adjusting frame through a pair of symmetrically-arranged adjustable rotating shafts; the support frame is arranged at the bottom of the energy device; the plurality of power devices are uniformly arranged on the outer wall of the second adjusting frame. The helicopter creatively disclosed by the invention has the benefits that the structure is novel; with the help of the pair of adjustable pulleys and the pair of adjustable rotating shafts, the cockpit is kept horizontal, and a cab of the cockpit is over against the moving direction of the helicopter creatively disclosed by the invention; the safety performance is good, the driving of a driver is facilitated, and the dizziness of the driver and passengers is avoided.

The invention discloses an ice thickness monitoring device and method based on the principle of volume change of liquid-solid phase transition of a water body. The device is composed of an organic glass pipe and a steel pipe fixedly installed together through a waterproof threaded joint. A protective sleeve is fixedly installed outside the organic glass pipe. A scale is engraved on the organic glass pipe, and a foldable tripod is installed on the organic glass pipe. A reversible top cover is installed at the top end of the organic glass pipe. A ball valve is fixedly installed at the end of thesteel pipe. The protective sleeve is composed of a thermal insulation layer, a deformation layer not losing elasticity in an extremely cold environment and an anti-floating layer made of a high-density material. The monitoring method includes the following steps: drilling an ice hole and putting the equipment into the ice hole, injecting a water body, and injecting oil after the liquid level is stabilized; contacting the tail end of the steel pipe with the bottom of the ice layer, and fixing the tripod; and carrying out reading and calculating the ice thickness during monitoring. The ice thickness monitoring device has a simple structure, can run stably and reliably in extremely cold climate and save labor, and facilitates periodic observation at fixed monitoring stations.

The invention discloses a rice seedling raising carpet type plastic disc and belongs to the materials used for agriculture. Multiple potholes are uniformly formed in the rice seedling raising carpet type plastic disc, a through hole is formed in the bottom wall of each pothole, an enclosure frame is arranged on the lower side portion of the edge folding portion of the periphery of the rice seedling raising carpet type plastic disc in the vertical direction, the bottom end face of the enclosure frame is flat with the bottom end face of each pothole, a groove protruding upward is formed in the central position of the bottom wall of each pot hole and at the periphery of each through hole, and cross grooves protruding upward are formed at the periphery of the bottom wall of each pothole and at the outer side position of each groove. By means of the rice seedling raising carpet type plastic disc, the embellish gas containing moisture and oxygen in seedbed soil can be conveyed into the soil at the bottom of each pothole conveniently and reliably for being supplied to the growth of the seedlings, and the disc has the advantages of being novel in structure, reasonable, simple, good in seedling operation quality, few in operation faults and reliable to use.

A material self-cleaning and recovery device of a grain tubular dryer belongs to grain drying equipment. An inclination frame is mounted outside a tube hole of one end of an angular tube which is located outside the grain tubular dryer and located on the bottommost layer; a self-cleaning and recovery plate is installed on an upper end inclination part of the inclination frame; triangular conical blocking recovery plates are installed on two side end parts of the self-cleaning and recovery plate and between side wall plates of the grain tubular dryer respectively; triangular conical splitting plates are mounted at a middle part of the self-cleaning and recovery plate, between the side wall plates of the grain tubular dryer and between the adjacent angular tube holes located on the bottommost layer respectively; and a buffering padding plate is paved on the upper end face of the self-cleaning and recovery plate. The device has the beneficial effects that the structure is unique, simple and rational; manufacture cost is low; self-cleaning and recovery effects are good; occurrence of falling damage and species mixing of grains can be effectively avoided and eliminated; operation quality is guaranteed; assisting staffs are reduced; and operation cost is reduced.