814 results about "Ditch" patented technology

The invention discloses a device for simulating influence of ditch cleaning ice cover evolution on hydrodynamic parameters and an application method thereof, and relates to the technical field of ice water dynamics and hydraulic engineering experiments. The device comprises a low-level water tank, a high-level water tank, a centrifugal pump, a flow valve, a water tank, a steady-flow perforated plate, a ditch cleaning ice cover simulation device, a first water level control grid plate, a second water level control grid plate and a flow field measurement system. According to the invention, three key parameters of ditch cleaning length, ice cover submerging water depth and roughness of the bottom of the ice cover are independently regulated and controlled, and non-contact high-precision measurement is carried out by means of a PIV technology, so that systematic and refined research on hydrodynamic parameters of an ice cover ditch cleaning area is realized. According to the method, researchers can safely and systematically research the influence of a single variable on the ice cover ditch cleaning water power at low cost, and the fundamental bottleneck of traditional field measurement in the research is solved.

A three-dimensional parameterization design method for a side slope water interception and drainage ditch mainly comprises the steps that water interception and drainage objects are arranged on a three-dimensional side slope, and the water interception and drainage objects comprise two sub-objects of an axis and sections of different forms; drawing a ditch axis in the three-dimensional space; setting water interception and drainage section attributes; setting an axis control point, and associating section attributes; calculating a project amount according to the axis and the association attribute; and generating a two-dimensional profile map according to the interception and drainage parameters and the three-dimensional geological information. According to the method, a unique method of coupling a three-dimensional axis graph and a section parameter is adopted, the problem that the difference between the section size and the axis length of the ditch is too large in a conventional three-dimensional design is avoided, and the drawing quality of the ditch is kept good during sectioning; a parameterization + non-parameterization coupling sectioning technology is adopted, the problem that a BIM parameterization model and a GIM information model are difficult to integrate on the aspect of sectioning drawing based on a three-dimensional model is solved, and rapid drawing of a two-dimensional section of a slope intercepting and draining ditch on the basis of the three-dimensional model is achieved.

The invention discloses an identification and treatment method for a water and soil loss priority treatment area of a small watershed slope in a hilly area. The method comprises the following steps: calculating a small watershed soil erosion modulus and a sediment connectivity index, and carrying out geospatial modeling to form a soil erosion and connectivity partition identification priority treatment area; determining the land utilization type and terrain status of water and soil loss, and dividing functional zones from the spatial angles of an upper slope, a middle slope and a lower slope; a water and soil conservation forest is built in a forest and grass vegetation area on the slope or an abandoned cultivated land above a reclamation prohibition slope and a water and soil loss treatment area on the barren mountain and slope according to the principle of suitable land and suitable trees, and water and soil loss is prevented and controlled through natural restoration; water and soil loss prevention and control measures of slope land reclamation-hydrological network optimization and node control-grassland soil fixation and fertility increasing are adopted in a slope water and soil loss treatment area below the reclamation forbidding gradient in the slope; the slope bottom is provided with a plant filter belt, a tail end grit chamber and an ecological ditch measure for desilting and pollution reduction; the problem that a water and soil conservation treatment system in a small watershed is low in treatment degree is solved.

The utility model relates to a coke breeze treatment device for wet quenching of a coke oven, which comprises a clean water tank and a sedimentation tank, the clean water tank and the sedimentation tank are sequentially connected, two sides of the clean water tank and the sedimentation tank are provided with ditches, and the ditches are used for leading quenching water sprayed in a quenching tower back to the coke breeze sedimentation tank to form a closed loop, so as to complete the recycling of the quenching water. Concrete partition walls are arranged between the clean water tank and the sedimentation tank, between the ditches and the clean water tank and between the ditches and the sedimentation tank, openings are formed in the concrete partition walls, and water gates are arranged at the openings and connected with the control unit. The coke powder grabbing device has the advantages that the grabbing device walks on the track and grabs the coke powder of the settling pond and the clean water pond, the coke powder does not need to be cleaned manually, the operation environment of operators is improved, the labor intensity of the operators is reduced, the post of the coke powder grab bucket operator is canceled, manpower is saved, the enterprise cost is reduced, and the working efficiency is improved. Operators are prevented from being in contact with toxic and harmful substances, and the operation environment of the operators is improved.

The invention discloses a video recognition-based man-machine cooperative processing method for ditches and rivers in an urban area, and relates to the field of video recognition or understanding, and the method comprises the steps: constructing a data collection and analysis closed loop covering the whole periods before, during and after heavy rainfall: collecting images before and after treatment through an unmanned aerial vehicle and a camera before rainfall, generating a treatment operation influence map for quantitatively evaluating the treatment effect; in rainfall, the fixed camera is used for continuously monitoring the water level and the flow velocity; after rainfall, images are collected again, and the abnormal river reach is recognized. According to the method, camera data is taken as a boundary condition, a hydrological model is driven to perform inversion in combination with a governance influence map, missing heavy rainfall process data is deduced, and finally, accurate attribution of abnormal reasons is realized, and a differentiated governance scheme is generated. According to the method, the problem of monitoring data missing in severe weather is effectively solved, and quantitative evaluation of the treatment effect and scientific diagnosis of the abnormal cause of the river channel are realized.

The invention relates to the field of specific calculation models, and discloses a natural regulation type salinized soil desalination simulation and multi-objective optimization configuration method, which comprises the following steps of: 1, data acquisition and earlier stage processing; 2, constructing a water and salt migration model; step 3, simulation analysis and scheme optimization; 4, carrying out substitution model training and multi-objective optimization; the final scheme is directly used for guiding engineering implementation, and specifically comprises the steps of determining the terrain adjustment amplitude, the position and depth of a drainage ditch, the micro-topographic relief scale, the earth filling and digging volume and shallow guide and drainage path configuration. The method has the beneficial effects that the natural drainage capacity of regional underground water can be remarkably improved, the effect that evaporation drives salt to move upwards is weakened, the rainfall infiltration capacity is improved, and the natural leaching effect is enhanced. The method is suitable for areas such as mud flats, salt pans and natural reserves where artificial engineering measures are not suitable to be taken, and has the advantages of low cost, high stability, ecological friendliness and the like.

The invention discloses a layered backfilling and ecological regreening system for flow-state solidified soil of an anchoring ditch of a refuse landfill. The layered backfilling and ecological regreening system comprises a muck (weathered rock) pretreatment unit, a flow-state solidified soil production unit, an ecological regreening unit, a pumping backfilling unit and an intelligent regulation and control unit. According to the system, the structure reinforcing function and the ecological restoration function are successfully integrated, and a brand-new and sustainable engineering residue soil (weathered rock) resource utilization and ecological backfill solution is provided.

The invention discloses a watershed ditch and pond-road low-cost ecological sand control method based on hydrological connectivity, which belongs to the field of ecological environment protection and mainly comprises the steps of data acquisition, DEM data correction, confluence network construction, hydrological structure connectivity identification, SWAT model construction, key source area identification, scene analysis and cost benefit analysis. Under the influence of a ditch pond-road system, the key source area identification technology based on hydrological structure connectivity and the drainage basin key source area ditch pond road low-cost water regulation and soil conservation method achieve the dual purposes of reducing the water and soil regulation and control cost and continuously improving the ecological benefit by identifying the key source area.

The utility model belongs to the technical field of retaining wall, disclose a water conservancy building retaining wall, including retaining wall, backfill and concrete bottom plate, the retaining wall inside is equipped with the water outlet pipe, backfill inside is equipped with the drainage blind ditch, drainage blind ditch inside is equipped with the filter structure, drainage blind ditch is connected with the water outlet pipe through the connecting structure, set up drainage blind ditch and water permeable geotextile when backfilling backfill, reduce the water level of backfill layer upper end to drainage blind ditch lower end, the water of upper end is through drainage blind ditch and flows to water permeable net pipe, the silt that enters water permeable net pipe is reduced through the filtration of blind ditch gravel and geotextile, again due to the water of inside flow of water permeable net pipe can take away trace silt, thereby avoid the deposition of silt and cause the blockage, the water in water permeable net pipe is taken away through the water outlet pipe that is preburied in retaining wall, thereby reduce the hydrostatic pressure of backfill to retaining wall.

The invention relates to the technical field of seeding machines, in particular to a film mulching device and a film mulching hole seeding planter, the film mulching device comprises a traction rack, a mulching film roller is arranged on the traction rack, the mulching film roller is used for mounting a mulching film, the traction rack is used for driving the mulching film roller to advance, and the film mulching device further comprises two groups of soil covering assemblies which are respectively arranged on two sides of the advancing direction of the traction rack; the soil covering assembly comprises a ditching structure and a conveying structure, and the ditching structure is arranged on the traction rack and located in front of the mulching film roller. The conveying structure is arranged on the traction machine frame, the ditching mechanism is arranged in front of the mulching film roller, digging can be conducted on one side below the mulching film roller to form a groove, dug soil is conveyed to the position behind the mulching film roller through the conveying structure, the conveying structure conveys the dug soil to the side edge of a mulching film, and the side edge of the mulching film is pressed in the groove through the soil. The mulching film can be further compacted, the possibility of mulching film displacement during hole sowing is reduced, the probability of seedling pressing under the mulching film is reduced, and therefore the yield of crops is increased.

The utility model relates to the technical field of land ridging devices, in particular to a ridging device for planting traditional Chinese medicinal materials, which comprises two cross beam plates which are symmetrical to each other and fixedly mounted on an external frame, cylinders are fixedly mounted on the cross beam plates, and cross beams are arranged at the tail ends of telescopic shafts of the two cylinders. A vertically-arranged stand column is fixedly installed on the bottom face of a rod body at the front end of the cross beam, a ditching plow harrow is arranged on a rod body at the bottom of the stand column, a fixing column is fixedly installed on the bottom face of a rod body at the rear end of the cross beam, a U-shaped frame is fixedly installed at the bottom end of the fixing column, and side edge plates are fixedly installed on the bottom faces of plate bodies on the left side and the right side of the U-shaped frame. Inclined shoveling plates are fixedly installed at the bottoms of the two side edge plates, inclined soil dividing plates with inverted-V-shaped sections are fixedly installed at the rear ends of the inclined shoveling plates, and baffles are fixedly installed on plate bodies on the two sides of each inclined soil dividing plate. The ridging and ditch cleaning device facilitates ridging and cleaning of soil in ditches and is convenient to use.

The application discloses a bridge mechanism of an amphibious bridge and belongs to the technical field of transportation. The bridge mechanism is suitable for the amphibious bridge and comprises a bridge span. The bridge mechanism comprises two middle bridge joints connected with each other, has a V-shaped bottom shape, and has a top plane structure used for passing of driving equipment; two end bridge joints connected to two ends of the two middle bridge joints through a bridge joint turnover mechanism, the turnover mechanism is used for lifting up the end bridge joints as the fulcrum relative to the connecting position with the middle bridge joints; and a plurality of air bag assemblies symmetrically connected to the side of the middle bridge joint. The amphibious bridge combines the land dry ditch bridge and the water ferry, can overcome the dry ditch obstacle on land and the river obstacle on water, and meets the double needs of smoothly passing the water and land obstacles.

The application relates to the technical field of soil maintenance, in particular to a soil nutrient holding and applying integrated device, which comprises a fertilizer applying and preserving machine, a mixing assembly is installed on the fertilizer applying and preserving machine, the mixing assembly comprises a discharging barrel, two groups of discharging pipes are arranged at the lower end of the discharging barrel, a stirring rod is rotationally connected in the discharging barrel, and a plurality of first spray heads are arranged on the stirring rod. The two groups of bidirectional electric push rods are connected with the two groups of tail wings through mounting seats to realize active angle adjustment, simultaneously drive the two groups of tail wings to expand to adjust the ditch width, meanwhile, the two groups of bidirectional electric push rods are connected with the two groups of blocking plates through connecting rods to drive the two groups of blocking plates to open the discharging ports of the two groups of discharging pipes, the ditch width and the opening degree of the discharging ports of the two groups of discharging pipes are synchronously adjusted, the discharging amount and the ditch width can be accurately matched, the fertilizer application amount in unit ditch length is uniformly and stably ensured, the situation that the fertilizer is excessively applied or insufficiently applied is avoided, the adjustment operation is simplified, and the operation adaptability of the device and the consistency of fertilizer application and preservation are improved.

The utility model relates to a kind of communication structures of plant area road drainage ditch.It is applicable to water supply and drainage technical field.The technical scheme adopted by the utility model is: a kind of communication structures of plant area road drainage ditch, plant area road is staggered arrangement, the drainage ditch is arranged in road side, with: water guide ditch, transversely arranged in road, water guide ditch two ends are respectively connected with the drainage ditch of two roads staggered arrangement;Guide block, along water guide ditch length direction arrangement is in water guide ditch, guide block top is made with the water guide groove being set along water guide ditch length direction;Cover plate, arrangement is in guide block, cover plate can cover the opening of water guide ditch;Backfill, fill in the position of guide block around in water guide ditch.

The utility model discloses a passive blocking and protecting structure for ditch source collapse rolling stones, which comprises a multi-stage blocking structure arranged in a ditch and a buffer percolation structure arranged on the inner side of the blocking structure, the blocking structure further comprises a sheet-pile wall and a gravity type check dam, the sheet-pile wall is arranged at the lower part or the tail end of the ditch source collapse of the ditch, and the gravity type check dam is arranged on the lower part or the tail end of the ditch source collapse of the ditch. A multi-stage gravity type check dam is distributed in the channel on the front side of the sheet-pile wall; the blocking structure can be completely arranged to be a sheet-pile wall or a gravity type check dam. The blocking structure can be alternately provided with sheet-pile walls and gravity type check dam dams according to terrains; the buffering percolation structure further comprises a buffering layer, a rockfall groove and a percolation structure. Through the design of the blocking structure, the buffer layer and the percolation structure, the purposes of blocking rolling stones, draining ditch water and effectively preventing the ditch source from collapsing the rolling stones can be achieved.

The invention discloses a bottom plate and side wall separated assembly type concrete U-shaped groove drainage ditch, and relates to the technical field of municipal engineering and hydraulic engineering, a plurality of precast piles are installed in a groove, the precast piles are of a Z-shaped structure and are sequentially arranged in an attached mode, the end of each precast pile is provided with a reserved cavity, the reserved cavities are distributed in a pairwise clamping mode, and the precast piles are arranged in the groove. A longitudinal seam is formed above the attaching end of the reserved cavity, an arc-shaped seam is formed below the attaching end of the reserved cavity, the longitudinal seam and the arc-shaped seam are distributed in a staggered mode and connected through a transverse seam, an expansion rubber strip is embedded in the reserved cavity, and an expansion gasket is additionally arranged in the middle of the expansion rubber strip. The expansion gaskets are distributed on the inner sides of the transverse joints. The bottom plate and side wall separated fabricated concrete U-shaped groove drainage ditch disclosed by the invention has the effects of high use convenience and high work completeness.

The invention discloses an agricultural non-point source pollution treatment system, and relates to the technical field of agricultural environmental protection and water treatment, and the agricultural non-point source pollution treatment system comprises an ecological ditch unit, an ecological pond unit, a connecting pipeline and a control unit; the ecological ditch unit is used for carrying out primary pretreatment on sewage through a plant enhanced corridor and an ecological filter dam to remove suspended solids and part of pollutants; the ecological reservoir pond unit realizes deep purification through a multi-stage process of flocculent precipitation, enhanced denitrification, ecological treatment and a stable area; the control unit intelligently regulates and controls water flow based on water quality monitoring data, water reaching the standard is directly reused in farmland or lakes, and water not reaching the standard enters a pond to be further treated. According to the invention, stepped deep removal of pollutants, cyclic utilization of water resources and self-adaptive operation of the system are realized, and the treatment efficiency and stability are improved.

The invention discloses a camellia oleifera forest water and soil conservation method suitable for a hilly land, which comprises the following steps: carrying out partitioned soil preparation on the hilly land forest land, and arranging an intermittent ladder belt and an undisturbed soil belt in a slope cultivation area along a contour line; constructing a soil stabilizing structure and a water seepage buffer layer on the upstream side of the ladder belt to reduce corrosion and promote seepage; water collection slow-release ditches are arranged on the inner sides of the ladder belts for retaining and storing runoff; arranging a soil and water retention composite layer in the camellia oleifera planting pit; a desilting basin is arranged in the slope toe water collecting area to recover runoff; according to the method, the hilly land forest land is subjected to partitioned soil preparation, and the intermittent ladder belts and the undisturbed soil belts are arranged in the slope surface cultivation areas along the contour lines, so that slope surface runoff scouring can be weakened; a soil stabilizing structure, a water seepage buffer layer and a water collection slow release ditch are combined, so that runoff corrosion reduction and water retention are realized; the soil and water retention composite layers in the camellia oleifera planting pits are matched, so that the stability and the water retention capacity of the root zone can be enhanced, water and soil loss is effectively controlled under the condition that large-scale hard engineering is not needed, and the water utilization efficiency is improved.

The application discloses a seedling raising method for early rice and regenerative rice and relates to the technical field of agricultural planting. The technical points of the application comprise the following steps: S1, seed soaking and germination, through seed disinfection by sunning, seed soaking disinfection and seed soaking, the pretreatment before sowing is completed; S2, sowing, through ridge forming, tray arranging, sizing and sowing, the sowing treatment is completed; S3, seedling compartment disinfection, after sowing, before film covering, one-time spraying disinfection is carried out; S4, film covering, a bamboo arch is inserted around the seedling tray, and the film is covered on the bamboo arch; S5, drainage, the compartment ditch and the surrounding ditch are dredged, the clear water in the ditch is drained, and the moisture in the seedling compartment is drained. The application selects "cold tail and warm head" when the low-arch film is concentrated in the field, adopts direct sowing of the bright chest valley, creates good water, fertilizer, air and heat conditions, promotes uniform emergence, is convenient to operate, is a seedling raising method with the advantages of labor saving, easy operation, good safety and high uniformity.

The invention discloses a drainage system for a large-span arc-shaped metal roof of a coal shed and a construction method.The drainage system comprises a buttress, a top plate is arranged at the top of the buttress through a main purline, the main purline is obliquely arranged, the bottom end of the main purline is close to the buttress, and a triangular supporting frame is fixed to the outer side of the buttress; the surface of the triangular supporting frame is provided with a water diversion ditch, and the water diversion ditch is provided with a communicating groove corresponding to the top plate. The inner bottom surface of the gutter is inclined, the lower end of the inclined surface is far away from the buttress, and one end of the gutter is provided with an inclined panel extending downwards. The large-span roof drainage device has the advantages that rainwater is guided to the diversion ditches on the triangular supporting frame through the slope of the roof, the main diversion pipe and the secondary diversion pipe are connected with the main diversion holes and the secondary diversion holes in the diversion ditches respectively, graded collection and efficient diversion of the rainwater are achieved, smooth drainage of a large-span roof is guaranteed, and accumulated water is reduced.

The application provides a wheat wide seedling strip seedbed preparation device and a monitoring system thereof, which comprises a single fixed seat, a front ditch opener fixed seat, a front ditch opener, a fertilizer spreading device, an anti-abrasion plate, a rotary tiller group, a side plate, a soil retaining plate, a rear ditch opener, a soil humidity sensor, a metal water pipe, a profiling mechanism, a spring damper, a transmission box and a motor. The single fixed seat is provided with a through hole, and the single body is fixed to a seeding machine frame through U-shaped bolts. The seeding machine can be installed with multiple single bodies. The spacing between the single bodies is adjusted to adapt to the wide seedling strip seeding operation of different row spacings. The soil disturbance and power consumption during operation are reduced through wide seedling strip rotary tillage. The monitoring system comprises a rotary tiller group power distribution monitoring system and a lower irrigation monitoring system. The rotary tiller group power is automatically adjusted with the change of the forward speed and the working resistance, so that the seedbed preparation operation effect is improved. Through lower irrigation of the seedling strip, the problem of uneven emergence caused by the inconsistent soil moisture content of different plots in the field is solved.

The utility model discloses a novel furrowing machine which comprises a main frame, an extension frame, a front wheel, a vertical rod, a holding rod, a rear wheel rotating shaft, a bearing, a rear wheel, an electric box mounting plate, an electric control box, a reinforcing column, a positioning hole, a motor mounting plate, a connecting bolt, a motor mounting flange, a motor, a cutter wheel disc, a furrowing drill bit, a tooth-shaped furrowing block, a furrowing blade, a soil dividing plate, a connecting plate and a road pressing roller. Compared with the prior art, the three sets of motors are arranged to drive the cutter wheel disc, and the soil loosening and ditching efficiency is improved through the ditching drill bit, the tooth-shaped ditching blocks and the ditching blades; the soil dividing plate arranged at the tail part disperses soil to the left side and the right side in the ditch during movement, and is matched with extrusion of the connecting plate, and the channel pressing roller flattens the bottom of the ditch, so that the formed soil ditch is smoother.

The utility model relates to a drainage structure, in particular to a side slope drainage ditch structure which comprises an intercepting ditch and / or a side ditch arranged on a side slope, a self-dredging mechanism is arranged on one side in the intercepting ditch and / or the side ditch and comprises a water storage pool, a mud blocking wall is arranged on the top of the side wall of the side, facing the upstream side of the side slope, of the water storage pool, and the mud blocking wall is arranged on the side wall of the water storage pool. A hole is formed in the mud retaining wall, and a filtering device is arranged on the hole; a movable flashboard is arranged on the side wall of the side, facing the catchwater and / or the side ditch, of the reservoir, a floating ball is arranged in the reservoir, one end of a traction rope is connected with the floating ball, and the other end of the traction rope is connected with the movable flashboard through a pulley block. The anti-seepage drainage device is simple in structure, good in adaptability, good in anti-seepage drainage effect and low in maintenance cost, and has a self-dredging function.

This invention provides a composite ecological restoration system and method for agricultural non-point source pollution in lakes. The system includes several pre-treatment reservoirs located at the lake's edge, each including a sedimentation zone, a shallow water purification zone, and a deep water purification zone; several water quality improvement wetlands adjacent to the pre-treatment reservoirs; several ecological interception ditches located at the entry points of agricultural non-point source pollution into the lake; a shoreline ecological interception zone surrounding the lake and located along its shoreline; an ecological enclosure adjacent to the water quality improvement wetlands, within which a submerged plant restoration zone is arranged; several submerged plant restoration zones are located inside the ecological enclosure; and ecological floating islands are evenly distributed within the lake. This invention can effectively address the complex and variable nature of lake non-point source pollution, improve the treatment effect of lake non-point source pollution, and achieve the goal of treating different types of lakes.

The invention discloses an expansive soil side slope ecological protection system and a construction method, and relates to the technical field of side slope prevention and control, the expansive soil side slope ecological protection system comprises a side slope body, an intercepting ditch arranged at the top of the side slope body, a pouring groove at the slope surface and a drainage ditch at the bottom; a water inlet groove is formed in the intercepting ditch, the intercepting ditch is connected to a storage box installed in the side slope through the water inlet groove, and the storage box communicates with the slope surface irrigation groove through a water outlet hole formed in one side. Through the arrangement of the intercepting ditch, the storage box and the irrigation groove, efficient collection, storage and on-demand release of rainwater are achieved, slope expansion and instability caused by rainwater permeation in rainy seasons are avoided, the problem of water shortage of vegetation in dry seasons is solved, vegetation survival is guaranteed, the improved mixture and a microorganism mineralization system achieve the synergistic effect, and the ecological environment is improved. The expansibility of the expansive soil can be reduced, the strength of the soil body can be enhanced, solid waste resource utilization is achieved, environmental pollution is reduced, and integrated protection of soil body improvement, structure reinforcement and ecological restoration is formed in cooperation with the biological matrix improvement layer and the vegetation layer.

The invention relates to the technical field of pollution detection devices, in particular to a waterfront water and soil loss non-point source pollution detection device and method.The waterfront water and soil loss non-point source pollution detection device comprises a water and soil loss monitor, the water and soil loss monitor is installed on a supporting plate, the supporting plate is in lap joint with the top of a ditch supporting plate, and wire bunching arms are rotationally connected to the two sides of the supporting plate; the surface of the bunching arm is provided with a bunching groove, the connecting end of the water and soil loss monitor is connected with a wire, one end of the wire is provided with a sensor probe, and the wire and the sensor probe both extend into the bunching groove; the device has the advantages that the bunching arms rotationally connected to the two sides of the supporting plate are ingenious in design, the bunching arms can swing downwards to the bottom of the ditch supporting plate, and a sensor probe installed at one end of a wire can extend into a ditch to detect a flowing water source. Meanwhile, the bunching groove formed in the surface of the bunching arm provides an ordered placement space for the wire and the sensor probe, and the wire bunching arm is fixed through the cooperation of the bunching groove and the hand-twisted screw, so that the wire and the sensor probe are effectively prevented from swinging under the impact of water flow.

The invention discloses an intelligent induction solar acousto-optic warning device and a control method thereof, and relates to the technical field of safety warning. The device has good scene adaptability, and can be used in high-risk environments such as high-voltage lines, ditches and fish ponds. The device adopts a solar panel as an independent power supply and can stably operate for a long time in a remote area or an area without mains supply, the deployment flexibility is improved, and the maintenance cost is reduced; various dynamic lighting effects are achieved through the light warning modules arranged on the two sides, and the good warning effect can be kept at night and in the daytime; a microwave sensor is adopted to replace traditional infrared sensing, the influence of temperature change or light reflection is avoided, accurate detection of personnel approaching in high and low temperature and water surface environments is ensured, and safety and reliability are improved; after microwave induction is triggered, the loudspeaker can output preset or self-defined voice prompts, diversified warning requirements of different scenes are met, and efficient safety protection of acousto-optic linkage is integrally achieved.

The utility model provides a pond digging mechanism with smaller ditching resistance, and relates to the technical field of agricultural machinery. The pond digging mechanism comprises a connecting frame, pond digging assemblies and ditching pieces arranged on the two sides of the front end of the connecting frame, the number of the pond digging assemblies is at least one, each pond digging assembly comprises a center shaft and at least two pond digging shovels circumferentially arranged on the center shaft, the center shaft is transversely installed at the rear end of the connecting frame, and the ditching pieces are arranged on the two sides of the front end of the connecting frame. The furrowing device is characterized in that the furrowing piece is of a conical structure, the conical tip of the conical structure is arranged towards the front of the connecting frame, and guide faces for dividing soil towards the two sides of the furrowing piece are formed on the side faces of the two sides of the conical structure. In the ditching process, the ditching piece, the connecting frame and other structures are relatively not prone to deformation, the service life of the pond digging mechanism is prolonged, and the ditching effect is guaranteed.

The utility model discloses a planting furrowing device which comprises a frame, a bulldozing assembly and an engine, an installation frame is fixedly arranged on the top of the front side wall of the frame, a first fixed shaft is arranged on the front side of the frame, a transmission shaft and a movable frame are rotationally arranged outside the first fixed shaft in a sleeved mode, and an adjusting assembly is arranged on the installation frame. The outer side wall of one end of the transmission shaft is fixedly sleeved with a first chain wheel, the end, away from the first fixed shaft, of the movable frame is rotationally provided with a second chain wheel, the first chain wheel and the second chain wheel are wound with a first chain, and digging teeth are fixedly connected to the periphery of the first chain. The driving shaft and the driven shaft are in transmission connection with a second chain, the periphery of the second chain is fixedly connected with a bulldozing plate, the driving shaft is in transmission connection with the transmission shaft, and the output end of the engine is in transmission connection with the transmission shaft. Through the arrangement, grooves with different depths can be excavated by the device, and soil bodies excavated out of the excavated grooves can be transferred to the outer side of the frame.