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33results about How to "Small overlap" patented technology

Pavement maintenance device for highway construction and use method thereof

ActiveCN113026497AIncrease profitReduce repetitive spraying actionsRoads maintainencePavement maintenanceStructural engineering
The invention discloses a pavement maintenance device for highway construction and a using method thereof. The pavement maintenance device comprises a driving stretching mechanism and a middle fixing plate arranged on the driving stretching mechanism; first driving hydraulic cylinders which are arranged at the upper ends of the two sides of the middle fixing plate, and the first driving hydraulic cylinders are rotationally connected with the middle fixing plate through first rotating pieces; a side fixing plate which is arranged at the output rod end of the first driving hydraulic cylinder, and the side fixing plate is rotationally connected with an output rod of the first driving hydraulic cylinder through a second rotating piece; and first stretching rotating rods which are arranged at the front ends between the two side fixing plates, the number of the first stretching rotating rods is multiple, and the middles of every two adjacent first stretching rotating rods are rotationally connected through a second rotating shaft. The spraying range is adjusted according to the widths of different road surfaces, so that the utilization rate of water resources is increased, repeated spraying actions on the same road surface are reduced, and the problem of energy waste is effectively avoided.
Owner:夏明辉

Closed pressure regulating oil tank capable of realizing high-precision detection of oil quantity

The invention discloses a closed pressure regulating oil tank capable of realizing high-precision detection of oil quantity. The closed pressure regulating oil tank comprises an oil tank main body unit and an air pressure regulating unit, wherein the oil tank main body unit comprises an oil tank front end cover, an oil tank cylinder wall, a sealing piston body, an oil tank rear end cover and a travel displacement sensor; the air pressure regulating unit comprises a pressure sensor, an air pump, an air channel one-way valve and an air channel electromagnetic valve; the oil tank front end cover,the oil tank cylinder wall and the oil tank rear end cover form a closed inner cavity of the oil tank, and tensioning rods are adopted to tension and fix the oil tank main body unit; an oil inlet anddrain hole is formed in the oil tank front end cover; an oil tank air inlet and discharge hole is formed in the oil tank rear end cover; the oil inlet and drain hole can be connected to a hydraulic system, and the air inlet and discharge hole is connected to the air pressure regulating unit; the sealing piston body is arranged in the closed inner cavity and divides the closed inner cavity into anoil liquid side and a gas side; the pressure sensor is installed in a threaded hole of the oil tank rear end cover; and the air pump and the air channel electromagnetic valve are fixed on the outer side of the oil tank rear end cover through screws. The closed pressure regulating oil tank is compact in structure, high in integration level and light.
Owner:TIANJIN UNIV

Agricultural plant protection unmanned aerial vehicle capable of realizing efficient operation

The invention belongs to the field of unmanned aerial vehicles, and in particular relates to an agricultural plant protection unmanned aerial vehicle capable of realizing efficient operation. The agricultural plant protection unmanned aerial vehicle comprises a vehicle body and a pesticide storage box, wherein spray nozzles are mounted at the bottom of the pesticide storage box, a connecting blockis fixedly mounted at the upper end of the pesticide storage box, a clamping hole matched with the connecting block is formed in the lower surface of the vehicle body, a clamping mechanism for fixingthe connecting block is arranged in the vehicle body, a horizontally arranged sealing plate is fixedly connected to the inner side wall of the pesticide storage box, two first through holes are formed in the sealing plate, the upper surface of the sealing plate is rotatably connected with a rotating plate, and two second through holes matched with the first through holes are formed in the rotating plate, the lower end of the pesticide storage box is fixedly connected with a wing plate through a spring, and the upper surface of the wing plate is fixedly connected with a threaded rod. The agricultural plant protection unmanned aerial vehicle does not need to add pesticides to the pesticide storage box in the working process, realizes continuous spraying operation, effectively improves the working efficiency, and can adjust the pesticide outlet quantity of the spray nozzles according to the flight speed to realize uniform spraying.
Owner:台山市谭江生态农业有限公司

A closed pressure regulating oil tank with high precision detection of oil quantity

The invention discloses a closed-type pressure-regulating oil tank for high-precision detection of oil quantity, which includes a main body unit of the fuel tank and an air pressure adjustment unit; the main body unit of the fuel tank includes a front end cover of the fuel tank, a barrel wall of the fuel tank, a sealing piston body, a rear end cover of the fuel tank and a stroke Displacement sensor; the air pressure adjustment unit includes: a pressure sensor, an air pump, an air circuit check valve and an air circuit solenoid valve; the front end cover of the fuel tank, the barrel wall of the fuel tank and the rear end cover of the fuel tank form the closed inner cavity of the fuel tank, and a tension rod is used to The main unit of the fuel tank is tightened and fixed; the front cover of the fuel tank is provided with oil inlet and outlet holes; the rear end cover of the fuel tank is provided with inlet and outlet holes of the fuel tank; the oil inlet and outlet holes can be connected to the hydraulic system, and the inlet and outlet holes are connected to the air pressure adjustment unit ;The sealing piston body is set in the closed inner cavity and the closed inner cavity is divided into the oil side and the gas side; the pressure sensor is installed in the threaded hole of the rear end cover of the fuel tank; the air pump and the gas circuit solenoid valve are fixed on the rear end of the fuel tank by screws Cover outside. The invention has the advantages of compact structure, high integration degree and light weight.
Owner:TIANJIN UNIV

A high-efficiency agricultural plant protection drone

The invention belongs to the field of unmanned aerial vehicles, and in particular relates to an agricultural plant protection unmanned aerial vehicle for efficient operation, which includes a body and a medicine storage box. A spray head is installed at the bottom of the medicine storage box, and a connection block, the lower surface of the body is provided with a clamping hole matching the connecting block, the body is provided with a clamping mechanism for fixing the connecting block, and the inner wall of the medicine storage box is fixedly connected with a horizontal setting There are two first through holes in the sealing plate, the upper surface of the sealing plate is rotatably connected with a rotating plate, and two second through holes matching the first through holes are opened in the rotating plate. The lower end of the medicine storage box is fixedly connected with a wing plate through a spring, and the upper surface of the wing plate is fixedly connected with a threaded rod. The invention does not need to add pesticide to the medicine storage box during the working process, realizes the continuous spraying operation, effectively improves the working efficiency, and can adjust the spraying amount of the spray head according to the flying speed to realize uniform spraying.
Owner:台山市谭江生态农业有限公司
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