Abstract: Disclosed is a two-layer three-rail planar robot with a parallelogram, including a fixed platform, a moving platform, and three branched chains. Three planar curved rails I are provided on the fixed platform. Three planar curved rails II are fixedly connected to the moving platform. Each planar curved rail I is connected to a planar curved rail II corresponding to the planar curved rail I by one of the branched chains. Each of the branched chains includes a slider I, two connecting rods provided in parallel, a slider II. The slider I is slidably connected to the planar curved rail I. The slider I is rotatably connected to one end of each connecting rod by a revolute pair I, the other end of the connecting rod is rotatably connected to the slider II by a revolute pair II. The slider II is slidably connected to the planar curved rail II.

Abstract: A cotton topping unmanned aerial vehicle having cutter discs and front grain lifting baffle plates is provided, the unmanned aerial vehicle includes an unmanned aerial vehicle body, a carrying component, a grain lifting component, and a cutting component. The carrying component includes a suspension, an electric push rod mounting base, an electric push rod, a motor mounting base, and motors. An upper end of the electric push rod is bolted to the electric push rod mounting base. The motor mounting base is welded to a lower end of the electric push rod. The grain lifting component is grain lifting baffle plates which include a left baffle plate and a right baffle plate, and both the left baffle plate and the right baffle plate are welded to guard plates.

Abstract: A single-layer three-section rail-type planar robot containing a double parallelogram, is composed of a stationary platform, a motion platform and three branched chains with the same structure connecting the stationary platform and the motion platform, the stationary platform is provided with three planar curved rails, each planar curved rail is connected to the motion platform through a branched chain, and each branched chain includes a slider, two link bars I arranged in parallel, two link bars II arranged in parallel, and link bar III, select one revolute joint I in each branched chain to form three revolute joints I as the main driving joint or three sliders as the driving parts.

Abstract: A large-load unmanned aerial vehicle (UAV) for plant protection with adjustable spraying swath and pesticide application amount is provided, relating to the technical field of pesticide application of unmanned aerial vehicles. The large-load unmanned aerial vehicle for plant protection comprises a large-load unmanned aerial vehicle, a pesticide box, a variable pesticide application system, and adjustable spraying swath mechanisms, wherein the pesticide box is fixed to landing gears of the unmanned aerial vehicle and is positioned below a control platform of the unmanned aerial vehicle; the adjustable spraying swath mechanisms are arranged on the landing gears, the variable pesticide application system is connected with the pesticide box and the adjustable spraying swath mechanisms, the variable pesticide application system and the adjustable spraying swath mechanisms are electrically connected with the control platform, and the control platform is in communication connection with a remote control handle.

Abstract: Disclosed is a two-layer three-rail planar robot with a parallelogram, including a fixed platform, a moving platform, and three branched chains. Three planar curved rails I are provided on the fixed platform. Three planar curved rails II are fixedly connected to the moving platform. Each planar curved rail I is connected to a planar curved rail II corresponding to the planar curved rail I by one of the branched chains. Each of the branched chains includes a slider I, two connecting rods provided in parallel, a slider II. The slider I is slidably connected to the planar curved rail I. The slider I is rotatably connected to one end of each connecting rod by a revolute pair I, the other end of the connecting rod is rotatably connected to the slider II by a revolute pair II. The slider II is slidably connected to the planar curved rail II.

Abstract: A single-layer three-section rail-type planar robot containing a double parallelogram, is composed of a stationary platform, a motion platform and three branched chains with the same structure connecting the stationary platform and the motion platform, the stationary platform is provided with three planar curved rails, each planar curved rail is connected to the motion platform through a branched chain, and each branched chain includes a slider, two link bars I arranged in parallel, two link bars II arranged in parallel, and link bar III, select one revolute joint I in each branched chain to form three revolute joints I as the main driving joint or three sliders as the driving parts.

Abstract: A large-load unmanned aerial vehicle (UAV) for plant protection with adjustable spraying swath and pesticide application amount is provided, relating to the technical field of pesticide application of unmanned aerial vehicles. The large-load unmanned aerial vehicle for plant protection comprises a large-load unmanned aerial vehicle, a pesticide box, a variable pesticide application system, and adjustable spraying swath mechanisms, wherein the pesticide box is fixed to landing gears of the unmanned aerial vehicle and is positioned below a control platform of the unmanned aerial vehicle; the adjustable spraying swath mechanisms are arranged on the landing gears, the variable pesticide application system is connected with the pesticide box and the adjustable spraying swath mechanisms, the variable pesticide application system and the adjustable spraying swath mechanisms are electrically connected with the control platform, and the control platform is in communication connection with a remote control handle.

Abstract: The present invention discloses an opposite belt-type precise seeding device. The opposite belt-type precise seeding device comprises a seed metering tube consisting of a U-shaped shell and a cover plate, two conveying devices provided inside the seed metering tube in parallel, and a conveying plate provided at the lower end of the seed metering tube. The opposite belt-type precise seeding device belongs to the field of agricultural machinery. In a seeder, a tubular seed conveying tube is usually used for guiding movement of seeds, but the movement of the seeds in the seed conveying tube has certain randomness, so that the seed distance consistency of the seeds in a seed bed is reduced. Through control of the seeds by the conveying devices, the stable movement of the seeds is achieved and the seed distance consistency of the seeds in the seed bed is guaranteed.

Abstract: A cotton topping unmanned aerial vehicle having cutter discs and front grain lifting baffle plates is provided, the unmanned aerial vehicle includes an unmanned aerial vehicle body, a carrying component, a grain lifting component, and a cutting component. The carrying component includes a suspension, an electric push rod mounting base, an electric push rod, a motor mounting base, and motors. An upper end of the electric push rod is bolted to the electric push rod mounting base. The motor mounting base is welded to a lower end of the electric push rod. The grain lifting component is grain lifting baffle plates which include a left baffle plate and a right baffle plate, and both the left baffle plate and the right baffle plate are welded to guard plates.

Abstract: A variable-rate spraying nozzle device includes a chemical supply assembly and an atomization spray assembly for atomizing and spraying a chemical solution. The atomization spray assembly includes spray housings arranged sequentially from top to bottom, chemical solution channels are provided between two adjacent spray housings, and the spray housings are assembled together to form an inverted tapered exterior structure; spray holes are densely and circumferentially provided in each spray housing; spray housings are connected with an atomization power mechanism including atomization rotation shafts and a power mechanism including motors and transmission mechanisms for connecting main spindles of the motors with the atomization rotation shafts correspondingly; the atomization rotation shafts in the atomization power mechanism corresponding to the spray housings are coaxially disposed; the motors in the atomization power mechanism are connected with a speed control module.

Abstract: A falling-resistant and anti-drifting unmanned aerial vehicle has a main body and at least one rotor wing thereon. Both sides of the main body have a wing with an airbag filled with gas lighter than air. Bulges protruding downwards are arranged at the bottoms of the airbag. The two airbags are at the same height symmetrically arranged based on the main body. The airbag can function as an undercarriage when the aircraft lands down, and as a buffer when crash landing and then reduce damage to the main body. If the aircraft falls in water, the aircraft can float on the water to avoid damage caused by sinking. As bulges protruding downwards are arranged at the bottoms of the airbags, in spraying operation, side wing can be relatively well baffled by the bulges in case of side wing blowing in the flying process, resulting in less droplets draft.

Abstract: The present invention discloses an opposite belt-type precise seeding device. The opposite belt-type precise seeding device comprises a seed metering tube consisting of a U-shaped shell and a cover plate, two conveying devices provided inside the seed metering tube in parallel, and a conveying plate provided at the lower end of the seed metering tube. The opposite belt-type precise seeding device belongs to the field of agricultural machinery. In a seeder, a tubular seed conveying tube is usually used for guiding movement of seeds, but the movement of the seeds in the seed conveying tube has certain randomness, so that the seed distance consistency of the seeds in a seed bed is reduced. Through control of the seeds by the conveying devices, the stable movement of the seeds is achieved and the seed distance consistency of the seeds in the seed bed is guaranteed.

Abstract: A falling-resistant and anti-drifting unmanned aerial vehicle has a main body and at least one rotor wing thereon. Both sides of the main body have a wing with an airbag filled with gas lighter than air. Bulges protruding downwards are arranged at the bottoms of the airbag. The two airbags are at the same height symmetrically arranged based on the main body. The airbag can function as an undercarriage when the aircraft lands down, and as a buffer when crash landing and then reduce damage to the main body. If the aircraft falls in water, the aircraft can float on the water to avoid damage caused by sinking. As bulges protruding downwards are arranged at the bottoms of the airbags, in spraying operation, side wing can be relatively well baffled by the bulges in case of side wing blowing in the flying process, resulting in less droplets draft.