Abstract: A field agricultural machinery test platform, comprising a field soil groove, traveling guide rails, traveling trolleys, a hitch trolley, a hitch device mechanism, and a test system. The two guide rails are provided on both sides of the field soil groove in parallel, and the traveling trolleys are located on the guide rails; a cross beam is provided between the two guide rails, and the two ends of the cross beam are respectively connected to the traveling trolleys; the hitch trolley is provided on the cross beam, and a hitch device is provided on the hitch trolley; the test system is provided on the hitch trolley and the hitch device; a test machine is connected to the hitch device; the test system comprises an image assembly, a force test assembly, and a control assembly which are mounted on the hitch trolley.

Abstract: A field agricultural machinery test platform, comprising a field soil groove, traveling guide rails, traveling trolleys, a hitch trolley, a hitch device mechanism, and a test system. The two guide rails are provided on both sides of the field soil groove in parallel, and the traveling trolleys are located on the guide rails; a cross beam is provided between the two guide rails, and the two ends of the cross beam are respectively connected to the traveling trolleys; the hitch trolley is provided on the cross beam, and a hitch device is provided on the hitch trolley; the test system is provided on the hitch trolley and the hitch device; a test machine is connected to the hitch device; the test system comprises an image assembly, a force test assembly, and a control assembly which are mounted on the hitch trolley.

Abstract: Provided herein are novel and improved weight coating systems suitable for use with pipes, particularly pipes that are submerged in liquid, such as water, in environments including oceans, seas, marshes, lakes and rivers. The novel coating systems provided herein comprise an aggregate and a polyurethane binder, wherein the polyurethane binder is a two -component composition comprising an isocyanate component and an iso-cyanate-reactive component. The coating systems provided have increased durability, as well as flexibility allowing for efficiencies related to transportation, storage, use and resistance to corrosive effects. Furthermore, the coating systems are cost effective and have minimal or zero impact on the environments in which they are utilized.

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: An apparatus for installing LED light bar is provided. The apparatus includes a platform at which a component with a LED light bar to be installed is placed; a rotatable arm and a first driving device disposed on a side of the platform. The rotatable arm is provided with a locating member, and one end of the arm is fixed relative to the platform; the first driving device drives the arm to rotate about the fixed end from a first position to a second position. When the arm is located at the first position, the LED light bar to be installed may be placed at the arm, and the locating member may fix the LED light bar on a predetermined position of the arm; when the arm rotates to the second position, the LED light bar adheres to the surface of the component for installing the LED light bar thereon.

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: An overturning and shifting mechanism, comprising: a carrier platform (10) on which a first item-sensing device (12) is disposed; a transporting device (11) on which a second item-sensing device (13) is disposed; an overturning device (14) which is positioned between the carrier platform (10) and the transporting device (11) and which comprises a driving device (141) and a rotating arm (142), the rotating arm (142) being provided with a suction structure (15) thereon; and a control device which is connected with the first item-sensing device (12), the second item-sensing device (13), the driving device (141) and the suction structure (15), wherein according to sensing signals of the first item-sensing device (12) and the second item-sensing device (13), the control device controls the driving device to drive the rotating arm (142) to rotate reciprocatingly between the carrier platform (10) and the transporting device (11), while at the same time the control device controls sucking or releasing operation of th

Abstract: A cutting apparatus for a tape, on a tape conveying path, sequentially including: a feeding assembly, configured to release the tape at an upstream of the tape conveying path; an roller assembly, including a first roller and a second roller opposite to each other and configured to clamp at least part of the tape therebetween and drive the tape to move on the tape conveying path by rotation of at least one of the first roller and the second roller; and a cutter assembly, configured to cut the tape at a downstream of the tape conveying path, wherein, the cutting apparatus further includes a control assembly, configured to control the cutter assembly to cut the tape according to rotation of at least one of the first roller and the second roller. The cutting apparatus can improve cutting efficiency and accuracy of the tape.

Abstract: An overturning and shifting mechanism, comprising: a carrier platform (10) on which a first item-sensing device (12) is disposed; a transporting device (11) on which a second item-sensing device (13) is disposed; an overturning device (14) which is positioned between the carrier platform (10) and the transporting device (11) and which comprises a driving device (141) and a rotating arm (142), the rotating arm (142) being provided with a suction structure (15) thereon; and a control device which is connected with the first item-sensing device (12), the second item-sensing device (13), the driving device (141) and the suction structure (15), wherein according to sensing signals of the first item-sensing device (12) and the second item-sensing device (13), the control device controls the driving device to drive the rotating arm (142) to rotate reciprocatingly between the carrier platform (10) and the transporting device (11), while at the same time the control device controls sucking or releasing operation of th

Abstract: A cutting apparatus for a tape, on a tape conveying path, sequentially including: a feeding assembly, configured to release the tape at an upstream of the tape conveying path; an roller assembly, including a first roller and a second roller opposite to each other and configured to clamp at least part of the tape therebetween and drive the tape to move on the tape conveying path by rotation of at least one of the first roller and the second roller; and a cutter assembly, configured to cut the tape at a downstream of the tape conveying path, wherein, the cutting apparatus further includes a control assembly, configured to control the cutter assembly to cut the tape according to rotation of at least one of the first roller and the second roller. The cutting apparatus can improve cutting efficiency and accuracy of the tape.

Abstract: An apparatus for installing LED light bar is provided. The apparatus includes a platform at which a component with a LED light bar to be installed is placed; a rotatable arm and a first driving device disposed on a side of the platform. The rotatable arm is provided with a locating member, and one end of the arm is fixed relative to the platform; the first driving device drives the arm to rotate about the fixed end from a first position to a second position. When the arm is located at the first position, the LED light bar to be installed may be placed at the arm, and the locating member may fix the LED light bar on a predetermined position of the arm; when the arm rotates to the second position, the LED light bar adheres to the surface of the component for installing the LED light bar thereon.

Abstract: A polyurethane foam article comprises a first lift, a second lift, and a pass-line therebetween. The polyurethane foam article comprises the reaction product of an isocyanate-reactive resin composition, an isocyanate, and an indicator dye in the presence of a blowing agent. The indicator dye imparts a color in the first and second lifts and at the pass-line at a first temperature below a decomposition temperature of the indicator dye. The indicator dye chemically decomposes to impart a change in color in the first and second lifts and at the pass-line at a second temperature which is at or above the decomposition temperature of the indicator dye.

Abstract: A polyurethane foam article comprises a first lift, a second lift, and a pass-line therebetween. The polyurethane foam article comprises the reaction product of an isocyanate-reactive resin composition, an isocyanate, and an indicator dye in the presence of a blowing agent. The indicator dye imparts a color in the first and second lifts and at the pass-line at a first temperature below a decomposition temperature of the indicator dye. The indicator dye chemically decomposes to impart a change in color in the first and second lifts and at the pass-line at a second temperature which is at or above the decomposition temperature of the indicator dye.