51results about How to "Meet complex needs" patented technology

The invention discloses an industrial control computer intelligent power supply, a management device thereof, and a control method thereof. The industrial control computer intelligent power supply comprises a DC110V input circuit, a pre-filtering protection circuit, a step-down module, a back-filtering protection circuit 1, a DC24V output circuit, a back-filtering protection circuit 2, a charging management circuit, a DC step-down module 1, a DC step-down module 2, a battery module, and an MCU control module. The DC110V input circuit is connected to the step-down module through the pre-filtering protection circuit and then is connected to the DC24V output circuit through the back-filtering protection circuit 1. The DC24V output circuit is connected to the back-filtering protection circuit 2 and then is connected to the charging management circuit, the DC step-down module 1, and the DC step-down module 2. The charging management circuit is connected to the back-filtering protection circuit 2, the battery module, and the MCU control module. The MCU control module is also connected to the battery module, the charging management circuit, and the DC step-down module 1.

The invention relates to a polyurethane complex film adhesive and a preparation method thereof. The polyurethane complex film adhesive comprises a solidifying agent A component and a main agent B component, wherein the solidifying agent A component is an isocyanate-terminated prepolymer obtained by reacting polyisocyanate with polyalcohol a; the main agent B component is a polyhydroxylated compound prepared by reacting special polyalcohol, epoxy resin and polyalcohol b with polyisocyanate; the mole ratio of the functional groups of the A and B components is NCO:OH=(1.0-2.0):1. The process for preparing the polyurethane complex film adhesive is simple; the prepared product has the advantages of high initial viscosity, good wetting property on a base material, good hydrolysis resistant stability, wetness and heat resistance, long opening time, good compatibility, high adhesive force on metals, chemical resistance, good compound flexible package appearance and high stripping strength, can be used for series complex films with generality, high solid content, solvent-less lamination, and the like and overcomes the defects of low solid content, poor wetness, poor hydrolysis resistance, no wetness and heat resistance, short opening period, poor composite adhesive force on the metals, and the like of a common polyurethane complex film adhesive.

The invention discloses an all-round adjustable boarding bridge fixed bridge head installation structure, comprising a boarding bridge head, a bottom plate is arranged under the boarding bridge head, and a shaft 1 is connected to the upper surface of the bottom plate for limit rotation, and the shaft The surface of one is fixedly covered with gear one, the rear side of said gear one is meshed with a gear rod, the right end of said gear rod is fixedly connected with a rectangular rod, and the upper surface near the right side of said bottom plate is fixedly connected with a support frame. The present invention, through the cooperation between the above-mentioned structures, solves the problem that in the actual use process, the traditional boarding bridge needs to continuously adjust the horizontal and vertical orientations before it is connected with the aircraft door, so as to reach the ultimate goal. With good installation cooperation, passengers will be more comfortable when passing. During the adjustment period, due to the long distance from the boarding bridge, it is easy to make mistakes in the operation adjustment, and it is easy to collide with the aircraft door, causing economic losses. Problems that cause inconvenience to use.