4results about How to "Guaranteed normal navigation" patented technology

The application discloses a self-anchoring structure for integral lifting of a steel box girder, comprising a bridge tower and a constructed steel box girder, wherein the bridge tower is provided with a ring-shaped self-anchoring support body, the bottom of the bridge tower is provided with a support bottom embedded steel plate, the ring-shaped self-anchoring support body is connected with the support bottom embedded steel plate and the constructed steel box girder, the top of the constructed steel box girder is provided with a self-anchoring truss, and the end of the self-anchoring truss towards a mounting surface is provided with lifting equipment. The application further discloses a self-anchoring method for integral lifting of a steel box girder, and the steps are as follows: 1, fixing the support bottom embedded steel plate at the bottom of the bridge tower; 2, installing the ring-shaped self-anchoring support body; 3, hoisting the prefabricated steel box girder in situ, and welding adjacent prefabricated steel box girders to make them into the constructed steel box girder; 4, installing the steel box girder inner support circular pipe and the self-anchoring truss on the constructed steel box girder; and 5, installing the steel box girder to be hoisted. The application can economically and rationally lift the steel box girder to a specified position, and can be widely applied in the field of building construction steel structure installation.

This invention relates to the field of marine fuel supply technology, specifically to an adjustment structure for a marine fuel supply unit. The structure includes a heat exchange box, a delivery pipe, and a suction pipe, both mounted on the heat exchange box. It also includes a mounting base, a motor, a sleeve, a stop block, a drive assembly, a stirring assembly, and a preheating assembly. The mounting base is located on the top of the heat exchange box, and the motor is mounted on the mounting base. Through the motor, drive assembly, stirring assembly, and preheating assembly, this invention continuously adjusts the flow state of the heavy oil in the heat exchange box according to changes in the viscosity of the heavy oil during preheating. After the viscosity of the heavy oil decreases, the preheating assembly rotates inside the heat exchange box, increasing the turbulence effect within the heavy oil and expanding the preheating range. This effectively improves the heat exchange efficiency between cold and hot oil within a limited preheating time, ensuring normal navigation during ship acceleration while maintaining economic efficiency.

The invention discloses a variable light spot LED lens module adopting a cam push rod mechanism, and relates to the technical field of lighting equipment, the variable light spot LED lens module comprises a shell, a lighting mechanism is arranged on the rear side in the shell, and a light changing mechanism is arranged on the front side in the shell; the light changing mechanism comprises a movable plate slidably connected to the interior of the shell, a movable block slidably connected to the interior of the movable plate, a movable seat rotatably connected to the interior of the movable block, a first lens fixedly arranged above the movable seat, a fixed plate fixedly arranged in the shell, a guide groove formed in the fixed plate, and two channels obliquely extending towards the two sides in a symmetrical structure from the rear portion of the guide groove. The moving seat is in sliding fit with the interior of the guide groove; the front side of the bottom face of the inner side of the shell is rotationally connected with a rotating disc, a plurality of limiting rods which are annularly arranged at equal intervals are fixedly arranged on the rotating disc, and rod grooves in sliding fit with the limiting rods are formed in the two side walls of the front portion of the guide groove. According to the invention, the dark space range at the edge of the lighting equipment during fan-shaped scanning can be effectively reduced, and the lighting quality is greatly improved.

This utility model relates to the field of water conservancy engineering technology, specifically to a water conservancy hub structure, including an upstream reservoir and a downstream river channel. The upstream reservoir and the downstream river channel are connected by an intermediate channel, which includes a first tributary channel and a second tributary channel. The upstream of the first tributary channel and the upstream of the second tributary channel are connected to form a diversion point. The downstream of the first tributary channel flows into the downstream river channel. A ship lift is located at the confluence between the first tributary channel and the downstream river channel. A water-retaining overflow dam is located downstream of the second tributary channel. This utility model designs the intermediate channel as two tributary channels to divert water flow, with the upstream of the two tributary channels connected to form a diversion point. Water can flow into the two tributary channels separately. When passing through the diversion point, the flow velocity and impact force are reduced by the second tributary channel and the water-retaining overflow dam, greatly reducing the impact of the water flow on the ship lift and ensuring the normal operation of the ship lift and the normal navigation of the waterway.