5 results about "Fixed ramp" patented technology

The utility model discloses a smooth running transition mechanism for a stern door and a fixed ramp of a roll-on-roll-off ship, which comprises a transition mechanism body and a guide mechanism, one end of the transition mechanism body is rotatably connected with the stern door, and the other end of the transition mechanism body is lapped on the fixed ramp when the transition mechanism is used. The guide mechanism is fixed to the end, close to the stern door, of the fixed ramp, an inclined section is arranged on the lower end face of the transition mechanism body, the inclined section inclines downwards relative to the upper end face of the transition mechanism body from the end, close to one side of the fixed ramp, of the lower end face, and a sliding mechanism is arranged on the inclined section. The upper end face of the guide mechanism is an inclined face which inclines downwards relative to the horizontal plane from the end of the side, close to the stern door, of the fixed ramp, and the sliding mechanism slides on the guide mechanism. The smooth running transition mechanism for the stern door and the fixed ramp of the roll-on-roll-off ship can meet the requirements of smooth running, rolling storage and convenient maintenance at the same time.

The invention discloses a ramp device for obstacle crossing of a pipe gallery inspection robot, and belongs to the technical field of ramps.The ramp device comprises a shell and a bearing plate arranged in the shell, the top of the bearing plate is provided with an angle adjusting assembly, and the outer end of the bearing plate is provided with an auxiliary assembly; a storage assembly for displacing the bearing plate is arranged in the shell; through the design of the storage assembly that a motor drives a lead screw, a traditional fixed ramp for manual carrying and placing is replaced, the bearing plate can stably stretch out and draw back along constraint of a guide rod, a guide groove and a guide body, in cooperation with rolling assistance of a second rolling wheel, unfolding and storage can be completed without manual intervention, the human input of pipe gallery inspection operation is reduced, and the working efficiency is improved. The operation efficiency is improved.

A mobile jettison rack includes a base frame, a lift jack, and a ramp. The lift jack is coupled to the base frame and includes a wheel that is configured to contact a deck of a ship to elevate and mobilize the base frame over the deck when the lift jack is extended. The ramp includes a fixed ramp portion and an adjustable ramp portion. The fixed ramp portion is inclined towards a jettison side of the mobile jettison rack and is configured to receive and support a container that is to be emergently jettisoned towards the jettison side and over an outboard side of the ship. The adjustable ramp portion is coupled to the fixed ramp portion and is inclined towards the jettison side. The adjustable ramp portion has a length that is selectively adjustable to adjust a total length of the ramp.

This utility model discloses a barrier-free assistive device for rail transit platforms, belonging to the field of rail transit technology. Its key technical features include a housing with a lifting mechanism inside. A protective mechanism is provided on the top of the lifting mechanism. The lifting mechanism includes a lead screw, which is located inside the housing. The top and bottom of the lead screw are rotatably connected to the inner wall of the housing via bearings. An internally threaded lifting plate is threaded onto the surface of the lead screw. Transmission plates are fixedly connected to the front and rear sides of the internally threaded lifting plate. This invention solves the problems of existing barrier-free assistive devices, which mostly involve fixed ramps or manually folding ramps. Fixed ramps require significant pushing force for wheelchairs to ascend and descend and are prone to slipping, resulting in poor safety. Manually folding ramps require manual unfolding and folding, which is cumbersome and fails to meet the needs for efficient, convenient, and safe barrier-free travel.

This invention relates to the field of goose egg-laying technology and discloses a mobile egg-laying box for goose farms, comprising a device platform, a side plate fixedly connected to one side of the device platform, four legs fixedly connected to the bottom of the device platform, wheels fixedly installed at the bottom of the legs, an egg-laying box fixedly installed in the middle of the top of the device platform, a high-level entrance opened above one side of the egg-laying box, a fixed ramp fixedly installed on one side of the device platform, and a movable ramp movably connected to one side of the top of the device platform. This invention avoids stress to the geese caused by delays in releasing them by opening high-level entrances and low-level exits at different heights on the egg-laying box; by utilizing the single press of the contact block when the geese enter the egg-laying box, the position of the guide rod on the delivery conveyor belt is switched, thereby conveniently distinguishing the number of eggs laid by the geese in multiple laying cycles and achieving strict recording of the individual egg production of the geese.