Protective fence for bridge plate for roll-on roll-off ship getting on and getting off vehicle

Abstract

The invention discloses a protective fence for a bridge plate for a roll-on roll-off ship getting on and getting off a vehicle. The bridge plate comprises a bridge plate body and a motor, he motor isfixedly mounted on the front side of the interior of the bridge plate body; opposite threaded rods are transversely mounted on the front side of the interior of the bridge plate body through bearings.A transmission mechanism is arranged between the motor and the opposite threaded rods, telescopic mechanisms are symmetrically arranged at the left end and the right end of the opposite threaded rods, main guardrails are symmetrically hinged to the left end and the right end of the bridge plate body, storage bins are formed in the front ends of the main guardrails, and auxiliary guardrails are inserted into openings of the storage bins. The main guardrails, the auxiliary guardrails and the telescopic mechanism are arranged, when the telescopic mechanism works, the auxiliary guardrails and themain guardrails can be oppositely opened at the opening in the front side of the bridge plate body so that the size of the inlet of the bridge plate body is increased, the auxiliary guardrails and the main guardrails can be shielded on the bank side of the lapping opening when opened so as to protect the bank side of the lapping opening, and accidents are avoided.

Description

technical field [0001] The invention relates to the technical field of bridge slabs, in particular to a protective fence for a bridge slab when a ro-ro ship gets on and off vehicles. Background technique [0002] The upper deck of the ro-ro ship is flat and open, and there are multiple decks under the upper deck. The decks are connected by ramps or lifting platforms to facilitate the passage of vehicles. On both sides, the opening is generally set at the tail, and there is a large hinged bridge deck, which is generally made of However, the structure of the current bridge deck is simple. Although there are protective fences on both sides of the bridge deck, after the bridge deck is erected, the fence restricts the entrance size of the bridge deck. In order to provide a certain space for the bridge decks of different widths, there is no fence at the bridge deck, which has certain safety hazards. Therefore, we propose a protective fence for the bridge deck when the ro-ro ship...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a protective fence for the bridge deck when getting on and off the vehicle on a ro-ro ship, so as to solve the problem that the structure of the current protective fence for the bridge deck proposed in the above-mentioned background technology is simple. The size of the entrance is limited. In addition, in order to provide a certain space for the bridge decks of different widths, there is no fence at the overlap, which has certain safety hazards.

Images