Adjustable-type road bridge limiting device

Abstract

The invention discloses an adjustable-type road bridge limiting device comprising a bottom plate. A supporting plate is arranged on the upper side of the bottom plate, a first connecting rod is arranged in the upper end of the supporting plate, and an electric telescopic rod is arranged on the lower side of the first connecting rod. A connecting frame is arranged on the rear side of the supportingplate, a first motor is arranged at the upper end of the connecting frame, and a rotary shaft is arranged on the lower side of the first motor. Connecting blocks are arranged at the two ends of the rotary shaft, baffles are arranged on the rear sides of the connecting blocks, and a supporting rod is arranged on the upper side of the first connecting rod. A connecting seat is arranged on the upperside of the supporting plate, a third connecting rod is arranged on the inner side of the connecting seat, and a first connecting pipe is arranged at the outer end of the middle of the third connecting rod. A connecting cover is arranged on the upper side of the first connecting pipe, a gear is arranged in the connecting cover, and a rack is arranged on the inner side of the gear. A second connecting pipe is arranged on the lower side of the rack. According to the adjustable-type road bridge limiting device, height limiting and width limiting can be effectively conducted on a road bridge, appropriate height adjusting and width adjusting can be conducted under the emergency situation, using of the adjustable-type road bridge limiting device is facilitated, and the using performance of theadjustable-type road bridge limiting device is improved.

Description

technical field [0001] The invention relates to the field of highway bridges, in particular to an adjustable limiting device for highway bridges. Background technique [0002] A bridge (bridge) refers to a building built for roads to cross natural or artificial obstacles. It is erected on rivers, lakes and seas to allow vehicles and pedestrians to pass smoothly. A bridge generally consists of a superstructure, a substructure and ancillary structures. The superstructure mainly refers to the bridge span structure and support system; the substructure includes abutments, piers and foundations; , diversion engineering, etc. According to the structural system of bridges, there are four basic systems: girder bridge, arch bridge, rigid frame bridge, and suspension cable load-bearing (suspension bridge, cable-stayed bridge). [0003] In order to better protect the bridge body, the current highway bridges often use width and height limiting equipment to limit vehicles, thereby prote...

AI Technical Summary

Problems solved by technology

[0003] In order to better protect the bridge body, the current highway bridges often use width and height limiting equipment to limit vehicles, thereby protecting the bridge. However, the current bridge width and height limiting devices are generally fixed, and there is often no need to carry out emergency measures in case of emergency In this way, only the width and height limit equipment can be disassembled, which not only wastes manpower and material resources, but also affects the use of roads

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