An easy-to-install steel frame bridge

Abstract

The invention discloses a steel-framed bridge convenient to erect. The steel-framed bridge comprises a base, a winding device, a rotatable gantry and a foldable first bridge body; the first bridge body is provided with a first driving device used for controlling the first bridge body, the first bridge body is located on the gantry after being folded and can move to a vertical state along with the gantry, the lower end of the first bridge body is connected with the gantry in a pivoted mode, the winding device is arranged on the base and comprises a cable rope, and the cable rope winds around the gantry to be connected with the first bridge body. According to the steel-framed bridge adopting the structure, the gantry firstly rotates to drive the first bridge body to rotate to the vertical state, then the first driving device drives the first bridge body to be gradually unfolded, the winding device releases the cable rope at a set speed while the first bridge body is unfolded to control the descending speed of the first bridge body, and then the first bridge body is rapidly erected. The steel-framed bridge is simple in structure, very convenient to transport and erect and significant in effect.

Description

technical field [0001] The invention relates to a convenient steel bridge. Background technique [0002] In some emergency situations, it is necessary to quickly build bridges on rivers or ravines. At this time, in order to ensure the rapid construction of bridges, steel bridges are generally used to solve this problem. However, there are still deficiencies in the erection of existing steel bridge structures. It is not very convenient to erect, so the present invention provides a steel bridge that is convenient to erect. Contents of the invention [0003] In order to solve the above problems, the present invention provides a steel frame bridge which is convenient for erection. [0004] The technical solution adopted by the present invention to solve its technical problems is: [0005] A convenient steel frame bridge, comprising a base, hoisting device, a rotatable portal frame and a foldable first bridge body, the first bridge body is provided with a first driving device...

AI Technical Summary

Problems solved by technology

[0002] In some emergency situations, it is necessary to quickly build bridges on rivers or ravines. At this time, in order to ensure the rapid construction of bridges, steel bridges are generally used to solve this problem. However, there are still deficiencies in the erection of existing steel bridge structures. It is not very convenient to erect, so the present invention provides a convenient steel bridge

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