Simple wrench for fastening lower bolt of T-shaped beam side template

Abstract

The invention relates to a simple wrench for fastening a lower bolt of a T-shaped beam side template. The simple wrench comprises a torsion bar, a cross-shaped bar, a dowel bar, a bearing, a triangular support, a force transmitting steel plate, dispersed dowel bars, a nut external member and hexagon thin nuts. Four preformed holes are evenly formed in the nut external member along the axis of a circular ring, the four dispersed dowel bars penetrate the preformed holes, and the bottom of the nut external member is fixed through the hexagon thin nuts. When the size of the lower bolt of the T-shaped beam side template is changed, the lower bolt only needs to be replaced with a proper nut external member. The torsion bar is of a circular steel pipe structure. The torsion bar can be inserted in the cross-shaped bar and rotates around the axis of the dowel bar, and a force arm can be increased. According to the simple wrench, nut external members can be manufactured in advance according to different sizes of lower bolts of the T-shaped beam side template, the simple wrench is suitable for fastening work of the different sizes of the lower bolts of the T-shaped beam side template, the template installing time can be saved, construction is easy and convenient, and operation is easy. In addition, the components are machined through waste steel pipes, steel bars and steel plates on the construction site, material taking is convenient, and the simple wrench is economical and environment-friendly.

Description

technical field [0001] The invention relates to a simple wrench for fastening bolts at the lower part of a T-beam side formwork, which belongs to the field of bridge engineering construction. Background technique [0002] With the rapid development of my country's economy and the implementation of national road network planning and construction, my country has ushered in another peak period of expressway construction. With the continuous acceleration of urbanization, the number of bridges connecting cities is increasing. In expressway construction, industrial prefabrication of bridge girder slabs is an important measure to speed up bridge construction progress and save investment. In the prefabrication of bridge girder slabs, prefabricated T-beams are widely used. However, during the installation process of prefabricated T-beam formwork, the anchoring construction of the bottom fixing steel bolts is particularly difficult. Due to the influence of the large length of the scr...

AI Technical Summary

Problems solved by technology

In the prefabrication of bridge girder slabs, prefabricated T-beams are widely used. However, during the installation process of prefabricated T-beam formwork, the anchoring construction of the bottom fixing steel bolts is particularly difficult. Due to the influence of the large length of the screw, the construction of the electric socket wrench is very difficult. , often cannot tighten the nut

Failure to fasten the prefabricated formwork will have adverse effects on the prefabrication of the T-beam, such as grout leakage, and will further damage the strength of the T-beam. In severe cases, the T-beam will be scrapped, which will not only affect the progress of the project, but also increase the cost of the project.

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