Rectangular fish plate structure of tower crane

Abstract

The invention relates to the field of a tower crane, in particular relates to a rectangular fish plate structure of a tower crane, which aims at solving the technical problem for providing a rectangular fish plate structure of the tower crane, which is firm in connection and convenient to machine. The rectangular fish plate structure of the tower crane comprises an upper rectangular pipe, a lower rectangular pipe, a long fish plate insertion pin and a short fish plate insertion pin, and the upper rectangular pipe is provided with a long fish plate positioning hole and a short fish plate positioning hole; the lower rectangular pipe is provided with a long fish plate and a long fish plate through hole, the other two opposite pipe walls of the lower rectangular pipe are respectively provided with a short fish plate and a short fish plate through hole; the upper rectangular pipe and the lower rectangular pipe are connected with each other through the long fish plate insertion pin and the short fish plate insertion pin. The rectangular fish plate structure is easy to install and disassemble, and the efficiency for building the tower crane is greatly improved. The rectangular fish plate structure is simple and practical in design and particularly applicable to the construction of a tower frame of the large and middle-sized tower crane.

Description

technical field [0001] The invention relates to the field of tower cranes, in particular to a rectangular fishplate structure of a tower crane. Background technique [0002] Due to the cross-sectional characteristics of the angle steel itself, the tower body connected by the main chord fish plate of the existing angle steel is not only inconvenient to install, but also requires a lot of manpower and material resources, and also needs to consume a lot of materials in the manufacture. With the rapid development today, the existing angle steel main chord fish plate structure can no longer meet the requirements of large and medium-sized tower cranes for the tower body. However, there is still no new fishplate structure that can better solve the above problems in the market. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a rectangular fishplate structure of a tower crane with stable connection and convenient manufac...

AI Technical Summary

Problems solved by technology

[0002] Due to the cross-sectional characteristics of the angle steel itself, the tower body connected by the angle steel main chord fishplate is not only inconvenient to install, but also requires a lot of manpower and material resources, and also needs to consume a lot of materials in the manufacture. With the rapid development today, the existing angle steel main chord fish plate structure can no longer meet the requirements of large and medium-sized tower cranes for the tower body

However, there is no new fishplate structure that can better solve the above problems in the market at present.

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