Device for quickly breaking pull rope or pull rod

Abstract

The invention discloses a device for quickly breaking a pull rope or a pull rod. The device comprises a sleeve connected with one end of the broken pull rope or pull rod and a straight rod connected with the other end; two clamping pieces are arranged in the sleeve and hinged with the sleeve by bolts; a circular lantern ring is arranged at the tail of the sleeve and connected with the sleeve, and blocking pieces extending from the tails of the clamping pieces can prevent the clamping pieces from dropping; a similar ellipse is cut in the lantern ring, so that the lantern ring drives the tails of the two clamping pieces to close during rotating; one end of the straight rod is connected with the pull rope or the pull rod, the diameter of the other end of the straight rod is slightly greater than that of the pull rope or the pull rod, and the connection part is polished into an arc; and the straight rod can be just clamped by the splayed clamping pieces in the sleeve. The device can realize a function of bearing instantaneous breakage of the pull rope or pull rod with certain load, does not produce any other additional influence on a test structure, and is simple and convenient in operation and high in safety.

Description

technical field [0001] The invention relates to a device for realizing quick disconnection of a drag cable or a pull rod, which belongs to a drag cable breaking test device in a building structure. Background technique [0002] In recent years, with the continuous improvement of theory and technology, prestressed space structures such as tensioned string structures, tensioned overall structures, and cable-strut dome structures have received more and more attention due to their dynamic lightness, various forms, and less building material usage. Many people's attention. However, the tensegrity is also difficult to construct due to its complex structural design. Safety accidents often occur due to factors such as construction accidents, component damage, and corrosion, and almost all accidents include sudden breakage of structural cables or tie rods. open. The sudden disconnection of the cables or rods will have a strong impact on the relevant nodes or ends, which will have a...

AI Technical Summary

Problems solved by technology

At present, there are few relevant literatures. The existing methods for quickly disconnecting cables or rods generally include static unloading method, blasting method, and external impact force method. Each method has its own advantages and disadvantages, but all Unable to meet the requirements of instantaneous disconnection, no external force or energy input, and simple and safe operation at the same time

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