Novel steel pipe scaffold connecting piece

Abstract

The invention discloses a novel steel pipe scaffold connecting piece, which comprises a sleeve and a pipe joint, wherein four trapezoidal keys are arranged on the peripheral surface of the sleeve; one end of the pipe joint is provided with a trapezoidal groove which is matched with one trapezoidal key; the trapezoidal key is inserted into the trapezoidal groove; a vertical locking pin through hole is formed in the middle along the length direction of the trapezoidal groove; a locking pin is inserted into the locking pin through hole; the top surface of a narrow end of the trapezoidal key is provided with a convex top; the bottom surface of the trapezoidal groove is provided with a groove which is matched with the convex top; a trapezoidal bump is arranged on one side close to the middle part of the locking pin; and a locking groove which is matched with the wide end of the trapezoidal bump is formed in the locking pin through hole and is mutually crossed with the groove in the bottom surface of the trapezoidal groove. The novel steel pipe scaffold connecting piece has the advantages that the pipe joint and the locking pin can be combined or separated by only pushing and pulling half the locking pin during disassembly and assembly of the pipe joint so as to prevent the locking pin from being lost, the trapezoidal key is tightly attached to the trapezoidal groove and is firmly connected with the trapezoidal groove, and a rectangular groove of the locking pin through hole axially stretches to improve the integral intensity of the connecting piece and prevent adjacent locking pins from being interfered with each other during use.

Description

technical field [0001] The invention relates to a novel steel pipe scaffolding connector, which is used for building construction. Background technique [0002] The connectors of the new steel pipe scaffolding in the prior art mainly include a sleeve and a pipe joint. Four trapezoidal keys distributed uniformly along the circumference are arranged on the outer peripheral surface of the sleeve; ring bearings are respectively provided at both ends of the pipe joint. The socket and the trapezoidal groove matched with the trapezoidal key, the trapezoidal key is inserted into the trapezoidal groove. When in use, the sleeve is put on the standpipe and welded, and the annular socket platform of the pipe joint is connected with the top of the transverse pipe and the longitudinal pipe in the horizontal plane. In the middle of the trapezoidal key and the long direction of the trapezoidal groove, a lock pin through hole perpendicular to the long direction is provided, and a lock pin i...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new type of steel pipe scaffolding connector to solve the problem in the prior art that all lock pins must be pulled out from the lock pin through holes when disassembling pipe joints, which may easily cause loss of lock pins; The key and the trapezoidal groove are locked, there will always be a small gap, and the connection is not firm; the ratio of the through hole of the lock pin in the radial direction (at the side of the groove) is relatively large, which reduces the overall strength of the connecting piece; the distance between the lock pin position and the sleeve The barrel is close, and the adjacent lock pins (including the pipe ends that need to be connected) interfere with each other during use, and only part of the lock pins can be used, and some lock pins are disabled.

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