Inserting key slot type steel pipe support frame connecting device

Abstract

The invention provides an inserting key slot type steel pipe support frame connecting device, which comprises an inserting base and a conical raised head inserted on the base, wherein the center of the inserting base is provided with a round hole; the conical raised head is in a shape that the inner side is narrower, the outer side is wider, the upper side is narrower and the lower side is wider; the inserting key slot type steel pipe support frame connecting device also comprises an inserting base element; the inserting base element comprises an inserting element, a baffle sheet, a spring and a lock pin; the front end of the inserting element comprises a conical groove matched with the conical raised head; the back end of the inserting element is connected with the lock pin; the baffle sheet is in an L shape; the vertical surface of the upper part L shape is provided with a positioning hole; the free height of the spring adapts to the length of the lock pin; the inner diameter of the spring is matched with the outer diameter of the lock pin and the hole diameter of the positioning hole; the lock pin passes through the positioning hole; and the spring is arranged at the outer part of the lock pin in a penetrating way and is fixed between the pin head and the positioning hole through the pin head of the lock pin. The inserting key slot type steel pipe support frame connecting device has the advantages that the connecting mode is safe and stable; the carrying capability is high; the multi-angle and different-height connection of a vertical rod and an inclined rod can be realized; the mounting and the dismounting are simple and convenient; the work efficiency of construction personnel can be effectively improved; and the material utilization rate is improved.

Description

technical field [0001] The invention relates to the field of steel pipe scaffolding, in particular to a socket type keyway type steel pipe support connecting device. Background technique [0002] At present, there are many steel pipe supports used on construction sites. There are mainly two types of connecting devices for vertical rods and inclined rods: the first one, referring to the patent document with patent number 201320146071.3, provides a quick loading and unloading scaffolding connecting device, including The oblique support in the middle, the front and rear of the oblique support are mutually perpendicular transverse support and longitudinal support, and the oblique support, transverse support and longitudinal support are integrated; the oblique support The seat is octagonal; the middle part of the oblique support is a support hole; the support wall in the vertical direction of the support hole is provided with a pin hole. The advantage of this connection device i...

AI Technical Summary

Problems solved by technology

But there are two disadvantages: one is that the quality of the connection is significantly affected by the quality of the connection device itself and the operation of the worker; the other is that the bearing capacity is poor

But there are also two disadvantages: one is the thread structure, which is firmly connected, but it takes time and effort to install and disassemble, especially after the scaffold has been used for a long time, due to rain, it will cause corrosion, the thread and the nut are often rusted, and it is very difficult to disassemble; The rods at the nodes are connected eccentrically, relying on the anti-sliding force to transmit loads and internal forces, so the bearing capacity is poor

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