Support frame

Abstract

The invention relates to a novel support for supporting the inner wall of the barrel, comprising a frame, a handwheel, a guide screw, connecting bases, connecting rods, an arc supporting board and a moveable supporting board, wherein the guide screw is connected horizontally to the frame, with the handwheel at the end, two opposite threads are arranged from the middle to the end on the guide screw and connected with two connecting bases axially uniform hinged with a plurality of connecting rods, and the top ends of two connecting rods corresponding to the connecting bases are connected with an arc supporting board, a plurality of arc supporting boards are moveably connected by the moveable supporting board to form a ring. The invention using radially uniform supporting rods realizes the support and reset and each top end of the connecting rod moveably connected with arc supporting board can realize the circumferential integrality in the supporting state, to achieve reliable sealing when the sealing ring is sleeved on the frame. The invention is easy to operate and can greatly reduce the intensity of labor and realize the quick installment in narrow space.

Description

technical field [0001] The invention relates to a support mechanism, in particular to a support frame for supporting the inner wall of a cylinder. Background technique [0002] For the support of the inner wall of the cylinder, two or more arc-shaped support plates are mostly supported by support rods. The disadvantage is that it cannot achieve full contact with the cylinder wall, and the loading and unloading is more troublesome and labor-intensive. At present, the underground pipelines in municipal engineering use prefabricated pipes, and the joints at the pipe joints are required to be free of leakage. In actual engineering, each pipeline has as few as several hundred, as many as thousands or even tens of thousands of joints that need to be dealt with. A slight carelessness in construction may cause leakage. In the past, the traditional detection method was segmental irrigation and pressurization or an arc-shaped support plate to support the sealing ring to detect whethe...

AI Technical Summary

Problems solved by technology

In the past, the traditional detection method was segmental irrigation and pressurization or an arc-shaped support plate to support the sealing ring to detect whether the seam is leaking. The segmental irrigation and pressurization was abandoned because it required a large amount of water and it was not easy to accurately locate the leak point. It is widely used to check the joints one by one by supporting the sealing ring with the support plate. When the operator installs the sealing device in the pipeline, he needs to assemble and connect several parts. The workload is heavy, and the reliability of manual operation is also poor. Not well bonded to the tube wall

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