Fixing device for steel pipe pipe expansion pull rod sleeve

Abstract

The invention relates to a pipeline expansion pull rod sleeve fixing device for a steel pipe. The pipeline expansion pull rod sleeve fixing device comprises a pull rod, wherein an expanding head is arranged on the pull rod, a flange sleeve is sleeved on one end of the pull rod, and a lug boss is arranged on the outer side of the flange sleeve; the pipeline expansion pull rod sleeve fixing device also comprises a wall body, wherein a groove cooperatively connected with the lug boss is arranged on one side of the wall body, the top and the bottom of the flange sleeve which is connected with the wall body are respectively provided with a connecting plate, and the connecting plates are fixed through set screws. The pipeline expansion pull rod sleeve fixing device is reasonable in structure and convenient to assemble and disassemble; the efficiency of a tool between the flange sleeve of the pull rod and the wall body is greatly improved, and the time of a track change procedure of an expanded product is shortened.

Description

technical field [0001] The invention relates to the technical field of diameter-expanding equipment, in particular to a steel pipe pipe diameter-expanding tie rod sleeve fixing device. Background technique [0002] At present, there are very few manufacturers producing diameter-expanding tie rods in the market, and there are even fewer manufacturers producing diameter-expanding tie rods with qualified properties such as high hardness, tensile strength and toughness. The domestic market mainly relies on imports, but imports are expensive and have a long cycle, which affects the construction period and the interests of partners. [0003] In the prior art, such as figure 1 and figure 2 As shown, it includes a pull rod 3, the sleeve 2 is covered on the pull rod 3, and the end of the sleeve 2 is locked with the wall 1 through a plurality of screws 4. The connection method is simple and the cost is low, but its installation is troublesome. Screw positioning is used, the positi...

AI Technical Summary

Problems solved by technology

The domestic market mainly relies on imports, but imports are expensive and have a long cycle, which affects the construction period and the interests of partners

[0003] In the existing technology, such as figure 1 and figure 2 As shown, it includes a pull rod 3, the sleeve 2 is covered on the pull rod 3, and the end of the sleeve 2 is locked with the wall 1 through a plurality of screws 4. The connection method is simple and the cost is low, but its installation is troublesome. Screw positioning is used, the positioning is inaccurate, it takes a long time, prolongs the process of changing the channel of the expanded diameter product, and the work efficiency is low

Images