Rapid mounting and dismounting structure as well as expansion tube and expansion head assembly comprising same

Abstract

The invention discloses a rapid mounting and dismounting structure as well as an expansion tube and expansion head assembly comprising the same. According to the technical scheme, the rapid mounting and dismounting structure is characterized by comprising a first connection assembly connected with a first component and a second connection assembly connected with a second component, wherein a clamping table capable of clamping the second connection assembly is arranged on the first connection assembly and formed in the position where two different holes are connected. The first component is an expansion tube while the second component is an expansion head assembly. During mounting, all that is required is to insert an inserting shaft part of the second connection assembly into outer and inner holes of the first connection assembly and rotate for a certain angle, then the second connection assembly can be clamped on the clamping table, meanwhile, under the press of a spring and the action of a positioning table, the second connection assembly cannot loose, during dismounting, all that is required for pulling the inserting shaft part out of the inner and outer holes quickly is to rotate the second connection assembly, rapid mounting and dismounting are realized, and the production efficiency is improved.

Description

【Technical field】 [0001] The invention relates to a quick disassembly structure and an expander with the disassembly structure. 【Background technique】 [0002] The tube expansion process is a process in which the tube expansion tool is squeezed into the copper tube by an external force to expand the diameter of the steel tube. The tube expansion tool is generally composed of an expansion rod and an expansion ball installed on the expansion rod with a diameter larger than the inner diameter of the steel pipe. There are generally two ways to connect the rod and the expansion ball: one is welding, but welding is not conducive to the replacement of the expansion ball, because it is necessary to replace different types of expansion balls when expanding pipes with different diameters and specifications, or the expansion during use. The ball is easily damaged and needs to be replaced. The other uses a threaded structure for connection to realize the replacement of the bulging ball...

AI Technical Summary

Problems solved by technology

[0002] The tube expansion process is a process in which the tube expansion tool is squeezed into the copper tube by an external force to expand the diameter of the steel tube, and the tube expansion tool is generally composed of an expansion rod and an expansion ball installed on the expansion rod and having a diameter larger than the inner diameter of the steel pipe. There are generally two ways to connect the rod and the expansion ball: one is welding, but welding is not conducive to the replacement of the expansion ball, because it is necessary to replace different types of expansion balls when expanding pipes with different diameters and specifications, or to expand during use. The ball is easily damaged and needs to be replaced

The other uses a threaded structure for connection to realize the replacement of the swelling ball, but the threaded connection structure is still too troublesome for the swelling ball that needs to be replaced frequently

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