A self-pressurized expansion hole-forming die for building components

Abstract

A self-pressurization expansion type hole forming die for a building component comprises a hard shell. A cavity is formed in the hard shell, a soft sleeve is installed on the lateral wall of the hard shell circumferentially, the two ends of the soft sleeve are connected with the hard shell through a first clamping hoop and a second clamping hoop respectively, an expansion chamber is formed between the inner wall of the soft sleeve and the outer wall of the hard shell, a through hole is formed in the lateral wall of the hard shell, the cavity is communicated with the expansion chamber through the through hole, a piton is installed in the cavity, one side of the piston is connected with an inner casing pipe, an outer casing pipe is arranged outside the inner casing pipe, the outer casing pipe is connected with the hard shell, a spring is installed between the piston and the hard shell, and the other side of the piston is connected with one end of a push rod. For solving the problems, technicians in the field provide a plurality of schemes for solving the problems.

Description

technical field [0001] The invention relates to a hole-forming die for building components, in particular to a self-pressurizing and expanding hole-forming die for building components. Background technique [0002] Prefabricated elements manufactured in the construction sector have many structures with holes. When making prefabricated components, metal materials are generally used as hole molds for the formation of holes. When the concrete is solidified to a certain strength, the hole mold needs to be manually rotated or twitched to separate the hole mold from the concrete, which is convenient for smooth demoulding. When the strength reaches a higher level, the hole die is pulled out. The disadvantage of this method of forming holes is that: in the process of making prefabricated parts, it is necessary to manually rotate or twitch the mold one by one, which takes up a lot of human resources, the labor intensity of the workers is high, and the production efficiency is low; t...

AI Technical Summary

Problems solved by technology

The disadvantage of this method of forming holes is that: in the process of making prefabricated parts, it is necessary to manually rotate or twitch the mold one by one, which takes up a lot of human resources, the labor intensity of the workers is high, and the production efficiency is low; the degree of solidification of the prefabricated materials needs to be accurately grasped. If the timing is not grasped, it is easy to cause damage to the solidified material, making it difficult to guarantee the quality of the hole. If the manual operation is not timely, the mold will not be able to be demoulded.

However, although these disclosed methods have certain advantages, they are complex in structure and complex in operation, which still cannot solve the above problems, and have not been applied in industrialized production so far.

Images