A hole punch for construction

Abstract

The invention relates to the technical field of hole punching machinery for buildings, in particular to a hole puncher for a building. The hole puncher comprises a plug, a PLC control box, lead wires, a hollow column, a rotating shaft connector, a direct current motor, an electric expander, a connection cylinder, a hole punching drill bit connector, a hole punching drill bit and a bearing, wherein the plug is connected with the PLC control box through one lead wire; the PLC control box is connected to the direct current motor and the electric expander respectively through the other lead wires; the direct current motor is located in the hollow column; the rotating shaft connector is arranged on a right side plate of the hollow column; a rotating shaft of the direct current motor is in threaded connection with the rotating shaft connector; the electric expander is fixed on the right side of the direct current motor; the electric expander penetrates through the bearing and the connection cylinder; the electric expander is fixedly connected with the connection cylinder through the bearing; the hole punching drill bit connector is arranged at the right end part of the connection cylinder; the hole punching drill bit is in threaded connection with the hole punching drill bit connector; and an expansion screw connector is arranged at the right end of the electric expander. The hole puncher for the building is simple in structure and low in cost, and cannot cause extra damage to the building.

Description

technical field [0001] The invention relates to the technical field of building punching machines, in particular to a building puncher. Background technique [0002] With the improvement of people's living standards, people's interior decoration is also constantly improving, such as needing to install air conditioners in rooms without air conditioners. However, installing an air conditioner in a room without reserved air-conditioning pipeline holes requires drilling holes in the building. The existing punching machine has a complex structure and high cost, and the existing punching machine needs to be placed between the openings in the wall. Drill an expansion screw fixing hole outside to fix the punching machine. However, after the punching machine completes the drilling work, there are still expansion screw fixing holes outside the air-conditioning pipe hole, and the remaining expansion screw holes need to be repaired again. Additional effort and expense are required. C...

AI Technical Summary

Problems solved by technology

However, installing an air conditioner in a room without reserved air-conditioning pipeline holes requires drilling holes in the building. The existing punching machine has a complex structure and high cost, and the existing punching machine needs to be placed between the openings in the wall. Drill an expansion screw fixing hole outside to fix the punching machine. However, after the punching machine completes the drilling work, there are still expansion screw fixing holes outside the air-conditioning pipe hole, and the remaining expansion screw holes need to be repaired again. Additional effort and expense required

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