High-frequency low-amplitude rescue saw

Abstract

The invention relates to the technical field of rescue and discloses a high-frequency low-amplitude rescue saw which comprises an executing mechanism, a power mechanism and a shell. The executing mechanism comprises two parallelly-arranged saw blades, each saw blade is slidably connected with a sliding groove in the shell through a slider on the side wall, a fixed end of each of the saw blades is rotatably connected with a labor-consuming end of a lever plate, and two end portions of a supporting shaft of each lever plate are rotatably connected with the shell; labor-saving ends of the lever plates are rotatably connected with two end portions of a seesaw through connecting plates, and two ends of a rotating shaft in the middle of the seesaw are rotatably connected with the shell; the power mechanism comprises a driving motor and an eccentric wheel coaxial with the driving motor, the driving motor is fixed with the shell, and an eccentric wheel and the end portion of the seesaw are rotatably connected with two ends of a pulling plate respectively. The saw blades are in high-frequency low-amplitude reciprocating motion when touching a human body during cutting of hard objects, and skin of the human body cannot be damaged after being stretched within a proper range, so that safety of disaster-affected people is guaranteed in the process of rescue.

Description

technical field [0001] The invention belongs to the technical field of rescue and relates to a portable cutting device, in particular to a high-frequency and low-amplitude rescue saw. Background technique [0002] At present, in some natural and non-natural disasters, emergencies such as the human body being stuck by the collapsed protection, ore or some hard steel materials often occur, most of which are caused by a certain part of the human body being stuck by a hard object, such as reinforced concrete , cement piers, steel shells, ores, etc. At present, the rescue of such disasters is based on the use of cutting tools. Although these tools have better cutting effects on hard objects, they all have the following disadvantages: when approaching the human body, the large reciprocating motion of the saw blade will cut the human body and cause secondary damage. And adopting other methods to replace the cutting tool is less efficient, which may lead to missing the best rescue...

AI Technical Summary

Problems solved by technology

Although such tools have better cutting effects on hard objects, they all have the following disadvantages: when the saw blade is close to the human body, the large reciprocating motion of the saw blade will cut the human body and cause secondary damage.

The use of other methods to replace cutting tools is less efficient, which may lead to missing the best rescue time, aggravate the injuries of the victims, and even cause more serious casualties.

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