A concrete trowel with runaway centrifugal shut-off

Abstract

The invention discloses a concrete trowel machine with uncontrolled centrifugal closing, and the structure thereof comprises an armrest, a throttle controller, a connecting rod, a centrifugal flameoutswitch, a power machine, a frame, a smear, a trowelling plate and a speed reducer. The centrifugal flameout switch is composed of a flameout shell, a flameout mechanism, a centrifugal frame, a centrifugal mechanism, a limiting mechanism, a breaking mechanism, and a resetting mechanism. An uncontrolled concrete trowel machine is transferred from the lower to the upper due to its own kinetic energyand generates centrifugal force, a slider on the centrifugal mechanism pushes an Z-shaped limit rod to restrict the breaking mechanism, a third spring on the breaking mechanism can push a fixing ringto move, and the fixing ring drives a curved pushing plate on a telescopic rod to disconnect the flameout mechanism, thereby avoiding the concrete trowel machine from being crashed or hurting people,and further avoiding a series of serious consequences.

Description

technical field [0001] The invention relates to the field of concrete troweling machines, in particular to a concrete troweling machine with an out-of-control centrifugal closing function. Background technique [0002] Generally, after the concrete is poured on the construction site, in order to avoid cracking after the concrete solidifies, some countermeasures will be taken when the concrete is about to solidify, such as manual troweling or using a concrete trowel. For some large-area concrete troweling, it will make the Workers operate concrete trowels for troweling. The current technical considerations are not comprehensive and have the following disadvantages: when the concrete trowel is working, it needs to rotate and rub on the concrete surface when the trowel or the trowel is working, and for some solidification is faster The concrete will increase the frictional resistance, which increases the difficulty for the workers to operate the concrete trowel, and causes the ...

AI Technical Summary

Problems solved by technology

[0002] Generally, after the concrete is poured on the construction site, in order to avoid cracking after the concrete solidifies, some countermeasures will be taken when the concrete is about to solidify, such as manual troweling or using a concrete trowel. For some large-area concrete troweling, it will make the Workers operate concrete trowels for troweling. The current technical considerations are not comprehensive and have the following disadvantages: when the concrete trowel is working, it needs to rotate and rub on the concrete surface when the trowel or the trowel is working, and for some solidification is faster The concrete will increase the frictional resistance, which increases the difficulty for the workers to operate the concrete trowel, and causes the concrete trowel to drop out of the hand when the workers are moving and working on a relatively firm concrete surface, and lose control and hurt people. phenomenon, and after the concrete trowel is out of control, it will not stop working immediately, but will continue to drive the handrail of the concrete trowel to rotate until the gasoline is exhausted. The rotating concrete trowel prevents workers from approaching and closing it, and concrete The trowel crashes or injures people, leading to a series of serious consequences

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