An anti-dropping device for a hand trowel

Abstract

The invention provides a hands-off prevention device for a hand trowel. The utility model solves the problem that the existing hand-held troweling machine is easy to get out of the hand and cause the operator to be injured. The anti-dropping device used for hand-held troweling machines includes a protective platform, the protective platform is fixed on the hand-held troweling machine, a fixed block is fixed above the protective platform, a rotating groove is opened on the fixed block, and a rotating groove is arranged inside the rotating groove. Two relatively rotating telescopic mechanisms, each telescopic mechanism includes an electric push rod, one end of the electric push rod is rotatably arranged inside the rotating groove, a second snap ring is fixed on the side of the electric push rod, and the other end of the electric push rod is hinged There is a limit rod, the side of the limit rod is fixed with a first snap ring, a tightening spring is connected between the first snap ring and the second snap ring, and the other end of the limit rod is rotated and connected with a sliding mechanism; There is an adjustment limit mechanism. The invention can prevent the operator from being injured due to the hand-held troweling machine being out of hand and reduce the labor intensity of the operator.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to a hand-off prevention device, in particular to an anti-hand-off device for a hand trowel. Background technique [0002] The troweling machine is also called a finishing machine. The common troweling machine is a hand-held troweling machine. It is widely used for smoothing cement roads. The main structure is a gasoline engine-driven trowel rotor. Knife. The inclination direction of the spatula is consistent with the rotation direction of the rotor, and the V-belt is driven by the gasoline engine to make the rotor of the spatula rotate. When operating, turn on the fire first, hold the control handle, push the two together to move forward, and pull them together to move backward. On average, it can do 100-300 square meters per hour, which can be improved compared with manual troweling. The work efficiency is more than 30 times. [0003] The existing hand-held troweling machine ne...

AI Technical Summary

Problems solved by technology

[0005] This kind of anti-dropping device for single-disk troweling machine still requires the operator to hold it hard to prevent the trowel from being released from the hand. It only connects the staff and the single-disc troweling machine through the connecting rope. If the staff loses strength, it is easy to cause injury to the staff. At the same time, this single-disk trowel still cannot reduce the labor intensity of the staff. Therefore, we propose a hand-held trowel that prevents the operator from being injured and reduces the labor intensity of the operator.

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