A tool-free mechanism for disassembling and assembling the mower head and brush cutter blade

Abstract

The invention provides a mechanism for disassembling and assembling a grass trimming head of a grass trimmer and a blade of a brush cutter without tools. The mechanism comprises a working rod, a motor shell installed on the working rod, a motor installed in the motor shell, a rotor in the motor, a shaft in the rotor, an upper end cover at the upper end of the motor shell, a rigid cover, a cap and a protection cover which are installed at the lower end of the motor shell or a rigid cover and a protection cover which are installed at the lower end of the motor shell, the grass trimming head installed on the shaft or the blade installed on the shaft, and a nut for fixing the grass trimming head or the blade. The mechanism is characterized in that a pressing and braking column is arranged on the upper end cover, and a pressing and braking mechanism which can downwards press the pressing and braking column and press and brake the rotor so that the rotor can not rotate when the motor is in the non-working state is arranged on the pressing and braking column, the upper end cover and the rotor. By means of the mechanism, when the grass trimming head of the grass trimmer and the blade of the brush cutter are disassembled and assembled and the motor is in the non-working state, the rotor can be pressed and braked only by downwards pressing the pressing and braking column without other tools, and operation is convenient and safe; in addition, the mechanism can be easily improved on the existing grass trimmer and the existing brush cutter, and is low in manufacturing cost.

Description

technical field [0001] The invention belongs to the technical field of garden machinery and equipment, and in particular relates to a tool-free mechanism for disassembling and assembling the weeding head of the mowing machine and the blade of the brush cutter. Background technique [0002] Existing lawn trimmers and brush cutters that are used to repair lawns and shrubs outdoors have the following disadvantages when they disassemble and assemble the grass trimmers and blades on them: because one structure is the grass trimmer, brush trimmer The blade and the motor of the mower are installed as a component. When the mowing head needs to be disassembled and the blade of the brush cutter needs to be disassembled, their casings need to be dismantled and then disassembled. Difficult, and there is a risk of damaging other parts during the disassembly process; another structure is that there is a pressure plate in the lower part of the motor housing, and the pressure plate rotates ...

AI Technical Summary

Problems solved by technology

[0002] Existing lawn trimmers and brush cutters that are used to repair lawns and shrubs outdoors have the following disadvantages when they disassemble and assemble the grass trimmers and blades on them: because one structure is the grass trimmer, brush trimmer The blade and the motor of the mower are installed as a component. When the mowing head needs to be disassembled and the blade of the brush cutter needs to be disassembled, their casings need to be dismantled and then disassembled. Difficult, and there is a risk of damaging other parts during the disassembly process; another structure is that there is a pressure plate in the lower part of the motor housing, and the pressure plate rotates together with the motor output shaft. There is a hole in the lower part of the motor housing and the side of the pressure plate for a tool to be inserted. The disadvantage of this structure is that the hole on the side of the pressure plate must be aligned with the hole in the lower part of the motor housing when disassembling with a tool, and then insert the tool for positioning, and the tool may fall out at any time, which is very difficult when installing the brush cutter. easy to cut hands

Images