Road wheel

Abstract

A road wheel solves the problem of sinking in a soft land. The road wheel is provided with an extended rim leather (230), of which the width is greater than that of the road wheel to prevent from sinking. The edges of the extended rim leather (230) sleeve the road wheel of a facility, and the inner side of the extended rim leather (230) is provided with a clamping device (231) including an elastic sheet (233) and a clamping sheet (232). The road wheel is provided with a plurality of tentacles (235) and annular adjusting loops (234) with worm gears for adjusting the extending angles of the tentacles (235), and adjustable wrench type tooth bars (237) matching with the worm gears are arranged on the annular adjusting loops. The self-locking characteristics of worm-gear tooth bar kinematic pairs are utilized. The functional curve spokes of the road wheel are logarithmic spiral lines, of which the pressure angles are equal at every place, cubic curves with impact alleviating characteristics, circular envelope curves, or functional curve spokes with constant acceleration transition curve. The road wheel is applicable to garden tools of various type. The tentacles of the road wheel finely adjust the grass seed sowing depth, or finely adjust the particle fertilizing depth or serve as the grass combing teeth of a grass combing device.

Description

technical field [0001] The invention relates to a walking wheel, which is used for a lawn mower for mowing lawns in gardens, parks, roads, etc., for a lawn mower with two lithium battery boxes, and for a logarithmic wheel with automatic brake protection Helical brakes and series-excited motor electric lawn mowers with chassis anti-collision safety belt function wave disc brakes, as well as logarithmic helical brakes with self-stopping, grass cutting heads, watering and Multifunctional lawn mower with hose reel for liquid lines for fertilization and spraying. Background technique [0002] Lawn mowers are widely used to mow grass in the manner chosen by people. When some pedestrians like and are used to using lawn mowers, they put a little more force on the rear upper armrest and have a feeling of leaning and pressing down, which virtually increases the possibility of the front wheels being tilted and suspended. ; and the design of the lawn mower should also take care of the...

AI Technical Summary

Problems solved by technology

[0006] Why use a cord reel? Because of the long wires scattered on the ground, when the electric lawn mower mows back and forth, sometimes it is accidentally stepped on by feet or crushed by wheels, which affects safety; If the wire is not long enough, mowing is suspended, or the wire is managed manually, which increases safety hazards

Why put a cord reel on an electric lawn mower? Anyone who has used an electric lawn mower knows that weeds often leak when mowing, and they have to be re-mowed. Especially when the environment is complex, such as bushes mixed with the lawn, it is necessary to take several steps forward and several times and repeat the mowing from left to right. Grass; if the reel is placed far away, the wires near the lawn mower cannot be pulled in and out synchronously with the pull and stop in time, or they will fall to the ground limply, and there is a danger of being stepped on or crushed by wheels, or they cannot be pulled in and out in time. Line in and out

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