The present invention stop when safe landing of the unicycle transport mechanism that is not only one of each of the front and rear wheels for farming transport mechanism or the height of the rear bodywork for the wins started driving again, faster and lowering operation, simple structure, especially extremely simple and easy to be adjusted as well, but its operation efficiency can contribute greatly to the stable operation start time and easy to very high is that the new structure of the adjuster. ; In other words, in the conventional agricultural unicycle transport mechanism, the chukbong insertion groove 131, the upper sides of the housing 130 for coupling with the locking wheel for the opening 140 is formed, for engaging the top sides of the opening (140) and the rear wheel of the corresponding position chukbong 121 forming the engaging groove 122 of a certain depth, and then, the opening for the engaging (140 ) There is locking up and down automatically at the same time, oil, jam-release cinema is by configuring the resilient spring-like height adjustment clip (200) which can be easily and simply just be arch back off lightly with a worker knees.
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