From jacking platform truck portal

The utility model provides a convenient operation, economic security's from jacking platform truck portal, including the mount, can be in the mount gliding sliding sleeve, can be on the sliding sleeve gliding portal main part, be equipped with evenly distributed's multirow fixed orifices on the mount, the both ends of sliding sleeve lower part are equipped with the fixed orifices, can fix on the mount, the both ends of portal main part lower part also are equipped with the fixed orifices, can fix on the mount, be equipped with the hydro -cylinder between sliding sleeve and the portal main part. The utility model discloses a from jacking platform truck portal, only need with the sliding sleeve carry on between segment structure and last segment structure down the relative slip can, need not carry out other operations, and have the overlap between every section member, improve and operate safety. Can also shorten hydro -cylinder length, economic security.