Low level horizontal jack's strenghthened type wallboard

The utility model relates to a low level horizontal jack's strenghthened type wallboard, the high wedge form in low back before its side view becomes, characterized by wallboard inboard middle sectiondown along welding a strengthening rib, it is high trapezoidal that the strengthening rib is preceding low back. Going up along the turn -ups that is equipped with outside fillet transition of wallboard not only makes the jack molding more pleasing to the eye, makes the intensity of wallboard further strengthen moreover, the lower edge of wallboard also is equipped with outside turn -ups, makes the jack during operation more firm. The utility model has the advantages of: under the circumstances of not thickening jack both sides monoblock wallboard, make the strength retention of wallboard unchangeable, along all being equipped with to the flanging, this not only makes the jack molding more pleasing to the eye to the wallboard from top to bottom simultaneously, and it is more firm to enable the during operation in