Be applied to wall -hanging blackboard that is used for computer teaching of computer lab

The utility model provides a be applied to wall -hanging blackboard that is used for computer teaching of computer lab includes two hanging devices, it includes hanging installation component and a blackboard installation component, blackboard installation component extend in hanging installation component to form a first hanging chamber, and a blackboard device, it includes writes the component, two longitudinal framings, and two transverse frame and a bearing component, the both ends of longitudinal framing extend with connect in transverse frame's both ends, write the component extend all around with connect in the longitudinal framing with transverse frame, transverse frame is equipped with a fixed component, fixed component extend in transverse frame is in order to form a second hanging chamber, blackboard installation component held in second hanging chamber, fixed component held in first hanging chamber, transverse frame still is equipped with a constant head tank, the bearing component is equipped with a positioning components, positioning components is positioned transverse frame the constant head tank.