Image branch of academic or vocational study is with readding piece lamp house

The utility model provides an easy operation, convenient to use's image branch of academic or vocational study is with readding piece lamp house, correspond fixedly connected with stand respectively about the shell of the viewing aperture left and right sides, every stand outward about all sliding connection have vertical sliding sleeve, control fixedly connected with crossbeam between vertical sliding sleeve, sliding connection is controlled outward to the crossbeam has horizontal sliding sleeve, horizontal sliding sleeve articulates outward has the sleeve, be connected with the torsional spring between sleeve and the horizontal sliding sleeve, the outer fixedly connected with elasticity clamping bar of sleeve, the free end of elasticity clamping bar is located the sleeve below, the middle part of elasticity clamping bar under the effort of torsional spring with light -passing board in close contact with, the free end of elasticity clamping bar is located the front side of light -passing board. Fix image dat