Wallboard compression stability test device

The invention provides a wallboard compression stability test device which comprises an upper pressing plate assembly, side supporting plate assemblies, a lower pressing plate assembly, an angle box assembly, an adjusting rod assembly and a rib clamping assembly, the upper pressing plate assembly is arranged above a test piece, the side supporting plates are arranged on the two sides of the test piece, the lower pressing plate is arranged below a test piece, the angle box assemblies are arranged between stringers at the two ends of the test piece and connected with a skin of the test piece through bolts, the adjusting rod assemblies are arranged between the side supporting plate assemblies, and the rib clamping assemblies are arranged on the adjusting rod assemblies in a matched mode. The components are mechanically connected to form an assembly relationship. The wallboard compression stability bearing capacity testing device is used for verification of a wallboard compression stability bearing capacity testi