45results about How to "Helps to move" patented technology

The invention relates to the technical field of teaching instruments and equipment, and discloses a display stand capable of height adjustment for teaching. The display stand includes a stand surface;the left side on the upper surface of the stand surface is fixedly connected to a first baffle plate; the right side on the upper surface of the stand surface is fixedly connected to a second baffleplate; the left and right sides on the lower surface of the stand surface are fixedly connected to telescoping rods; the surfaces of the telescoping rods are sleeved by supporting legs; the centers onthe lower surfaces of the telescoping rods are fixedly connected to connecting blocks; and the lower surfaces of the connecting blocks are fixedly connected to sleeves. The problems that most existing display stands for teaching have definite shapes, single functions and poor use flexibility can be solved; and through the cooperative use between a C-shaped groove and grooves and rotating wheels and arranging rollers on the upper parts of the supporting legs, easy and convenient sliding of the telescoping rods can be realized when the telescoping rods slide in the supporting legs, stabilization of the telescoping rods can be achieved, the shaking of the telescoping rods can be prevented, and therefore, the stability of the display stand can be enhanced.

The invention relates to a rapid drying method for a cottonwood thick plate, and the method comprises the following steps of: at a preprocessing stage of a cottonwood, sawing the cottonwood to be plates with certain length and thickness according to operating requirements, stacking the plates and placing the plates into preprocessing equipment, then carrying out superheated steam preprocessing, and drying the preprocessed plates according to strengthening benchmark. In the rapid drying method, at the preprocessing stage of the cottonwood, constant-pressure superheated steam with temperatures of 110 DEG C-160 DEG C is used as a processing medium, therefore, not only can smooth and zero-defect of plate surfaces of the processed cottonwood be achieved, but also growth stress of the cottonwood can be released, a water passage inside a wood is opened, initial water ratio of the plates can be substantially reduced. A green wood is preprocessed, water ratio descending ratio is 40%-80%, descending mean value of the water ratio is above 60%,so that a drying stage time in a later period of the cottonwood can be greatly shortened. Compare with the conventional drying method, drying cycle is shortened above one half, energy sources are saved, drying cost is reduced, drying quality is favorable, and the rapid drying method is particularly applicable to cottonwood plates with thickness more than 5.0cm.