80results about How to "Guaranteed placement stability" patented technology

The invention relates to the field of advertising boards, in particular to an LED advertising board. The board comprises a bottom plate, damping structures, a shaking structure and a heat dissipationstructure; the shaking structure comprises an LED screen, hydraulic cylinders, vertical rods, limiting rods, gears, swinging rods, rotating shafts, rack rods, arc-shaped sliding rails and arc-shaped sliding blocks; the two parallel vertical rods are connected to the surface of one side wall of the bottom plate; swinging rods are rotationally connected between the two vertical rods through rotatingshafts correspondingly; the rear side face of the LED screen is fixedly connected with the swinging rods; the adjacent side faces of the top ends of the two vertical rods are connected with the arc-shaped sliding rails correspondingly; the two side walls of the top of the LED screen are connected with the arc-shaped sliding blocks correspondingly; the arc-shaped sliding blocks are slidably connected with the interiors of the arc-shaped sliding rails; and the hydraulic cylinders are arranged on the rear side walls of the vertical rods. The LED advertising board has the advantages that people can look up advertisements on the surface of the LED screen at inclined angles, and it is effectively ensured that people in multiple areas can watch the advertisements on the LED screen, so that the commercial value is ensured.

The invention discloses a traditional village building exhibition stand and a display method thereof. The exhibition stand comprises an exhibition stand body, a containing groove, a supporting block,a baffle, a hinge, a second limiting groove and a clamping groove, wherein the containing groove is formed in one side of the outer wall of the upper end of the exhibition stand body, connecting blocks are symmetrically arranged on one side of the outer wall of the upper end of the exhibition stand body, first limiting grooves are formed in the outer walls of the opposite sides of the two connecting blocks correspondingly, electric push rods are symmetrically arranged at the lower end of the inner wall of the containing groove, fixing plates are arranged on one sides of the outer walls of theupper ends of the electric push rods, sliding grooves are formed in the two sides of the inner wall of the containing groove correspondingly, first connecting plates are arranged on one sides of the outer walls of the upper ends of the fixing plates, supporting frames are symmetrically arranged on one sides of the outer walls of the upper ends of the first connecting plates, and the baffle is arranged in the supporting block. According to the exhibition stand and the method, by arranging balls, dustproof cloth and a pressing plate, the advantages that a building display model is convenient tofix, a dustproof device is additionally arranged, and the display angle of the building display model is convenient to change are achieved.

The invention discloses a stackable automatic leveling supporting leg structure. A torsion ring is arranged in a fixing base installed below an object, connecting columns of supporting legs penetratethe fixing base and extend into a torsion groove of the torsion ring, and shifting teeth are arranged between the connecting columns and the torsion groove. When the ground is uneven, the supporting legs rotate adaptively through the interaction of the torsion ring and the shifting teeth, so that automatic leveling is realized. Meanwhile, the supporting legs are obliquely arranged, and the mounting heights between part of the supporting legs and the fixing base are different, so that the supporting legs at lower mounting heights can be arranged below the higher supporting legs with the adjacent supporting leg structures to form stacking in a horizontal direction. According to the stackable automatic leveling supporting leg structure, automatic leveling of an object can be achieved, and theobject leveling difficulty is greatly lowered; the supporting leg structures can be stacked, the space occupation requirement is reduced; the stacking direction is horizontal, the operation is convenient, and the supporting leg structure can be suitable for heavy objects.