47results about How to "Realize free sliding" patented technology

The invention provides a three-directional movement decoupling periodic structure for a vibrating table model box. The periodic structure is formed by sequentially overlapping n periodic structure units, each periodic structure unit is formed by sequentially overlapping a first side limiting layer, a plane decoupling layer, a second side limiting layer and an elastic layer, n is a positive integerlarger than or equal to 2, the section shapes of the first side limiting layer, the plane decoupling layer, the second side limiting layer and the elastic layer are the same, and the periodic structure is used for three-directional movement decoupling under seismic oscillation conditions. The invention further provides a three-directional movement decoupling model box for vibrating table tests. The model box is composed of the periodic structure, a model box bottom plate and a limiting protection door type frame through combination. The model box is light in weight, high in strength and suitable for super gravity and normal gravity vibration table tests; it is ensured through multiple measures that the movements of the model box and a test soil body are synchronous, the movements in the X-direction, the Y-direction and the Z-direction between the model box and the test soil body do not interfere with one another, no additional acting force is generated by the model box on the test soil body and a boundary effect is avoided as much as possible; three-directional movement decoupling can be well realized, and prototype site characteristics are restored.

The invention discloses a dual-screen computer display. The display comprises a first display screen, a supporting seat arranged at the lower end of the first display screen, and a second display screen connected with the first display screen, wherein two slide chutes A in the horizontal direction are formed in the front face of the first display screen; two slide blocks are arranged on the back of the second display screen; the second display screen can slide on the first display screen left and right due to matching of the slide blocks and the slide chutes A; and the second display screen is separated into a slide module and a rotation module, hinges are arranged at corners of the slide module, the slide module is movably connected with the rotation module through the hinges, and the slide blocks are positioned on the slide module. The dual-screen computer display has the advantages that the second display screen can slide freely and can be folded if not required, so that space is not occupied; and the angle of the second display screen can be adjusted by rotating, so that two screens can be watched conveniently at the same time. Furthermore, the dual-screen computer display is reasonable in integral structure, convenient to operate, and long in service life.

The invention belongs to the technical field of windows, and particularly discloses an automatic cleaning and ash-removing window. The automatic cleaning and ash-removing window comprises a window main body and a sliding groove, the window main body is slidably connected to the sliding groove, a vertical second guiding hole is formed in the side wall of the window main body, a second shaft rod isslidably connected into the second guiding hole, the second shaft rod is axially perpendicular to the second guiding hole, a cleaning wheel is rotatably connected to the end part of the second shaft rod, and the outer wall of the cleaning wheel abuts against the inner surface of the sliding groove. According to the automatic cleaning and ash-removing window, the problem that it is difficult to clean a sliding groove of a push-pull window is solved.

The present invention provides a three-way motion decoupling periodic structure used in a shaking table model box. The periodic structure is formed by stacking n periodic structural units sequentially. The coupling layer, the second confinement layer, and the elastic layer are stacked in sequence, and n≥2 is a positive integer, and the cross-sectional shapes of the first confinement layer, the elastic layer, the second confinement layer, and the plane decoupling layer are the same, The periodic structure is used to realize the decoupling of the three-way motion under the working condition of the earthquake; the present invention also provides a three-way motion decoupling model box for the shaking table test, which is composed of the periodic structure, the bottom plate of the model box, and the limit protection door type. The model box is light in weight and high in strength, and is suitable for supergravity and normal gravity shaking table tests, and multiple measures are taken to ensure the synchronization of the movement of the model box and the test soil, and the movement of the model box and the test soil in X, Y The movements in the three directions of , and Z do not interfere with each other, the model box does not generate additional force on the test soil, and the boundary effect is avoided as much as possible. It can well realize the decoupling of the three-way movement and restore the characteristics of the prototype site.

The invention relates to a movable safety grille which relates to the technical field of safety protection in buildings. The purpose of the invention is to provide a movable safety grille which can befreely opened and closed and has a simple structure. The grille comprises a square grille frame and sliders, wherein the grille frame comprises a first guide rail and a second guide rail oppositely arranged in a horizontal direction, and a first fixed end and a second fixed end oppositely arranged in a vertical direction. Each slider comprises a connecting rod, a first lifting wheel connected with the top of the connecting rod and a second lifting wheel connected with the bottom of the connecting rod, wherein the first lifting wheel is used for being arranged on the first guide rail in a sliding manner, and the second lifting wheel is used for being arranged on the second guide rail in a sliding manner. Two adjacent sliders are connected to each other via an adjustable connector. By usingthe first guide rail and the second guide rail as slideways, the grille is simple in operation, free in opening and closing, high in use flexibility, and simple in structure.