3results about How to "Reasonable support" patented technology

The utility model relates to medical image auxiliary device field discloses a head fixing cover for nuclear magnetic resonance examination. The fixing cover includes fixed base, head cover, head fixing assembly, buffer gasket and neck support pillow, is equipped with the sliding slot on the fixed base, and the neck support pillow bottom and sliding slot sliding cooperation, the head cover is connected with the fixed base through the pivot, and is equipped with the buckle, the head cover top sets up head fixing assembly, including thread sleeve, threaded column, handle and elastic pressure cap, and the buffer gasket is attached in the head cover inner wall. All structures are made of nonmetal, nonmagnetic material. The structure can realize multidirectional stable positioning to the head, has good adjustability and MRI compatibility, and is suitable for the fixed support of head in the process of nuclear magnetic resonance examination.

The utility model discloses a kind of trench hydraulic support structures, to solve the problems of existing trench support structure, such as inconvenient depth expansion, unstable connection, unreasonable support and poor component matching precision.The structure includes upright, support plate, top surrounding purlin, bottom support, and middle support can also be set according to requirement.Upright inside is trapezoidal section double-track parallel guide rail, support plate both ends have T-shaped end head engaged with it, gap fit between the two and T-shaped end head with wear layer.Support plate is modular steel plate, and depth expansion can be realized by layer-by-layer installation through hydraulic propulsion device.Top surrounding purlin is H-shaped steel beam, fixed on the top of upright by connecting assembly;Bottom support is H-shaped steel component, connected to the bottom of upright.Middle support is telescopic sleeve type rod, installed when excavation depth is greater than or equal to 2m.The structure is stable in connection, reasonable in support, high in component matching precision, and can improve the safety, stability and construction efficiency of trench support.

The utility model discloses white corundum iron removal screening device, and the device is constituted by magnetic separator body, magnetic screening conveyer and material flat laying mechanism. The magnetic separator body is equipped with the rack for supporting, and the inside is provided with the iron impurity conveyer for receiving the iron impurity, and the front end places the white corundum hopper. The magnetic screening conveyer is fixed in the rack through the hanger, and the magnetic roller is driven to rotate by the driving motor, and then drives the conveyer belt to run, realizes the conveying of material, and the magnetic roller can adsorb the iron impurity. The material flat laying mechanism is installed at the top of the magnetic separator body, and the cylinder can adjust the telescopic shaft position according to the feedback of infrared distance sensor, makes the comb material grate comb the white corundum material on the conveyer belt and lay flat, improves the iron removal effect. The iron impurity falls into the iron impurity conveyer and is carried away after separating from the magnetic adsorption, and the pure white corundum material falls into the white corundum hopper, and the screening and iron removal operation is completed.