31results about How to "Avoid top dead phenomenon" patented technology

The invention relates to a rotary vane type viscous damper which comprises a gear transmission amplification device and a rotary vane type viscous damper body. The gear transmission amplification device is composed of a closed protective shell, damper connecting pieces, an acceleration transmission system and an input rod. Leading connectors and rotating shafts are arranged on the damper connecting pieces; a row of tooth structures with large curvature are arranged on the upper portion of the input rod; and the acceleration transmission system is composed of an input rod tooth structure, a transmission gear and rotary vanes, the input rod tooth structure is engaged with the transmission gear, and the transmission gear and the rotary vanes rotate coaxially. The rotary vane type viscous damper body is composed of a cylindrical closed box body, viscous liquid inside the box body and the rotary vanes provided with circulation holes in the outer side. Under the action of wind or / and an earthquake and the like, by means of the relative displacement of gear transmission base / floors, the radius ratios of the transmission gear and the rotary vanes are arranged to amplify linear displacement of the outer sides of the vanes, and the viscous liquid inside the box body is forced to generate a certain flow rate through the circulation holes in a short time to dissipate energy. The rotary vane type viscous damper can effectively improve the vibration control efficiency of the building structure when deformation of the building structure is less or slow.

The invention discloses a computer cabinet. The computer cabinet comprises a cabinet body (2) and a door cover (20) which covers an opening of the cabinet body (2) in a removable way, wherein a locking hook body (60) is integrally arranged on an inner side, which faces the cabinet body, of the door cover (20), and used for passing through a through hole (200) in a wall part of the cabinet body and being jointed with an inner side of the wall part through a hook tail end (601) in order to lock the door cover (20) on the cabinet body; a driving recess (309) is further arranged on the inner side of the door cover (20), and used for being jointed with a driving block (30) in order to be driven by the driving block (30) to move along a direction being parallel to a plane of the wall part and a direction being vertical to the plane of the wall part, thereby unlocking the locking hook body (60); and a driving joint bump (303) is arranged on an inner side of the driving block (30), and used for being matched with a joint recess (402) in an inner threaded slide block (40) which is driven by a screw (50) in a threaded way.

The invention discloses a noise reduction computer cabinet with a cushion. The noise reduction computer cabinet comprises a cabinet body (2) and a door cover (20) which covers an opening of the cabinet body (2) in a removable way, wherein a locking hook body (60) is integrally arranged on an inner side, which faces the cabinet body, of the door cover (20), and used for passing through a through hole (200) in a wall part of the cabinet body and being jointed with an inner side of the wall part through a hook tail end (601) in order to lock the door cover (20) on the cabinet body; a driving recess (309) is further arranged on the inner side of the door cover (20), and used for being jointed with a driving block (30) in order to be driven by the driving block (30) to move along a direction being parallel to a plane of the wall part and a direction being vertical to the plane of the wall part, thereby unlocking the locking hook body (60); and a driving joint bump (303) is arranged on an inner side of the driving block (30), and used for being matched with a joint recess (402) in an inner threaded slide block (40) which is driven by a screw (50) in a threaded way.

The invention discloses a movable computer cabinet capable of being cooled quickly. The movable computer cabinet comprises a cabinet body (2) and a door closure (20) which removably covers an opening of the cabinet body (2), a displacement mechanism is arranged at the bottom of the cabinet body (2), the displacement mechanism comprises support frames (6) and moving wheels (7) fixedly arranged on the support frames (6), the support frames (6) are fixedly connected with the cabinet body (2), and the side, facing the cabinet body, of the door closure (20) is integrally provided with a locking hook body (60), wherein the locking hook body (60) is used for passing through a through hole (200) in the wall portion of the cabinet body and is jointed with the inner side of the wall portion through a hook tail end (601), so that the door closure (20) can be locked to the cabinet body; the inner side of the door closure (20) is further provided with a driving recessed portion (309) used for being jointed with a driving block (30), and accordingly, the driving block (30) conducts driving in the direction in parallel with the plane of the wall portion and the direction perpendicular to the plane of the wall portion, so that the locking hook body (60) can be unlocked.