5results about How to "Realize automatic protection" patented technology

The application relates to the technical field of building energy saving, in particular to a building heat energy recovery device, which comprises support end plates installed at the two ends of a heat collecting plate, a fixed support fixedly connected to one side of the support end plate, and support legs connected to the surface of the support end plate; a selection groove is formed in the surface of the fixed support, a driving chain is rotatably arranged in the selection groove, and a guide column is fixedly installed on the surface of the driving chain; a protection plate is arranged outside the support end plate, and a connecting hole is formed in the surface of the protection plate; two groups of driving rods are driven to rotate by a servo motor, the driving rods drive the driving chain to rotate through guide grooves, the driving chain drives multiple protection plates to move, in the moving process of the protection plates, a driving gear drives a rotating shaft support frame to rotate through a gear, the rotating shaft support frame drives a cleaning roller brush to synchronously rotate, when the protection plates move above the heat collecting plate, the cleaning roller brush rolls and brushes the surface of the heat collecting plate, so that dust adhered to the surface of the heat collecting plate falls off, and the surface of the heat collecting plate is cleaned.

The utility model discloses a protective cover for a gas tank, which comprises a connecting part in threaded connection with a bottle opening of a steel bottle, a supporting part is arranged on the connecting part, a protective cover is mounted outside the supporting part in a sliding manner, and avoiding areas are arranged on the connecting part and the protective cover; a spring is further arranged between the supporting part and the protective cover, and the protective cover is promoted to move upwards through the spring; the face, away from the connecting part, of the protective cover is of an open structure so that a valve on the steel cylinder can be exposed when the protective cover moves downwards. As the connecting part is in threaded connection with the bottle opening of the steel bottle, on one hand, the connecting part can be reliably fixed on the bottle opening when no external force exists; secondly, when the connecting part is rotated until the avoiding area and the air outlet of the valve are staggered, the air outlet of the valve can be protected; when no external force exists, the protection cover can automatically move upwards under the action of the spring, and then the protection cover is promoted to cover the valve at the bottle opening, so that automatic protection on the valve is achieved.

The invention discloses a strength detection mechanism for finished building materials, and belongs to the technical field of strength detection mechanisms for building materials, the strength detection mechanism comprises a machine base, a support is fixedly mounted above the machine base, a guide column is vertically and fixedly mounted on the support, a housing is further fixedly mounted on the machine base, a hydraulic cylinder is fixedly mounted at the upper end of the support, and the hydraulic cylinder is fixedly mounted on the lower end of the support. A sensor is fixedly mounted at the output end of the hydraulic cylinder, a movable plate is fixedly mounted below the sensor, a pressure applying plate is elastically connected below the movable plate, a pressure applying head is fixedly mounted in the middle of the lower surface of the pressure applying plate, and a partition plate is fixedly mounted on the side wall of the support; a positioning assembly used for clamping and fixing building materials is fixedly installed on the partition plate. According to the strength detection mechanism for the finished building materials, falling scraps can be automatically cleaned and collected after the building materials are broken, automatic protection can be achieved, and the detection safety is further improved under the condition that observation is not affected.

The utility model provides an aluminum casting pre-press, which relates to the technical field of aluminum casting production equipment, and comprises a base, the top of the base is fixedly connected with a support rod, the top of the support rod is fixedly connected with a top plate, the outer side of the base is provided with a controller, the top of the top plate is provided with a stamping mechanism, and the stamping mechanism is provided with a stamping mechanism. A stamping groove is fixedly connected to the top of the base, a lifting mechanism is arranged on the outer side of the stamping groove, and the stamping mechanism comprises a hydraulic cylinder. The micro motor of the lifting mechanism drives the lead screw to rotate, the movable block is driven to move up and down along the lead screw, the L-shaped rod is in linkage with the sliding ring to slide on the fixed rod, and finally the lifting plate stably ascends and descends in the punching groove. The structure supports millimeter-level fine adjustment (the adjustment precision is + / -0.5 mm) of the height of the lifting plate, is adaptive to aluminum casting blanks with different thicknesses, and avoids excessive or insufficient stamping caused by blank size difference.

This utility model relates to the field of electric forklift charging technology, and in particular to a fast charging device for electric forklifts. It includes a bracket with a vertical support rod, and a charging gun with a protective component. The protective component includes a housing fixed to the charging gun's outer shell, a dual-axis motor housed within the housing, a worm gear driven by both ends of the dual-axis motor, a worm wheel driven by the worm gear, a vertical shaft driven by the worm wheel, a horizontal connecting rod connected to the vertical shaft, and a protective cover at the end of the horizontal connecting rod. The two protective covers rotatably cover the front connector of the charging gun to protect it. By providing a protective component driven by a dual-axis motor, worm gear, and other transmission mechanisms on the charging gun, the protective cover of this component can automatically open and close, thereby achieving automatic protection of the front connector of the charging gun.