3results about How to "Security" patented technology

The application discloses a positioning surface machining device for building aluminum plate renovation, which comprises a box body and a positioning mechanism, and one end of the top of the box body is provided with a direction adjusting mechanism which can adjust the direction of the positioning mechanism. The application has the advantages that the direction angle of the positioning member can be adjusted through the direction adjusting mechanism, so that the positioning member can be rotated to a suitable position according to the requirement, and can be freely rotated and adjusted. In addition, the external mechanical arm can improve the efficiency of taking and placing the aluminum plate. The positioning mechanism is used for realizing the downward pressing and fixing of the aluminum plate, realizing the positioning operation of the aluminum plate, avoiding the position deviation during cutting, shielding and protecting the cutting completion through the structural design of the pressing frame, avoiding the spark splashing and the diffusion of the aluminum powder, facilitating the subsequent cleaning, avoiding the dust damage to the external loading and unloading equipment, and realizing the equipment protection effect.

The utility model discloses a lifting type safety rail for a coke oven maintenance platform. The lifting type safety rail comprises a rail and at least one group of rail components, the track is fixed on the coke car; each guardrail assembly comprises a vertical slide way fixed to the side wall below the maintenance platform and a handrail arranged on the vertical slide way in a sliding mode. An upper sliding block and a lower sliding block are arranged in the vertical sliding way from top to bottom in a sliding mode and connected through a connecting assembly. A wheel shaft of a roller matched with the track is fixedly arranged on the lower sliding block; the bottom end of the middle vertical rod is fixedly connected with the upper sliding block. The rail has the advantages that when the coke car moves, the rail can automatically descend along with the descending rail of the rail, so that interference with a coke pushing rod on the coke car is avoided; when the coke car stops moving and the coke oven needs to be overhauled, the handrail can be always in a descending state; when the coke car completes coke pushing or overhauling work and gradually gets away from the overhauling platform, the handrail can automatically ascend along with the lifting track, and safe and reliable protection is provided for overhauling workers.

The utility model discloses an anti-collision safety guardrail for a coke oven maintenance platform. The anti-collision safety guardrail comprises a lifting guardrail assembly and an anti-collision assembly, the anti-collision assembly comprises a laser range finder arranged on the maintenance platform, a displacement sensor arranged on the lifting type guardrail assembly, a PLC and an alarm. The signal output ends of the laser range finder and the displacement sensor are both in signal connection with the signal input end of the PLC, and the signal output end of the PLC is respectively in signal connection with the signal input ends of the alarm and the driving device of the coke pusher. The coke pusher maintenance platform has the advantages that the distance between the coke pusher and the maintenance platform and the lifting state of the guardrail are detected through the laser range finder and the displacement sensor respectively, and when the states of the coke pusher and the guardrail are not matched, the PLC triggers the alarm to give an alarm in time to remind workers to check and control starting and stopping of the coke pusher, so that safety accidents are avoided, and meanwhile the safety of the coke pusher is guaranteed. And the safety guardrail is prevented from being damaged due to collision with the coke pusher.