2results about How to "Accurate and efficient judgment" patented technology

The application discloses a door lock device, a washing machine and a control method, the door lock device comprising a lock hook mechanism, the lock hook mechanism comprising: a lock seat; a lock hook piece rotatably arranged in the lock seat to open or lock the door lock; and a position detection bracket, a middle part of the position detection bracket being rotatably arranged on the lock seat, one end of the position detection bracket being in position limiting cooperation with the lock hook piece, and the other end of the position detection bracket being provided with a detected terminal. The washing machine is provided with the door lock device between an inner drum and an inner drum door; whether the lock hook mechanism is locked in place is judged by detecting the position of the detected terminal by a position sensor. Under the action of the position detection bracket, the position of the lock hook piece changes slightly, the displacement of the end of the detected terminal is amplified by several times, the position sensor can more easily identify the position of the lock hook piece, and whether the door lock device is locked in place can be more accurately and efficiently judged, the detection accuracy is improved, and the safety of the washing machine operation is ensured.

The present application relates to the technical field of cold-rolling continuous production line maintenance, in particular to an intelligent switching type supporting roller maintenance system and method. The supporting roller maintenance system comprises a plurality of lifting type supporting rollers arranged side by side on the cold-rolling continuous production line, and a strip steel is arranged on the supporting roller. Each lifting type supporting roller is composed of a roller body, a supporting base, a support, a lifting adjusting mechanism, a fault detection device and an alarm device. The supporting roller maintenance method can improve the maintenance efficiency of the supporting roller of the cold-rolling continuous production line, and does not affect the production operation of the continuous production line.