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[CN 201720554372.8] safety door plate hydraulic press
[CN 201720554372.8] Title of a safety door panel hydraulic press: Application number of a safety door panel hydraulic press: CN 201720554372.8 Applicant: Zhejiang Xingyue Security Technology Co., Ltd. Application date: 2017-5-18 Patent type: Utility model A safety door panel hydraulic press includes a base and a top box. The hydraulic drive device is connected with a safety monitoring circuit, and the safety monitoring circuit includes a plurality of grating units, it is arranged on the bottom surface of the hydraulic block and evenly distributed along each side of the bottom surface, and each grating unit is arranged downward and feeds back the ranging voltage; the variable reference unit includes a rheostat, the moving contact of the rheostat is linked with the hydraulic block to provide a reference voltage, and the reference voltage follows the position change of the hydraulic block, so that during the process of lowering the hydraulic block, the reference voltage is reduced. The comparison unit includes a plurality of comparators, each comparator is connected to a grating unit and configured to receive a ranging voltage, the comparison unit is coupled to the variable reference unit, and when the ranging voltage received by a comparator is less than the reference voltage, the comparison unit outputs the lifting signal to control the driving device to lift. To achieve security.
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