3results about How to "Realize automatic decoupling" patented technology

A kind of unhooking lifting appliance for crossbeam hoisting, including plate body, lifting rope, rotating disc, torsional spring, winding disc, pull rope and synchronous rotating mechanism. Wherein, rotating disc is equipped with pawl, driving pulley and two rope passing holes, two rope passing holes are symmetrically arranged about the center of rotating disc;Winding disc is equipped with winding rope disc and ratchet, ratchet is matched with pawl;The middle part of pull rope is wound on winding disc, and hook is fixed on the end of pull rope;Synchronous rotating mechanism includes synchronous belt and rotating hook, driven pulley and hook plate are arranged on rotating hook, driven pulley is connected with driving pulley by synchronous belt. Rotating disc, winding disc and pull rope constitute automatic centering mechanism, two hooks are respectively hooked in the two ends of crossbeam, can make this lifting appliance automatically move to the central part of crossbeam, make lifting heart and the gravity center of crossbeam coincide, solve the unbalance problem of crossbeam when hoisting. This lifting appliance saves time and effort, automatically realizes the hooking and unhooking of crossbeam, eliminates the unsafe factors in the existing hoisting mode.

The utility model belongs to pipe hoisting technical field, specifically provide a hoisting device for pipe sinking construction, including stand, sliding unit, connecting rod unit and clamping unit, sliding unit can slide up and down along stand, the top of stand has the lifting ring, sliding unit has first lifting lug, the lifting ring and first lifting lug are connected respectively different lifting hooks, sliding unit moves up and down can drive connecting rod unit to gather or open, further drive multiple clamping units to expand outward or contract inward simultaneously, realize the action of clamping or disengaging pipe. The utility model provides a hoisting device for pipe sinking construction can hoist and transport vertical pipe and realize automatic unhooking, satisfy the construction demand of deep well engineering. Compared with manual unhooking mode, adopt the lifting hook and the lifting rope control sliding unit along the stand and slide to realize automatic unhooking, more safe, construction efficiency is high. Compared with the mode that other power equipment drives the clamp unhooking, the structure is simpler, and the manufacturing cost is low.

The invention discloses a method and device for optimizing the sound effect in a passenger vehicle cabin, and relates to the technical field of vehicle-mounted audio signal processing, and the method comprises the steps: obtaining an initial reference response vector representing the factory ideal state of a loudspeaker; when the monitoring trigger condition is met, controlling a power amplifier to generate a standard test excitation signal to drive a loudspeaker group, and constructing a current state response vector through a voice acquisition unit; constructing a spectrum deviation vector based on the difference value, and eliminating the frequency response interference of the acquisition unit by using a relative measurement mechanism; calling a preset sound field transfer function matrix model, taking the spectrum deviation vector as input, and calculating a channel gain adjustment vector through an inverse problem solving algorithm containing regularization constraint; and finally, updating audio processing parameters according to the vector and executing closed-loop checking. According to the invention, by using the existing vehicle-mounted hardware, automatic monitoring and accurate compensation of the aging characteristic of the loudspeaker are realized, and the sound effect consistency in the vehicle life cycle is effectively maintained.