4results about How to "Anti-vibration" patented technology

This invention provides a zoom lens with anti-vibration properties, which facilitates miniaturization and weight reduction while maintaining good optical performance, and a camera device equipped with the zoom lens. The zoom lens, from the object side towards the image side, sequentially comprises a first lens group with positive refractive power, a second lens group with negative refractive power, an intermediate group with positive refractive power, and a subsequent group with negative refractive power. The first lens group moves during zooming. The second lens group, from the object side towards the image side, sequentially includes a front group of the second lens group that remains stationary during image shake correction and an anti-vibration group with negative refractive power that moves during image shake correction. The zoom lens satisfies a predetermined conditional expression.

This utility model discloses a telescopic compensation type layered water injection sealing device, which includes a rubber sleeve and a spring. The upper and lower rubber sleeves, installed outside the upper and lower water injection pipes respectively, have hydraulic chambers one and two connected by a connecting hose. A pressure transmission hole in the upper water injection pipe, connected to hydraulic chamber one, is connected to a hydraulic pump on the ground via a hydraulic pipeline. The upper and lower water injection pipes are connected by a telescopic compensation mechanism. The spring is installed between the sealing cylinder and the telescopic sleeve in the telescopic compensation mechanism. The upper water injection pipe, sealing cylinder, corrugated pipe, sealing sleeve, and a fixing ring installed outside the lower water injection pipe and below the telescopic sleeve are sequentially fixedly connected. The lower water injection pipe can move up and down within the telescopic sleeve and the fixing ring. The telescopic compensation mechanism absorbs vibration energy generated during water injection and compensates for sealing gaps. This device is suitable for high-efficiency layered water injection tubing in oilfield development, providing vibration and creep prevention effects.

This invention belongs to the field of energy storage technology, specifically a mobile intelligent energy storage balancing and management system based on supercapacitor modules. It includes an energy storage module composed of multiple supercapacitor cells connected in series; a high-precision synchronous sampling unit for real-time acquisition of terminal voltage, temperature, and leakage current parameters of each supercapacitor cell, supporting millisecond-level synchronous triggering; a lightweight active balancing unit that achieves directional energy transfer between adjacent or spanning cells through a multi-channel controllable MOSFET switching network; and, based on millisecond-level synchronous data, integrating load condition identification and cell aging prediction models, dynamically generating and executing a feedforward-feedback composite balancing strategy. This allows the system to trigger preventative balancing operations before drastic parameter changes occur due to moving bumps, pulse discharges, or other conditions, suppressing inconsistencies at their inception. This significantly improves the timeliness, accuracy, and energy utilization efficiency of balancing, extending the overall lifespan of the module.

The application discloses a high-precision plug core product forming die and a forming method, and relates to the field of injection molding dies. In view of the MT plug core forming problem of an ultra-fine inner hole, a multi-section split die core structure is adopted, the cavity is divided into an upper forming block, a lower forming block and a sealing block, an ultra-fine hole forming needle and a hole forming rod of tungsten steel material are used to form the cable fine hole; the inner forming block and the sealing block are integrally formed by oil cutting, the tail end of the hole forming needle is axially and angularly fixed through a connecting device; a matching anti-shaking multi-slider mechanism is used to stably translate the sealing block through cooperation of an inclined rod and an inclined channel, and a spring is used to eliminate transmission clearance; integrated mold temperature automatic measurement, cavity pressure real-time sensing and exhaust sealing structure are used to realize closed-loop monitoring in the forming process. The application effectively avoids the breakage of the slender insert during processing and the injection deformation, improves the forming precision of the ultra-fine inner hole, and improves the product consistency and yield.