3results about How to "No electricity required" patented technology

This utility model discloses a hand-cranked activated carbon cleaning device, including a cleaning hood mounted between fixed supports via a horizontal shaft. Both ends of the cleaning hood are sealed with support panels. A mesh is evenly distributed on the outer cover between the support panels, and a feed inlet is also provided on the outer cover. Both ends of the horizontal shaft extend out from the support panels, with the extended portions resting on the fixed supports. One end is connected to a hand crank handle. The horizontal shaft is also fixedly connected to the support panels. A water pipe support is provided beside the fixed supports, with the water pipe horizontally mounted on the support and positioned above the cleaning hood. Multiple nozzles are arranged on the water pipe. This utility model device has a simple structure and low cost, suitable for activated carbon cleaning needs in environments without electricity or in small-scale scenarios, as well as for cleaning small-scale (1-20 kg) activated carbon in laboratories.

The invention relates to the technical field of electric energy metering boxes, in particular to a modular electric energy metering box which comprises a box body, a storage plate is movably arranged on the box body, a storage groove is formed in the storage plate, the storage plate can move to the position below the box body, and an opening of the storage groove faces upwards. And the storage plate can also move to the upper part of the box body and is arranged on the top wall of the box body. The storage plate is arranged to be of a structure capable of moving to the position below or above the box body, so that an operator can flexibly adjust the position of the storage plate according to actual requirements, and the functionality of the storage plate is improved.

This invention discloses an automatic backflow prevention and blocking device for intravenous infusion, relating to the field of medical device technology. It includes a housing assembly comprising a cylindrical body, a liquid chamber, and a drain pipe. The liquid chamber is located inside the cylindrical body, which houses a first blocking component, a flow control component, and a second blocking component. The first blocking component includes a floating shell, a collection tank, and a sealing ring, with the floating shell slidably positioned at the top of the liquid chamber. This invention employs an upper first blocking component and a lower second blocking component, combined with a spring adaptive reset mechanism, to automatically block the pipeline under various abnormal conditions, providing dual backflow prevention, high sealing accuracy, and strong fault tolerance, effectively solving the problems of backflow blockage and bleeding during infusion. In this invention, the flow control component automatically adjusts the flow opening based on the linkage between the drug pressure and the spring compression stroke, perfectly adapting to all scenarios of conventional high-flow infusion and low-speed micro-infusion, thoroughly improving the shortcomings of low-speed micro-backflow and high-speed flow restriction.