2results about How to "Reduce residual" patented technology

The utility model relates to a kind of multi-way valve structure suitable for trace liquid medicine delivery and its trace liquid medicine delivery system, including valve body and valve core. Valve body is provided with several circumferential interfaces, valve core is rotatably installed in valve body, valve core is provided with selection interface, by rotating valve core, the communication or cut-off of the central interface of valve body and circumferential interface is realized, control liquid medicine delivery passage. The inner diameter of all interfaces of multi-way valve is adapted to trace liquid medicine delivery pipeline, to avoid the problem of reducing diameter. The utility model also provides a kind of trace liquid medicine delivery system, including above-mentioned multi-way valve structure and related container and power execution device.

This utility model provides an organic fertilizer preparation device for vegetable planting, including a mixing box. The mixing box has an inlet on one side of its top and two outlets at its bottom. An inner wall of each outlet has a receiving groove containing a sealing component that cooperates with the outlet. A mixing motor is fixedly connected to the top center of the mixing box. This utility model has the following advantages: Through the design of the adjustment mechanism, when mixing the organic fertilizer, the rubber scraper on the side of the side rod can be driven away from the inner wall of the mixing box, avoiding repeated friction and wear between the rubber scraper and the inner wall of the mixing box during mixing. When it is necessary to scrape the organic fertilizer off the inner wall of the mixing box, the rubber scraper on the side of the side rod can be driven to abut against the inner wall of the mixing box, thus facilitating the scraping of the organic fertilizer off the inner wall of the mixing box when the side rod rotates.