3results about How to "Avoid deformities" patented technology

This invention relates to the field of lightning protection technology for high-voltage transmission lines in power systems, specifically to a non-following current multi-stage gap lightning protection device and overvoltage protection method. The device includes multiple multi-stage gap bodies, a high-voltage fixing component, and a low-voltage fixing component. The two ends of each multi-stage gap body are connected to the high-voltage and low-voltage fixing components, respectively. Each multi-stage gap body includes multiple transverse electrodes. These transverse electrodes all point towards the space enclosed by the multiple multi-stage gap bodies and are arranged transversely at intervals in the longitudinal space, forming multi-stage discharge gaps between adjacent transverse electrodes. The high-voltage and low-voltage fixing components are respectively equipped with high-voltage and low-voltage electrodes. This invention employs a split-type distributed structure. The ingenious arrangement of multiple transverse electrodes forms exposed multi-stage discharge gaps, which can quickly guide the movement of the electric arc. The flashover path has stable and reliable discharge performance, effectively dissipating lightning energy and protecting the safety of the distribution network lines.

The application provides a integrated groove frame for shallow direction cultivation of Dioscorea alata L., and belongs to the technical field of yam planting. The device comprises a rectangular groove, a U-shaped groove and a vine traction pipe. The U-shaped groove is arranged in the rectangular groove and has a strip shape for guiding the directional growth of Dioscorea alata L. The vine traction pipe is arranged at the top of the rectangular groove and has an arc shape arranged at the top end and the end of the rectangular groove. The vine traction pipe is used for directional traction of the vines of Dioscorea alata L. The depth of the rectangular groove ranges from 25 cm to 30 cm. The groove frame has a depth ranging from 25 cm to 30 cm, which reduces the dependence of planting on the thickness of the soil layer. The vine traction pipe forms a continuous vine climbing path. After the vines of Dioscorea alata L. grow, the vines are guided to climb on the vine traction pipe, so that the vine leaves are uniformly distributed and mutual shading is avoided. The efficiency of vine photosynthesis is optimized, and the vines are prevented from lodging. When harvesting, the U-shaped groove is directly taken out, large-area soil turning is avoided, the damage to tubers and the destruction of soil structure are reduced, and the integrity of harvesting is improved.

This utility model relates to the field of agricultural engineering technology and discloses a seedling cultivation device for Chinese herbal medicines. It includes a base plate, a square box fixedly connected to the top of the base plate, a cylinder fixedly connected to the right side of the inner wall of the square box, a slider fixedly connected to the driving end of the cylinder, a limit block fixedly connected to the top of the slider, two limit plates fixedly connected to the inner wall of the base plate, and a connecting rod slidably connected to the adjacent side of each of the two limit plates. A fixing plate is fixedly connected to the outer wall of the connecting rod. This utility model facilitates the integration of manual operation and mechanization, reducing labor intensity. It can also be efficiently integrated with transplanters and sprinkler irrigation equipment, reducing labor costs. Combined with temperature and humidity sensors, it can achieve automated environmental control, reducing energy consumption and pest and disease risks, providing strong support for the standardized and large-scale seedling cultivation of Chinese herbal medicines.