4results about How to "Prevent disease" patented technology

This application relates to a tunnel invert drainage system, comprising a longitudinal blind pipe at the tunnel bottom, a vertical blind pipe at the tunnel bottom, a circumferential blind pipe, a drainage layer, precast no-fines concrete blocks, a waterproof membrane, a transverse blind pipe, a back-adhesive waterstop, a centrally embedded waterstop, and a galvanized steel plate waterstop. The drainage layer includes self-adhesive fabric, a drainage membrane, and geotextile layered sequentially on the initial support surface; precast no-fines concrete blocks are placed on the longitudinal blind pipes of the low sidewall; the waterproof membrane wraps around the longitudinal blind pipes of the low sidewall and the precast no-fines concrete blocks; the transverse blind pipes are located on both sides of the circumferential construction joint, with drainage holes on both sides of the construction joint, the drainage holes communicating with the transverse blind pipes and the longitudinal blind pipes of the low sidewall; the back-adhesive waterstop is adhesively bonded to the waterproof membrane; the galvanized steel plate waterstop is fixed at the construction joint and adhesively bonded to the centrally embedded waterstop. This tunnel invert drainage system enables effective collection and efficient discharge of groundwater, thereby effectively reducing water pressure at the bottom of the invert.

The utility model relates to drip irrigation device technical field, concretely just is a farmland drip irrigation spraying device. Including bottom drip irrigation part and upper drip irrigation part, the bottom drip irrigation part includes the support plate of vertical setting, the both ends of support plate are detachably connected, and when the both ends of support plate are connected, the annular drip irrigation seat is formed, the upper drip irrigation part includes the first telescopic link of vertical setting, the upper end of first telescopic link is equipped with top drip irrigation subassembly, the lower part of first telescopic link is equipped with middle drip irrigation subassembly, middle drip irrigation subassembly with drip irrigation seat coaxial heart setting, top drip irrigation subassembly is used for carrying out drip irrigation to crop's leaf, middle drip irrigation subassembly is used for carrying out drip irrigation to crop root. Satisfy the water demand characteristics of different growth stages of crops, improve water and nutrient utilization efficiency, form multidirectional drip irrigation network, reduce water resource waste, avoid the disease caused by the excessive wetness of leaf simultaneously.

This utility model relates to the technical field of electric bed frame devices, specifically an electric bed frame with a rotating bed surface function, comprising: a bed surface assembly; a bed surface frame assembly, on which a turntable assembly and a drive assembly are provided, the drive assembly causing the turntable assembly to rotate; and a backrest and leg-raising assembly, on which the turntable assembly is provided, allowing the bed surface assembly to be in either a backrest or leg-raising position. The bed surface assembly includes a backrest board, a lumbar support board, a hiprest board, a thigh board, an upper leg board, and a lower leg board, which are sequentially distributed from one side to the other and are hinged to each other sequentially from one side to the other. This device allows an elderly person in a sitting position to rotate to the side of the bed, thus facilitating their getting out of bed.

The utility model relates to the technical field of seedling raising, and disclose an electronic seedling raising box for forestry, including box, a plurality of drip irrigation mechanism are fixedly installed in the box, the drip irrigation mechanism includes water pump, water pump and box fixed connection, the water outlet of water pump and shunt pipe fixed communication, the shunt pipe fixedly is equipped on the box, a plurality of flow guide pipes are fixedly communicated in the shunt pipe, a plurality of drippers are fixedly communicated below the flow guide pipe, a plurality of plug -in humidity sensors are fixedly installed in the box, and the soil in the seedling raising groove is detected to humidity through plug -in humidity sensor, when humidity is below a certain value, water pump will start, and water is passed into the flow guide pipe from the shunt pipe, finally from the dripper drop to the soil in the seedling raising groove, until the soil humidity reaches the suitable value, and the drip irrigation mechanism and plug -in humidity sensor are installed on the seedling board top of each group, to guarantee the accurate water supply to the seedling on each seedling board.