7results about How to "Prevent overwatering" patented technology

This utility model discloses a root-sensing drip irrigation tape, belonging to the field of irrigation equipment. It includes a water guide pipe, with a drip irrigation plate fixedly connected to its lower end. Multiple fixed cylinders and multiple sprinkler heads are fixedly connected to the lower end of the drip irrigation plate, arranged in a staggered pattern. Multiple micro-holes are opened at the outer end of the fixed cylinders, and multiple water passage holes corresponding to the sprinkler heads are opened in the middle of the drip irrigation plate. Liquid-guiding cotton is placed inside the fixed cylinders and embedded in the lower end of the drip irrigation plate. Perforations are opened in the inner wall of the water passage holes, and a sealing gasket is slidably connected within the perforations. Sensing cotton is fixedly connected between the sealing gasket and the liquid-guiding cotton. This allows the sensing cotton to absorb water, causing it to expand and push the sealing gasket to block the water passage holes, preventing over-irrigation. When water is scarce, the sensing cotton contracts, causing the sealing gasket to retract and opening the water passage holes to replenish water. This allows for precise matching of the real-time water demand of the plant roots, reducing ineffective water consumption and significantly saving water resources.

The utility model provides a sprinkling irrigation device, comprising: a sprinkling irrigation pipe group comprising a water inlet pipe and a water spray pipe, the water inlet pipe being communicated with the water spray pipe; the adjusting assembly is connected with the water spraying pipe and used for adjusting the pitching angle of the water spraying pipe; the valve is arranged on the water inlet pipe or the water spraying pipe; and the controller is used for controlling the adjusting assembly and the valve, so that the pitching angle of the water spraying pipe is matched with the opening degree of the valve.

The utility model discloses a Korean pine seed seedling raising box with a humidity adjusting function, and relates to the technical field of Korean pine seed seedling raising. The Korean pine seed seedling raising box comprises a base, a seedling raising box body is arranged at the top of the base, a ventilation mechanism is arranged on the left side of the seedling raising box body, and a watering mechanism is arranged on the right side of the seedling raising box body; the Korean pine seed seedling raising box comprises a seedling raising box body, a lap joint plate is fixedly connected to the interior of the seedling raising box body, a storage box used for seedling raising is in lap joint with the lap joint plate, three soil humidity sensors are fixedly connected to the inner bottom of the seedling raising box body, and three insertion holes are formed in the bottom of the seedling raising box body. According to the Korean pine seedling growing box, accurate exchange of air in the seedling growing box is achieved, humidity of different areas is monitored in real time in cooperation with three soil humidity sensors, the ventilation intensity and the irrigation amount can be automatically adjusted, root rot caused by too high humidity or drought caused by too low humidity is effectively avoided, a stable and appropriate microenvironment is provided for Korean pine seeds, and the germination rate and the seedling robustness are remarkably improved.

The application discloses a seedling raising device for forestry, and belongs to the technical field of seedling raising devices. The seedling raising device for forestry comprises a bearing frame, two driving chains are installed on the bearing frame, a driving mechanism is installed on one side of the bearing frame, the driving mechanism is used for driving the driving chains to rotate, a plurality of supporting plates are fixedly installed on the two driving chains, a placing box is installed between the two supporting plates, lifting plates are fixedly installed on the two sides of the placing box, a plurality of seedling raising boxes are installed in the placing box, and an irrigation mechanism is installed above the bearing frame. The technical scheme of the application effectively solves the problems that a large amount of water is intercepted by leaves of seedlings in the upper layer of a traditional multilayer seedling raising device, and the lower layer receives insufficient water, and avoids the risks of water resource waste and seedling survival rate reduction.

This utility model relates to the field of water conservancy and irrigation technology, and in particular to a water conservancy irrigation device for water conservancy projects. Its technical solution includes: a rod with a limiting block at its top and a guide thread between the rod and the limiting block; a turntable rotatably mounted on the rod, with a connecting seat at its center inside the turntable, and teeth on the inner surface of the connecting seat that engage with the guide thread, achieving the lifting and lowering movement of the turntable through the meshing of the teeth and the guide thread; multiple nozzles arranged tangentially along the outer edge of the turntable, with the reaction force of the water flow from the nozzles driving the turntable to rotate; a rotating plate rotatable at the bottom of the connecting seat, with an inlet pipe connected to the rotating plate via a connector, the inlet pipe being connected to an external water source. This utility model expands the irrigation range, improves uniformity, efficiently utilizes water resources, and reduces irrigation costs by realizing the spiral lifting and self-rotation of the turntable.

This specification provides one or more embodiments of a root-oriented water-saving irrigation device, including a base frame, a drip irrigation assembly, and a limiting support assembly. The base frame is a cylindrical structure used to insert into the soil and control the directional growth of crop roots. The drip irrigation assembly includes two sets of drip irrigation frames symmetrically arranged on the top periphery of the base frame. Each drip irrigation frame is internally threaded with an irrigation rod. Grooves are provided on both sides of the irrigation rod, and a sponge is fixed within each groove, with PAM (a water-retaining agent) placed inside the sponge. This device is suitable for all greenhouse applications and has a wide range of applications. Specifically designed for plastic greenhouse planting, it incorporates a precipitation impact correction formula, which can accurately adjust irrigation water demand based on factors such as the greenhouse's closure status, ventilation opening, and external precipitation. It possesses self-learning (automatic adjustment) optimization capabilities, continuously improving irrigation accuracy. The device can use a fixed cycle as an iteration unit, providing actual crop growth data based on measured soil moisture content data within the cycle.

The utility model discloses an ecological greening structure for areas with less rainfall, which belongs to the technical field of ecological greening structures and comprises an anti-evaporation water tank, a permeable plate arranged on the anti-evaporation water tank, a soil carrying layer arranged on the permeable plate, and a planting layer arranged on the soil carrying layer. The roots of the plants sequentially penetrate through the planting layer, the soil carrying layer and the breathable plate to extend to the evaporation-preventing water tank, and a gravel layer is arranged on the planting layer. The anti-evaporation water tank is arranged at the bottom of the underground layer, the breathable plate is laid on the anti-evaporation water tank, the soil carrying layer is arranged on the breathable plate, the planting layer is arranged on the soil carrying layer, a plurality of plants are planted on the planting layer, and the roots of the plants extend into the water openings of the anti-evaporation water tank. Therefore, the roots of the plants can be in contact with the water source all the time, it can be guaranteed that water in the evaporation-preventing water tank cannot be evaporated, and the ecological greening degree is improved.