3results about How to "Guaranteed normal injection" patented technology

The invention belongs to the technical field of seedling cultivation, and particularly relates to an intelligent irrigation device for forest seedling cultivation, which comprises a cultivation box, a self-checking and upward-moving assembly is arranged in the cultivation box, and the self-checking and upward-moving assembly comprises a cultivation bin arranged in the cultivation box; along with evaporation of water in the culture bin, the culture bin can move upwards under the action of a balancing weight and saline water, water flow directly irrigates rootstocks of saplings through a connecting pipe, a control pipe, a slow flow pipe, an embedded pipe and a plurality of water seepage openings in the surface of the embedded pipe, the normal water requirement for growth of the saplings is guaranteed, quantitative water injection irrigation can be achieved, and the water quality of the saplings is improved. The phenomenon that the seedlings are dry, poor in development and even withered due to the fact that the seedlings cannot be irrigated in time is avoided, the tooth-shaped soil loosening cone loosens the surface layer of the culture soil, the phenomenon that the soil texture of the surface layer of the culture soil becomes hard after water of the surface layer of the culture soil is lost is avoided, and normal growth of the seedlings is guaranteed.

This utility model provides a rapid concrete repair device, relating to the technical field of bridge maintenance equipment. It includes: a frame with a machine stand mounted on it; a material storage box mounted on the machine stand; a pump body mounted on the machine stand, located in front of the material storage box; a motor mounted on the machine stand, located below the material storage box; and a rotating disc below the motor. Through the cooperation of a splined shaft and a first splined sleeve, the rotating disc drives a brush to rotate, thereby cleaning the concrete surface. Utilizing the elasticity of a compression spring, the brush can fully contact the concrete surface, effectively cleaning large particles of sand and soil within cracks. This prevents residual impurities from affecting the adhesion of subsequent repair materials, ensuring repair quality. This invention solves the problem in existing bridge concrete surface damage repair equipment where incomplete cleaning of large particles of sand and soil within concrete cracks leads to residual impurities affecting the adhesion of subsequent repair materials and reducing repair quality.

The application discloses an ultrasonic vibration and laser-assisted combined ceramic matrix composite material drilling device and belongs to the field of composite material processing.The device comprises a laser, a main shaft laser channel, a compressed air channel, an optical path adjusting device, an ultrasonic vibration device, a fixing device, a drill bit and the like, wherein the laser is used for emitting laser light, the laser light is incident to the optical path adjusting device through the main shaft laser channel, the optical path adjusting device and the fixing device ensure that two beams of laser light emitted after light splitting are always irradiated by a drill bit through hole on the drill bit, and the function of heating and softening workpiece material is realized; the ultrasonic vibration device makes the end of the drill bit output the main shaft rotation movement and simultaneously output a longitudinal-torsional composite ultrasonic vibration with a certain amplitude, realizes an intermittent contact cutting drilling mode, and reduces cutting force and torque; compressed air blows away cutting chips through the compressed air channel and the drill bit through hole on the drill bit; longitudinal-torsional composite ultrasonic vibration, laser-assisted processing and drilling are organically combined, the damage of the air outlet and inlet is reduced, and the processing quality is improved.