6results about How to "Guaranteed normal injection" patented technology

The utility model discloses a cooling type plasma cleaning machine nozzle which comprises a base, a nozzle body and a nozzle body. The cover body is arranged above the base; the electrode plate is arranged in the mounting cavity, and a cooling medium circulating cavity is formed in the electrode plate; the first electrode connecting pipe penetrates through the cover body and penetrates into the electrode plate, and the first electrode connecting pipe is communicated with the cooling medium circulating cavity; and the second electrode connecting pipe penetrates through the cover body and penetrates into the electrode plate, and the second electrode connecting pipe is communicated with the cooling medium circulating cavity. According to the utility model, the cooling medium circulating cavity is arranged in the electrode plate, so that the cooling effect on the electrode plate is realized, the membrane deformation caused by over-high temperature when the membrane is cleaned by the spray head is prevented, and the use effect of the electrode plate is ensured; and gas circulates in the mounting cavity, so that the spraying and cleaning effects of the spray head of the plasma cleaning machine are ensured, and the cooling effect on the interior of the spray head is further improved.

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.

An interlayer pressure difference state water injection process pipe column comprises an oil pipe, a hydraulic self-locking oil drainage anchoring device is installed on the oil pipe, and a plurality of step-by-step layered plugging tools and bridge type concentric profile control tools are installed on the oil pipe and located below the hydraulic self-locking oil drainage anchoring device. The number of the step-by-step layered plugging tools and the number of the bridge type concentric profile control tools are equal, the step-by-step layered plugging tools and the bridge type concentric profile control tools are alternately arranged up and down, a sliding plugging anti-overflow check valve is installed at the lower end of an oil pipe, after water injection is stopped, the hydraulic self-locking oil drainage anchoring device is still kept in an anchoring state, a water injection process pipe column is prevented from moving up and down, and it is guaranteed that the bridge type concentric profile control tools inject water into corresponding stratums; and the step-by-step layering plugging tool still keeps a plugging state, mutual circulation of water between stratums is prevented, and it is guaranteed that the pressure between the stratums is balanced.

The present invention belongs to the technical field of burners, and in particular relates to a burner for mixed combustion of natural gas and hydrogen, comprising a fan, a shell, a fuel nozzle and an igniter, wherein the fuel nozzle is penetrated into the shell, and when the switch is closed, the direction of rotation is controlled to drive the pawl to drive the ratchet to rotate synchronously, so that the ratchet can be controlled to drive the internal rotating disk, and if the switch is turned on and then reversed, the pawl can be controlled to abut against the ratchet without driving the ratchet to rotate, and when the blades are opened, the ratchet will be driven by the thrust of the spring to reset and rotate together with the ratchet, the pawl and the rotating rod, and after the driving spring elastic force disappears, the rotating rod continues to rotate and will not drive the ratchet to rotate, and keeps rotating separately, and if the blades need to adjust the angle separately, switch two controls the motor one to rotate in the same direction as when it is turned on, and the blades can rotate 360 ​​degrees to ensure that the rotating rod only rotates in one direction when switch two is turned on, and the adjustment effect can still be achieved.

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.