32results about How to "Prevent flying phenomenon" patented technology

The invention discloses a dust collecting device for an electric tool, and belongs to the technical field of electric machines. The dust collecting device includes a dust collecting box, a dust collecting tube connected with the air inlet of the dust collecting box, and a first filter screen arranged at one end, far from the dust collecting tube, in the dust collecting box, the periphery of the first filter screen is abutted against the inner wall of the dust collecting box, and an air outlet is arranged at one end, correspondingly provided with the first filter screen, of the dust collecting box; the periphery of the tube orifice of one end, far from the dust collecting box, of the dust collecting tube, is connected with a dust shield, and a fan is arranged at one end, far from the first dust collecting tube, in the dust shield; an alarm is arranged outside the dust collecting box, a sensor and a chamber are arranged in the dust collecting box, the sensor is arranged at the upper portion of the dust collecting box and at one side, far from the air inlet, of the dust collecting box, and a controller connected with the alarm, the sensor and the fan is arranged in the chamber; and the dust collecting box is connected with an electric tool body. The dust collecting device can effectively prevent the dust flying phenomenon in the working process of the electric tool, and also can prevent the influences of excessive dusts in the dust collecting box on the dust collecting effect.

In an image forming apparatus provided with an organic photoreceptor; a developing device to bring a developing brush in contact with the organic photoreceptor so as to visualize an electrostatic latent image to toner image; a transfer device; and an agent supplying device to provide a surface energy lowering agent to the surface of the organic photoreceptor. The electrostatic latent image is visualized to the toner image while the developing sleeve is rotated in a direction counter to that of the organic photoreceptor at the developing section.

The invention discloses an electric drill capable of absorbing dust and reducing vibration and belongs to the technical field of electric machinery. The electric drill comprises a drill bit, a drill body, a handle and a dust absorption device which are connected with one another, and the dust absorption device is connected with the drill body. The dust absorption device comprises a dust collection box, a dust absorption pipe connected with an inlet of the dust collection box, a first filtering mesh and a pressure sensor, wherein the first filtering mesh is arranged in the dust collection box and is away from one end of the dust absorption pipe, and the pressure sensor is arranged on the outer surface of the dust absorption pipe; the end, away from the dust collection box, in the dust absorption pipe is provided with a draught fan for sucking dust, and the end, correspondingly provided with the first filtering mesh, of the dust collection box is provided with an outlet; the dust collection box is furthermore internally provided with a cavity with a flip cap, and the cavity is internally provided with a controller connected with the pressure sensor; and the drill body is furthermore internally provided with a vibration reduction mechanism. By means of the electric drill, the phenomenon of flying dust in the work process of the electric drill can be effectively prevented, the dust absorption device in the electric drill can also be controlled intelligently to move along a sliding rail, and thus the situation that the dust absorption pipe in the dust absorption device is excessively pressed by the wall or the ground and damaged is prevented.

The invention discloses a sound-insulating film-coated cotton, which comprises glass wool. The top surface and both sides of the glass wool along its length direction are covered with an upper plastic film and extend toward the bottom surface. There is a lower plastic film, and the lower plastic film is covered and connected to the upper plastic film; the two ends of the upper plastic film and the lower plastic film along the length direction are sealed by a hot-melt machine. The six sides of the glass wool of the present invention are covered with a layer of plastic film, which has a certain moisture-proof effect, and can prevent a large amount of cotton wool and cotton dust from flying and polluting the environment during use, and absorbs noise by using the holes on the plastic film.

The invention discloses a mining spiral feeding machine, which is composed of a fuselage, a vehicle frame and wheels. The fuselage is hinged on the frame, and the bottom of the frame is symmetrically equipped with wheels for advancing and retreating. The fuselage includes an explosion-proof motor, a batching mechanism, and a water spray device on the same slope. The explosion-proof motor is installed at the bottom of the fuselage. The explosion-proof motor is used to drive the cam vibrating screen mechanism and the stirring and conveying trough. The bottom of the batching mechanism is provided with a cam vibrating screen mechanism, and the bottom of the cam vibrating screen mechanism is provided with a stirring and conveying trough, and the batching mechanism is communicated with the stirring and conveying trough through the cam vibrating screen mechanism. The mining spiral feeder reduces the number of underground operators, saves material costs, reduces labor intensity, and improves the on-site operating environment. At the same time, the sprayed grouting material is also uniform, which improves the sprayed grouting quality.