3results about How to "Improve the absorption effect" patented technology

The utility model discloses a smoke dust adsorption device for circuit welding of communication products, which belongs to the technical field of circuit board welding and comprises a processing table. The device further comprises a filtering assembly, the filtering assembly comprises a filtering box, a draught fan is installed on one side of the filtering box, the other side of the filtering box is fixedly connected with one end of a communicating hose, the other end of the communicating hose is connected to a communicating connector in a sleeved mode, and the communicating connector communicates with one end of a gooseneck pipe. The other end of the gooseneck pipe is provided with a dust collection cover through a mounting seat; the adjusting groove, the adjusting block, the gooseneck pipe and other structures are arranged to be used in cooperation, the structure is simple, convenience and practicability are achieved, the angle and position of the dust collection cover can be adjusted, and therefore the dust collection cover can be conveniently moved to an accessory at the position where smoke dust is generated during welding, the requirement for suction force of a draught fan is relatively low, generated noise is also low, and the welding quality is improved. In addition, the energy consumption is reduced, and meanwhile, the smoke dust suction effect is improved.

This invention provides a prosthesis removal device for knee replacement revision surgery based on a high-frequency electrosurgical unit, belonging to the field of medical device technology. It includes a high-frequency electrosurgical pen tip, with a high-frequency electrosurgical pen body fixedly connected to the top of the tip. A connecting plate is located at the top of the pen body, and a first negative pressure tube is mounted on the connecting plate, passing through it. A fixing cap is threadedly connected to the top of the pen body, movably sleeved with the first negative pressure tube, and positioned at the top of the pen body and fitting against the connecting plate. The bottom end of the first negative pressure tube extends to the outside of the bottom end of the pen body, and a suction component is located at the lower end of the tube. This invention uses the high-frequency electrosurgical pen tip to heat and melt the bone cement in the prosthesis, reducing the difficulty of removing the main bone from the prosthesis and lowering the requirements for operator experience and skill. The suction component absorbs the melted bone cement.

The utility model relates to the field of laboratory equipment, and discloses a laboratory fume hood exhaust duct, which comprises a laboratory fume hood mounting part, an exhaust duct and a ventilation duct, the adjusting and maintaining mechanism comprises a hydraulic cylinder, a push plate, an exhaust pipe, an exhaust hood, a box body, an air bag, an abutting block, a guide pipe, a piston piece, a bottom plate and a vertical plate. The hydraulic cylinder is fixedly installed at the bottom of the laboratory fume hood installation part, a hydraulic rod of the hydraulic cylinder is fixedly connected with the push plate, the exhaust pipe is fixedly connected with the push plate, the exhaust hood is fixedly connected with the exhaust pipe, the box body is fixedly installed on the exhaust hood, and the air bag is fixedly installed on the inner wall of one side of the box body. The smoke exhaust device has the following advantages and effects that when a large amount of smoke is generated by an experimental object, the exhaust hood can be quickly moved downwards to be close to the smoke position, so that the smoke suction capacity is enhanced, smoke pollutants are discharged in time, and the filter plate and the activated carbon plate are extremely convenient to maintain.