6results about How to "Improve the absorption effect" patented technology

The utility model discloses a kind of sponge city efficient permeation greenbelt planting structures, it includes: green grass layer, artificial backfill nutrient soil layer, non-woven geotextile, water-accumulating layer and original soil layer, water-accumulating layer, non-woven geotextile, artificial backfill nutrient soil layer and green grass layer are sequentially laid from bottom to top in the upper of original soil layer, first drainage pipeline is provided in original soil layer, a plurality of rootlet pipes are provided on first drainage pipeline, a plurality of rootlet pipes are arranged along the direction of first drainage pipeline, one end of rootlet pipe extends into water-accumulating layer, a plurality of first through holes are provided on rootlet pipe, overflow pipe is provided on first drainage pipeline, overflow pipe extends to green grass layer upwards, overflow hole is provided on first drainage pipeline, overflow hole bottom is connected with second drainage pipeline, second drainage pipeline is connected with water-collecting well, and sealing assembly is provided at overflow hole. The utility model can solve the problem of poor permeability of urban green space compared with prior art.

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.

The utility model discloses an environmental protection and energy saving type metal piece surface treatment device, including the dust absorption sleeve, the dust absorption sleeve inside is equipped with the annular dust inlet, two support plates are symmetrically installed to the dust absorption sleeve top, be provided with the polishing subassembly to the dust absorption sleeve inside, the dust absorption sleeve outside is installed with the dust absorption component that is connected with the dust absorption sleeve, the dust absorption sleeve outside is installed with the movable baffle for contacting the metal piece surface, a plurality of through slots are seted up to the movable baffle surface, the dust absorption sleeve outside is installed with the limit component that goes into the through slot. The utility model discloses in the polishing process, the dust absorption sleeve surrounds the polishing, and the dust inlet is opposite the polishing position, through starting the dust absorption component, makes the dust absorption sleeve produce the negative pressure, and then through the dust inlet suction produced the waste chip of polishing.

The application relates to the field of laser cutting, and particularly discloses a laser cutting device for automobile mudguards, which comprises a machine tool, a cross beam is slidably arranged on the machine tool, a cutting head is slidably and liftably arranged on the cross beam, a clamping piece for fixing a mudguard is arranged on the machine tool, an air suction pipe is arranged on the machine tool, a fan is arranged at the bottom of the machine tool, a threaded rod is rotatably arranged on the side wall of the cross beam, a fixing plate is threadedly connected to the threaded rod, the air suction pipe is arranged on the fixing plate, a synchronizing piece for driving the air suction pipe to move is arranged on the machine tool, and a lifting piece for lifting the air suction pipe is arranged on the machine tool. The application has the effects of strengthening the cooling effect on the cut mudguard, reducing the emission of toxic gas and smoke generated during cutting, and improving the safety of workers.

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.