8results about How to "Guarantee a clean environment" patented technology

The application discloses a kind of convex structure 3D printing method of inner cone parts, belong to 3D printing manufacturing technical field, it includes box, the base is placed in the bottom of the box, the outer side of the base is fixedly installed with portal frame, the first motor is installed in the base side, the fan that is used with the air suction pipe is installed in the working tank, the filter plate is installed in the first fixed block buckle;Through the extension head structure design to the inner wall of inner cone part main body, extension head itself has the effect of strengthening the overall structure support strength of part, the use amount of extension head and part inner wall part support can be greatly reduced when D printing, not only reduce the support material cost, but also can reduce subsequent support piece removal process, avoid to cause damage to extension head, part inner wall when removing support, further improve part forming quality and production efficiency, especially adapt to the precise printing demand of complex convex structure such as inner cone part inner wall extension head with structural strengthening function.

The utility model discloses a kind of thread rolling wheel cleaning devices, including workbench, the top of the workbench is provided with fixed assembly, the outside of the fixed assembly is provided with thread rolling wheel, the top of the workbench is provided with cleaning assembly, the fixed assembly includes vertical plate, the thread rolling wheel is sleeved in the outside of multiple fixed struts, the cleaning assembly includes intercommunication box, the intercommunication box is located above thread rolling wheel, the utility model relates to thread rolling wheel cleaning technical field;The thread rolling wheel cleaning device, by the adjustable structure of fixed assembly, with the linkage of screw rod, moving block and connecting rod, realize that fixed strut spacing is flexibly adjusted, can be firmly adapted to different size thread rolling wheel, without replacing fixed component, reduce equipment adaptation cost.Simultaneously servo motor drives thread rolling wheel rotation, cooperate with the precision flush of the spray head corresponding with groove one to one, compared with artificial cleaning, greatly improve cleaning efficiency and cleanliness, avoid impurity residue influence machining precision.

The utility model relates to the technical field of prilling towers, and discloses a prilling tower top material uniform dispersing and flow guiding structure which comprises a connecting shell, a second motor groove is fixedly connected to the top of the connecting shell, a second motor is fixedly connected to the inner wall of the second motor groove, and a third motor is fixedly connected to the inner wall of the second motor groove. A second rotating shaft is fixedly connected to the output end of the second motor, a first gear is fixedly connected to the bottom of the second rotating shaft, a second gear is connected to the outer wall of the first gear in a meshed mode, a plurality of second fixing plates are fixedly connected to the inner wall of the second gear, and scraping plates are fixedly connected to the outer walls of the second fixing plates; and a plurality of cross rods are fixedly connected to the outer wall of the scraping plate. According to the material dispersing device, the second fixing plate, the scraping plate, the cross rod and the connecting column are driven by starting the second motor and through linkage of the second rotating shaft, the first gear and the second gear, finally the dispersing plate is driven to rotate, and multi-angle and multi-direction flow guiding and dispersing of materials can be achieved.

This invention provides an integrated cleaning method and a multi-functional tubing string suitable for horizontal well casing. The method is performed using a multi-functional tubing string. The multi-functional tubing string includes, in sequence, a drill string or tubing, a gauge, a first debris recovery sub, a scraper, a second debris recovery sub, and a grinding shoe, drill bit, or milling tap. The scraper includes a scraper cylinder and scrapers; the scrapers do not rotate with the multi-functional tubing string. When the tubing string moves axially up and down, the scrapers rotate to clean the inner wall of the horizontal well casing. The scrapers are mounted on the scraper cylinder and include double rows of scrapers, arranged alternately in upper and lower rows. The first debris recovery sub primarily recovers metal debris settled in the upper part of the well casing, and the second debris recovery sub primarily recovers metal debris from the circulating fluid returning to the bottom of the well casing. The advantage of this invention is that it allows for cleaning operations on the casing of deep and ultra-deep wells, especially ultra-long horizontal wells, using a multi-functional tubing string.

The utility model relates to the technical field of frozen storage box, concretely is a kind of pressure equalizing device that can heat, including air inlet pipe, the surface of air inlet pipe is equipped with heating electric wire, and one end of air inlet pipe is provided with electric heating wire switch, and the surface of electric heating wire switch is fixedly connected with power cord, and the end of power cord away from electric heating wire switch is electrically connected with heating electric wire, the inner wall of air inlet pipe is fixedly connected with one-way valve, and the side of air inlet pipe is provided with switch sensor, the utility model, using the control scheme of novel electric heating pressure equalizing device, improve the accuracy, safety and convenience of electric heating, the combination of air inlet pipe and one-way valve, realize the function that can heat, improve the reliability of balance hole, so that frozen storage box can be opened and closed in short time, improve the convenience of user use.

The application belongs to the technical field of plasma, and provides a remote plasma generator, which comprises an ionization cavity, an ignition assembly, a magnetic core assembly and a heat dissipation assembly, and an air channel is formed in the ionization cavity; the ignition assembly is used for exciting and igniting the gas in the air channel to form plasma; the ignition assembly comprises a dielectric sheet, a sealing structure and an ignition structure, the dielectric sheet is attached to the ionization cavity, the sealing structure is arranged on the outside of the dielectric sheet, and the ignition structure is used for exciting and igniting the gas; the inner wall of the ionization cavity is formed with an anodic oxidation plating film; and the dielectric sheet is formed with an anodic oxidation plating film on the surface through an anodic oxidation process.In the application, the surface of the dielectric sheet is formed with an anodic oxidation plating film, the dielectric sheet acts as a dielectric material, the anodic oxidation plating film on the surface is closely attached to the anodic oxidation plating film in the ionization cavity, the contact surface stress is increased, the dielectric sheet is prevented from cracking, the gas corrosion caused by plasma bombardment is effectively reduced, and the service life is prolonged.

This utility model discloses a laminar flow bed air vent curtain device, including a laminar flow bed, a bed frame, and an air intake fan. A canopy frame is fixedly connected to the side of the bed frame, and a protective canopy is movably connected to the canopy frame. An air vent blocking component is detachably installed on the air intake fan. The air vent blocking component includes a fixed base, and two pipe clamps are fixedly connected to the fixed base. A protective cover for preventing the canopy from blocking the air intake of the air intake fan is detachably installed on the pipe clamps. With the above device, when the canopy is too long or may sag due to airflow, the auxiliary pulley on the fixed base cooperates with the pressure pulley on the side of the laminar flow bed. The torsion spring inside the pressure pulley clamps and fixes the folded canopy, preventing the canopy from being attracted by the airflow of the air intake fan and blocking the protective cover. This ensures unobstructed airflow to the air intake fan, maintains stable clean airflow in the laminar flow bed, and reduces the weakening of air purification effect and the risk of patient infection caused by the canopy blocking the air intake.

The utility model provides a cabinet ventilation door structure which comprises a door plate, the bottom end and the top end of the door plate are respectively provided with an air inlet and an air outlet, the air inlet and the air outlet are respectively provided with a plurality of inclined flow guide plates, and the door plate is provided with filter assemblies on the back sides of the flow guide plates; and a fan is detachably mounted at the air outlet and between the flow guide plate and the filter assembly. An air inlet and an air outlet in a door plate are matched with a flow guide plate to form a directional airflow channel, efficient air convection can be formed through the hot-pressing effect and active air supply of a fan, and compared with natural ventilation, the moisture and peculiar smell discharging efficiency is remarkably improved; the filter assemblies on the back sides of the air inlet and the air outlet can effectively intercept pollutants such as dust; the fan structure is detachably installed at the air outlet of the door plate, the defect that an independent fan occupies the internal space of the cabinet body is avoided, later maintenance and replacement are facilitated, meanwhile, the fan structure, the guide plate and the filter assembly are integrated on the door plate structure, and the integrated design of ventilation, filtration and a power assembly is achieved.