3results about How to "Realize function conversion" patented technology

The utility model provides an air volume adjusting device for a mine roadway. The air volume adjusting device comprises an air bag module, an inflation module, a fixing module, a master control module and a sensor module. The airbag module is formed by splicing a plurality of airbags; the inflating module is used for inflating and deflating the air bag; the fixing module comprises a first stand column, a second stand column, an upper guide rail, a lower guide rail and guide wheels. The left and right sides of the airbag module are respectively fixed with the first upright and the second upright to form an air door; the upper and lower sides of the airbag module are respectively fixed with the upper and lower guide rails; the upper and lower ends of the first upright post are fixed with the left side of the guide rail; guide wheels are arranged at the upper end and the lower end of the second stand column and can drive the second stand column to move left and right along the guide rails so as to drive the air door to open or close and achieve roadway ventilation and closing. Ventilation adjustment can be conducted on the mine roadway, and the roadway can be effectively closed.

The invention provides a flexible detection device and method for the direction of a drainage hole of a sliding rail sleeve. The device comprises a base, a transparent cover, a driving assembly, a rotating table, a loading and unloading assembly and a plug. The transparent cover is connected to the base and is provided with at least one tolerance ring pattern; the driving assembly is mounted on the base; the rotating table is connected to the output end of the driving assembly, and a plurality of loading and unloading assemblies are arranged on the rotating table in the circumferential direction; the plug is in threaded connection with the drain hole and provided with a laser pen, and the axis of the laser pen coincides with the axis of the drain hole. According to the invention, the plug with the laser pen is mounted in the drain pipe joint of the slide rail sleeve, so that visible laser indicating light replaces invisible drain hole pointing, and whether the drain hole pointing of the slide rail sleeve is qualified or out-of-tolerance degree is visually and quantitatively confirmed by combining a calibrated tolerance ring pattern of the drain hole pointing on the transparent cover; compared with an existing qualitative evaluation method of manual operation, the method is smaller in detection error and higher in efficiency.

This invention discloses a foldable and extendable prefabricated partition wall that can be converted to a modular design, comprising at least one second partition unit (20); the second partition unit (20) includes a first partition door (21), a second partition door (22), two third steel columns (23), a third wall panel (24), a fourth wall panel (25), two fourth steel columns (26), a fifth steel column (27), and two second rotating shafts (28). One end of the first partition door and one end of the second partition door are rotatably connected to the third steel columns, and the other ends of the first partition door and the second partition door are movably connected to one end of the third wall panel and one end of the fourth wall panel, respectively; the two fourth steel columns are fixed to the other ends of the third wall panel and the other ends of the fourth wall panel, respectively; the second rotating shafts are respectively set on the two third steel columns, the first partition door and the second partition door have the same size, and the third wall panel and the fourth wall panel have the same size.