39results about How to "Avoid accidental falls" patented technology

The utility model provides a textile cloth cleaning device which comprises a suction box and a penetrating box transversely penetrating through the suction box, a mounting shaft located above the penetrating box is further arranged in the suction box, and a driver for driving the mounting shaft to rotate is arranged outside the suction box. A plurality of attachment rods extending from one end of the mounting shaft to the other end of the mounting shaft are further fixedly arranged on the periphery of the mounting shaft, an exhaust pipe is further fixedly connected to the suction box, an exhaust fan is connected to the tail end of the exhaust pipe, and when the exhaust fan runs, airflow in the suction box enters the exhaust pipe after passing through the attachment rods; an inlet and a guide outlet which are located outside the suction box are formed in the two ends of the penetrating box respectively, an air outlet and an air inlet which are located in the suction box and located in the top face and the bottom face of the penetrating box respectively are further formed in the penetrating box, and an air inlet is further formed in the bottom face of the suction box; a filter box is further arranged on the suction box, and a filter plate is further arranged in the filter box in a drawing mode. The textile fabric suction device solves the problem that in the prior art, in the suction process of textile fabric, warp and weft are likely to be disordered or sucked into an exhaust fan from the lower portion.

The utility model discloses an inspection well anti-falling grating which comprises a base and is characterized in that a boss is arranged on the base and is of a hollow structure, sliding grooves are formed in the boss in a circumferential array mode, sliding rods are installed in the sliding grooves in a sliding mode, and one end of each sliding rod extends out of the boss from the side wall of the boss; a mounting seat is rotationally mounted on the base, a grid is arranged on the mounting seat in a surrounding manner, and a locking screw is arranged on the mounting seat; a driving disc is connected to the mounting seat, an arc-shaped notch is formed in the driving disc, and a guide pin matched with the arc-shaped notch is arranged on the sliding rod; according to the utility model, rapid installation can be realized, and the use convenience is improved.

The utility model discloses a worm gear self-locking jack for testing and assembling a universal coupling, and relates to the technical field of jacks. A shell is arranged on the upper portion of a base, a worm gear is arranged at the bottom of an inner cavity of the shell, a sliding sleeve is arranged on the upper portion of the inner cavity of the shell, and a lifting screw which is coaxial with the sliding sleeve and is driven by the worm gear to rotate is arranged in the sliding sleeve. A nut which is in threaded fit with the lifting screw and drives the sliding sleeve to conduct lifting adjustment is arranged on a rod body of the lifting screw, and a limiting piece which can be rotationally adjusted towards the lifting screw is hinged to the inner wall of the sliding sleeve. A pushing mechanism used for pushing the upper end of the limiting piece to abut against the lifting screw and limiting and fixing the lifting screw falling accidentally is further arranged on the inner wall of the sliding sleeve, a worm meshed with the worm gear is arranged on one side of the lower portion of the shell, and a wireless control button used for wirelessly controlling the pushing mechanism is arranged on a worm body. According to the utility model, the lifting screw rod is automatically limited and locked, so that the accidental falling of the lifting screw rod after the self-locking failure is effectively prevented.