49results about How to "Not easy to trip" patented technology

The invention provides a yellowing system for viscose fiber production. The yellowing system comprises a yellowing machine, a discharging valve, a discharging pipeline and a pulverizer, wherein the yellowing machine, the discharging pipeline and the pulverizer are sequentially connected to one another, and the discharging valve is arranged between the yellowing machine and the discharging pipeline. The yellowing system is characterized in that the discharging pipeline is connected to a liquid inlet pipe; after yellowing reaction ends, dissolved alkali and primary dissolved water are added to the yellowing machine, after addition ends, the discharging valve is opened, meanwhile, secondary dissolved water is added to the discharging pipeline through the liquid inlet pipe, when discharging reaches above 90%, flushing alkali is added to the yellowing machine, and after flushing ends, the discharging valve is closed, and the pulverizer is stopped. The yellowing system has the advantages that the production cycle of the yellowing machine is effectively shortened, the capacity of the yellowing machine is improved, the operational stability of equipment is improved, the operating current of the equipment is reduced, and the energy consumption is reduced.

The invention discloses a clip-on insulating protective cover. The clip-on insulating protective cover comprises a sheet-shaped body, a buckle and a neck. The sheet-shaped body wraps a cable; the buckle is matched with the neck; one end of the sheet-shaped body is connected with the buckle, and the other end of the sheet-shaped body is connected with the neck; the buckle is in clearance fit with the neck; the opening of the neck and the bump of the buckle are arranged at the same side of the sheet-shaped body. The present invention provides the clip-on insulating protective cover. The clip-oninsulating protective cover is simple in structure, not easy to trip and resistant to drop and shock, can protect the normal work of the cable in the protective cover, and has a very good promotion value.

The invention discloses a method for fastening a member with high strength and low riveting force and a 10.9-level short-tail pulling rivet. The method comprises the following steps that: 1) the rivet consists of a rivet head, an unloading groove, a polished rod, a locking ring groove section, a threaded section and a tail thin short ring groove section; the radius of the inner curved surface of a locking groove is reduced from front to back; the angle of the inner inclined plane of the tail is reduced from front to back; a lantern ring is provided with a convex point, and a latch is arranged in an inner hole; 2) the rivet penetrates, the latch is screwed into the threaded section, and the lantern ring is hooked with the rivet; 3) the rivet extends into a riveting device, and a clamping jaw clamps the tail; 4) the riveting device is started, the lantern ring is extruded to deform to lock a ring groove, and the lantern ring moves forwards to break the convex point; and 5) the riveting device retreats, and fastening is finished. The unloading groove can eliminate stress concentration in riveting and use. The locking groove promotes metal flowing of the lantern ring during riveting and blocks metal flowing of the lantern ring in vibration or separation after riveting, so that fastening property and loosening resistance are improved. Due to the tail groove shape, the clamping jaw is engaged with the tail without releasing, and riveting with low riveting force is promoted. Due to the latch, the lantern ring is convenient to hook, install and operate. The rivet is applied to railway vehicles and heavy trucks with high requirements for fastening property and reliability.