Metal pipe vertical self-locking connecting device

• Main Author: DOU HAIJIE
• Format: Patent
• Language: Chinese; English
• Published: 18.08.2010
• Subjects: BLASTING; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

A metal pipe vertical self-locking connecting device belongs to the connecting point structures of metal pipe materials. The technical scheme of the metal pipe vertical self-locking connecting device are that a thin metal pipe is vertically arranged in a through hole of a thick metal pipe, the upper and lower walls of the thin metal pipe are provided with V-shaped projections which are clipped in the internal portions of the thick metal pipe, the thin metal pipe is connected with the thick metal pipe in one piece, and the length of the edge of the thin metal pipe is smaller than the difference between the length of the edge of the thick metal pipe and double thickness of the pipe wall. The metal pipe vertical self-locking connecting device has the advantages that the device is particularly suitable for the assembly of antitheft handrails, the structure is simple, the connection is firm, the operation is quite convenient, connecting points can be locked at a time, and the antitheft effect is excellent.