Locking mechanism

Abstract

A locking device comprises a groove-shaped pedestal, a taper pin, a loosening and fastening mechanism, a pin hole arranged at the same side of a cylindrical body and a sleeve, a baffle, and a gasket. Two internal side ends in the groove are inclined planes, and taper holes are arranged symmetrically in the middle positions of the two sides of the groove. A thin axial end of the taper pin is rectangular. The loosening and fastening mechanism consists of a fixing screw and a rotating screw. The fixing screw is fit into a cylindrical body of the taper pin. One end of a plane of the fixing screw is fixed on the pedestal, while the other end is provided with a gradual protruding block. A rotating handle is fixed on the closed end surface of the rotating screw, and a gradual protruding block at the opening end of the rotating screw. The gradual protruding block of the rotating screw match the gradual protruding block of the fixing screw, and the two blocks are fit into the cylindrical body of the taper pin. A pin goes through the pinhole to fix the sleeve on the cylindrical body. The center of the baffle is equipped with a square hole, which is fit for the thin axial end. The center of the gasket is equipped with a round hole. The taper pin is inserted and arranged into the taper holes of the pedestal. After the baffle is fit into the thin axial end, a spring is fit into the thin axial end too. The gasket is fixed on the end surface of the thin axial end with a bolt to produce the axial pretightening force to the taper pin.

Description

technical field [0001] The invention relates to a locking mechanism that can reliably lock free objects and is easy to unlock, in particular, a locking mechanism that can withstand vibration and impact in harsh dynamic environments. Background technique [0002] At present, the locking mechanism for limiting and locking a free object mostly adopts the locking method of clamping the object or fastening it with screws. Among these locking methods, the former cannot fully control the degree of freedom of the object. The clamping force is limited or requires a large clamping force, and the structure is complex and the ability to withstand harsh vibration environments is poor; the latter is more reliable in fastening, but it is more troublesome to remove. In addition, the existing application of the cone surface and the wedge surface is to use the principle of self-locking after the interference fit to limit or fasten the object, but the matching surface is not easy to separate a...

AI Technical Summary

Problems solved by technology

[0002] At present, the locking mechanism for limiting and locking a free object mostly adopts the locking method of clamping the object or fastening it with screws. Among these locking methods, the former cannot fully control the degree of freedom of the object. The clamping force is limited or requires a large clamping force, and the structure is complex and the ability to withstand harsh vibration environments is poor; the latter is more reliable in fastening, but it is more troublesome to remove

In addition, the existing application of the cone surface and the wedge surface is to use the principle of self-locking after the interference fit to limit or fasten the object, but the matching surface is not easy to separate after the wedge is tightened, and special tools must be used. Separation, removal is more troublesome

Images