CN202612341U - Lock nut - Google Patents

Abstract

The utility model relates to a lock nut which comprises a nut body. A threaded hole is installed in the center of the nut body, a groove is installed on the axial inner wall of the threaded hole, one end of the groove is tangent to the threaded hole, and a clamping groove is installed inside the groove. According to the lock nut, the groove is installed on the axial inner wall of the threaded hole, one end of the groove is tangent to the threaded hole, so that after the lock nut is screwed up on a bolt, a steel wire is inserted into the groove, and the lock nut can only be rotated clockwise. When the lock nut is rotated counterclockwise, the steel wire is brought out from the groove, friction force of counterclockwise motion of the lock nut is enlarged, and the lock nut is prevented from being loosened. The clamping groove is installed inside the groove, and oblique splinters on the steel wire can be clamped inside the clamping groove, so that the steel wire is prevented from coming off from the groove to affect the locking function of the lock nut.

Description

A kind of locking nut

Technical field

The utility model relates to a kind of improvement of nut structure, especially relates to a kind of locking nut that prevents nut loosening that has, and belongs to the securing means technical field.

Background technique

In the existing technology, two fasteners are realized the fixing of two fasteners through bolt, nut, pad also together usually; This means of fixation relatively is fit to state of rest, if, when two fasteners are in vibrational state, then can be owing to the effect of vibration, loosening the coming that nut can be slowly causes two fasteners to break away from tightening states, causes security incident.

Summary of the invention

The utility model purpose is for the deficiency that overcomes existing technology a kind of locking nut that prevents nut loosening that has to be provided.

For achieving the above object, the technological scheme that the utility model adopts is: a kind of locking nut comprises nut body; The center of said nut body has been located at tapped hole; The axial inwall of said tapped hole is provided with groove; One end and the tapped hole of said groove are tangent; Be provided with draw-in groove in the said groove.

The beneficial effect of the utility model is mainly reflected in: the described locking nut of the utility model; The axial inwall of tapped hole is provided with groove; One end and the tapped hole of said groove are tangent; When nut be screwed in tighten on the bolt after, insert a steel wire in the groove, nut can only be turned clockwise; And when nut was rotated counterclockwise, steel wire can be taken out of from groove, increased the nut frictional force of motion counterclockwise, reached to stop the loosening of nut; Be provided with draw-in groove in the said groove, can the diagonal stabbing on the steel wire be stuck in the draw-in groove, can prevent that steel wire from deviating from from groove, thereby influence the locking function of locking nut.

Description of drawings

Below in conjunction with accompanying drawing the utility model technological scheme is described further:

Accompanying drawing 1 is the plan view of the described locking nut of the utility model;

Accompanying drawing 2 is the sectional view of the described locking nut of the utility model;

Accompanying drawing 3 is the described locking nut application state of a utility model schematic representation;

Wherein: 1, first fastener; 2, second fastener; 3, bolt; 4, locking nut; 5, pad; 6, nut body; 7, tapped hole; 8, steel wire; 9, diagonal stabbing; 10, groove; 11, draw-in groove.

Embodiment

Like accompanying drawing 1, the described a kind of locking nut 4 of the utility model shown in 2, comprise nut body 6; The center of said nut body 6 has been located at tapped hole 7; The axial inwall of said tapped hole 7 is provided with groove 10; One end and the tapped hole 7 of said groove 10 are tangent; Be provided with draw-in groove 11 in the said groove 10.

Be depicted as the described locking nut application state of the utility model schematic representation like accompanying drawing 3; Said first fastener 1 is arranged on second fastener 2; Said bolt 3 passes second fastener 2, first fastener 1; Said pad 5 passes the upper surface that bolt 3 is arranged on first fastener 2; Said locking nut 4 screw threads are fixed on the bolt 3, and compress gasket 5; A steel wire 8 inserts in the groove 10; Locking nut 4 can only be turned clockwise; And when locking nut 4 was rotated counterclockwise, steel wire 8 can be taken out of from groove 10, increased locking nut 4 frictional force of motion counterclockwise, reached to stop the loosening of locking nut 4; Be provided with draw-in groove 11 in the said groove 10, can the diagonal stabbing on the steel wire 89 be stuck in the draw-in groove 11, can prevent that steel wire 8 from deviating from from groove 10, thereby influence the locking function of locking nut 4.

Below only be the concrete exemplary applications of the utility model, the protection domain of the utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technological scheme of formation, all drop within the utility model rights protection scope.

Claims (1)

1. a locking nut comprises nut body; The center of said nut body is provided with tapped hole; It is characterized in that: the axial inwall of said tapped hole is provided with groove; One end and the tapped hole of said groove are tangent; Be provided with draw-in groove in the said groove.

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