A kind of anti-theft nut
Technical field
The utility model relates to a kind of tightening nut, specifically relates to a kind of anti-theft nut.
Background technique
Anti-theft nut is mainly for the protection of the antitheft effect of device on high voltage overhead circuit steel tower; existing anti-theft nut is common nut, and screw place is provided with groove, and the structure of steel ball is installed in groove; the anti-theft nut of this spline structure exists anti-theft effect poor, the shortcoming that inner steel ball easily drops.
Summary of the invention
The purpose of this utility model is exactly for above-mentioned shortcoming, provides one to have nut and easily processes, good anti-theft effect, anti-theft nut easy to use.
The purpose of this utility model is achieved in that a kind of anti-theft nut, comprise nut body, it is characterized in that: described nut body is cylindrical, top is provided with protruding round platform, bottom is provided with prismatic structure, centre is provided with mounting hole, described round platform top is provided with the binding groove for tightening nut, in described mounting hole, be provided with screw, described screw place is provided with groove, in described groove, spring is installed, described spring end is provided with steel ball, and described spring and steel ball are arranged in groove by butter.
Further say: described binding groove is positioned at round platform top, and binding groove is wedge-shaped structure, play can only be fastening effect, described binding groove is provided with 2-6, described prismatic structure is 2-6 prismatic.
Adding man-hour, only need by the prismatic structure of nut body below, be placed on corresponding fixture, process, in use, can pass through special tool, be stuck in the binding groove of nut body top, nut is arranged on corresponding screw mandrel, utilize steel ball and the spring of nut body inside, make the nut can only be fastening, cannot removal, thus play anti-theft function.
The beneficial effects of the utility model are: a kind of anti-theft nut of this spline structure has nut easily to be processed, good anti-theft effect, advantage easy to use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1, nut body 2, round platform 3, prismatic structure 4, mounting hole 5, binding groove 6, screw 7, groove 8, spring 9, steel ball.
Embodiment
Below in conjunction with accompanying drawing, the utility model will be further described.
As shown in Figure 1, a kind of anti-theft nut, comprise nut body 1, it is characterized in that: described nut body 1 is cylindrical, top is provided with protruding round platform 2, bottom is provided with prismatic structure 3, centre is provided with mounting hole 4, described round platform 2 tops are provided with the binding groove 5 for tightening nut, in described mounting hole 4, be provided with screw 6, described screw 6 places are provided with groove 7, in described groove 7, spring 8 are installed, described spring 8 ends are provided with steel ball 9, and described spring 8 and steel ball 9 are arranged in groove 7 by butter.
Further say: described binding groove 5 is positioned at round platform 2 tops, and binding groove 5 is wedge-shaped structure, play can only be fastening effect, described binding groove 5 is provided with 2-6, described prismatic structure 3 is 2-6 prismatic.
Adding man-hour, only need by the prismatic structure 3 of nut body 1 below, be placed on corresponding fixture, process, in use, can pass through special tool, be stuck in the binding groove 5 of nut body top, nut is arranged on corresponding screw mandrel, utilize steel ball 9 and the spring 8 of nut body 1 inside, make the nut can only be fastening, cannot removal, thus play anti-theft function.
A kind of anti-theft nut of this spline structure has nut easily to be processed, good anti-theft effect, advantage easy to use.