CN203477018U - Bolt component - Google Patents

Abstract

The utility model relates to a bolt component which comprises a bolt and a nut. The bolt comprises a head and a screw formed by an unthreaded section and a threaded section. The head of the bolt is circular. Protruding parts protruding outwards are respectively disposed on the opposite sides of the lower surface of the head of the bolt. The outer side of the nut is hexagonal. The inner diameter of the inner side of the nut equals to the outer diameter of the head of the bolt. The inner side of the nut is further provided with grooves matched with the protruding parts of the head of the bolt, and the bolt can be rotated by rotating the nut. The bolt component has the advantages that the bolt can only be indirectly rotated by rotating the corresponding nut, so that when the bolt is fastened, the bolt is difficult to be separated from a connecting through hole being acted by the bolt without the corresponding nut, good protection effect can be achieved, and the parts fastened by the bolt can be prevented from being stolen by lawbreakers.

Description

A kind of bolt assembly

Technical field

The utility model relates to a kind of fastening piece, is a kind of bolt assembly with being specifically related to.

Background technique

Bolt is one of a kind of common fastening piece, and it is for being fastenedly connected two with the part of through hole.It is all generally to take the head of bolt to realize bolt is screwed to site of action as site of action for the bolt of using at present in the process of use, otherwise reverse rotation bolt head just can easily spin off bolt from the through hole of connection.Wherein concerning those public use and parts that loss by theft rate is higher, while coming it fixedly with bolt, it is requiring to use bolt stationary device to one-time fix, and to prevent lawless person's pilferage, common used like this bolt just cannot meet above-mentioned requirement.

Model utility content

The utility model object is that a kind of bolt assembly is provided in order to overcome the deficiencies in the prior art.

For achieving the above object, the technical solution adopted in the utility model is: a kind of bolt assembly, comprise bolt and nut, and described bolt comprises head and the screw rod to downward-extension from head bottom surface; Described screw rod comprises the polished rod section that extends to form from head downwards, from described polished rod section, extends to form downwards and length is greater than the thread section of polished rod section; The head of described bolt is arranged to circle, and on the opposite side of its lower surface, is respectively arranged with outwards outstanding protuberance; The outer side surface of described nut is arranged to Hexagon, and the inner diameter of inner side surface equates with the outer diameter of bolt head; On the inner side surface of described nut, be also provided with groove, to match with the protuberance of bolt head, and then realize the effect that reaches rotating bolt by rotary nut.

Further, the outer side surface of described protuberance is arranged to circular-arc.

Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:

Bolt assembly described in the utility model is in the process of using, because the head of bolt is arranged to be provided with the round structure of protuberance, such bolt is in the process that it is screwed, can only borrow group in nut corresponding thereto as switching thing, indirectly bolt is carried out to screw action, such bolt be not difficult to again it is being departed from and come from the connecting through hole of effect by corresponding nut after fastening getting well, can play good protective action, to prevent the parts of its fastening effect to be stolen by lawless person; What between bolt and nut, its outer surface of interactional protuberance was circular arc simultaneously, further improved the difficulty of when not by nut, bolt being rotated.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:

The exploded view that accompanying drawing 1 is bolt assembly described in the utility model;

Wherein: 1, bolt; 2, nut; 3, head; 4, screw rod; 5, protuberance; 6, groove.

embodiment

Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.

Accompanying drawing 1 is a kind of bolt assembly described in the utility model, comprises bolt 1 and nut 2, and described bolt 1 comprises head 3 and the screw rod 4 to downward-extension from head 3 bottom surfaces; Described screw rod 4 comprises the polished rod section that extends to form from head 3 downwards, from described polished rod section, extends to form downwards and length is greater than the thread section of polished rod section; The head 3 of described bolt 1 is arranged to circle, and on the opposite side of its lower surface, is respectively arranged with outwards outstanding protuberance 5; The outer side surface of described nut 2 is arranged to Hexagon, and the inner diameter of inner side surface equates with the outer diameter of bolt 1 head 3; On the inner side surface of described nut 2, be also provided with groove 6, to match with the protuberance 5 of bolt 1 head 3, and then realize the effect that reaches rotating bolt 1 by rotary nut 2.

The outer side surface of wherein said protuberance 5 is arranged to circular-arc.

Bolt assembly described in the utility model is in the process of using, because the head 3 of bolt 1 is arranged to be provided with the round structure of protuberance 5, such bolt 1 is in the process that it is screwed, can only borrow group in nut 2 conduct switching things corresponding thereto, and by coordinating indirectly between groove 6 and protuberance 5, bolt 1 is carried out to screw action, such bolt 1 be not difficult to again it is being departed from and come from the connecting through hole of effect by corresponding nut 2 after fastening getting well, can play good protective action, to prevent the parts of its fastening effect, by lawless person, stolen, what between bolt 1 and nut 2, interactional protuberance 5 its outer surfaces were circular arc simultaneously, further improved the difficulty of when not by nut 2, bolt 1 being rotated.

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

Claims (2)

1. a bolt assembly, comprises bolt and nut, and described bolt comprises head and the screw rod to downward-extension from head bottom surface; Described screw rod comprises the polished rod section that extends to form from head downwards, from described polished rod section, extends to form downwards and length is greater than the thread section of polished rod section; It is characterized in that: the head of described bolt is arranged to circle, and on the opposite side of its lower surface, be respectively arranged with outwards outstanding protuberance; The outer side surface of described nut is arranged to Hexagon, and the inner diameter of inner side surface equates with the outer diameter of bolt head; On the inner side surface of described nut, be also provided with groove, to match with the protuberance of bolt head, and then realize the effect that reaches rotating bolt by rotary nut.

2. bolt assembly according to claim 1, is characterized in that: the outer side surface of described protuberance is arranged to circular-arc.