CN212131016U

CN212131016U - Anti-loosening fastening device for bolt

Info

Publication number: CN212131016U
Application number: CN201921459732.1U
Authority: CN
Inventors: 景寅龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-12-11
Anticipated expiration: 2029-09-03

Abstract

The utility model discloses a locking fastener of bolt, including the main bolt, the upper end surface of main bolt is provided with the main nut, the lower extreme of main bolt is provided with built-in components of a whole that can function independently bolt, the upper end middle part surface of built-in components of a whole that can function independently bolt is provided with well core rod, the top of built-in components of a whole that can function independently bolt is provided with inferior nut, the upper end of main bolt is provided with the protection casing, the upper end surface of protection casing is provided with the protective cover, the surface all around of protection casing all is provided with horizontal. A locking fastener of bolt, be equipped with protection casing, horizontal restriction screw, vertical lock dead screw and built-in components of a whole that can function independently bolt, can effectively reduce the probability that drops because of the corrosion to can promote traditional protective structure's fastening anticreep effect better, can also promote bolt self's anticreep effect better, bring better use prospect.

Description

Anti-loosening fastening device for bolt

Technical Field

The utility model relates to a bolt field, in particular to locking fastener of bolt.

Background

The bolt is a mechanical part, a cylindrical threaded fastener matched with a nut, a fastener composed of a head part and a screw (a cylinder with an external thread) needs to be matched with the nut and is used for fastening and connecting two parts with through holes, and the bolt can loosen or even fall off due to vibration influence during use, so that the traditional bolt needs to be loosened and fastened; the locking fastener of bolt that has now has certain drawback when using, at first, traditional fastener does not possess protective effect effectively, and secondly, simple protective structure can't play good fixed action to the bolt, and still, the structure singleness of traditional bolt for holistic anticreep effect is not high, and the use of giving people has brought certain adverse effect, for this reason, we provide a locking fastener of bolt.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a locking fastener of bolt can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a locking fastener of bolt, includes the main bolt, the upper end surface of main bolt is provided with main nut, the lower extreme of main bolt is provided with built-in components of a whole that can function independently bolt, the upper end middle part surface of built-in components of a whole that can function independently bolt is provided with well core rod, the top of built-in components of a whole that can function independently bolt is provided with the time nut, the upper end of main bolt is provided with the protection casing, the upper end surface of protection casing is provided with the protective cover, the surface all around of protection casing all is provided with horizontal restriction screw, the lower extreme surface all.

The types of the main bolt and the built-in split bolt can be made according to actual requirements.

Preferably, be provided with the screw hole No. one between horizontal restriction screw and the protection casing, the surface of horizontal restriction screw passes through the surface swing joint of a screw hole and protection casing, be provided with the screw hole No. two between vertical dead lock screw and the protection casing, the surface of vertical dead lock screw passes through the surface swing joint of screw hole No. two and protection casing.

Preferably, the outer surface of the upper end of the secondary nut is provided with an opposite-shaped groove, and the outer surface of the lower end of the secondary nut is fixedly connected with the outer surface of the upper end of the built-in split bolt through a central rod.

Preferably, be provided with the rotatory screw thread that coincide between protective cover and the protection casing, the outer wall of protective cover is through the internal surface swing joint of rotatory screw thread and protection casing that coincide.

Preferably, the outer surface of the lower end of the protective cover is provided with a rubber ring.

Preferably, the outer surfaces of the main nut and the protective cover are both provided with anti-skid threads.

Compared with the prior art, the utility model discloses following beneficial effect has: this locking fastener of bolt, protection casing through setting up, can play the protective effect effectively at the position that the bolt twists, thereby reduce the probability that drops because of the corrosion, certain facility has, horizontal restriction screw and vertical lock screw through setting up, can be on traditional protective structure's basis, effectively promote the fastening anticreep effect to the bolt, be favorable to people's use, the setting of built-in components of a whole that can function independently bolt, can make the anticreep fastening effect of whole bolt more ideal, whole locking fastener of bolt simple structure, high durability and convenient operation, the effect of use is better for traditional mode.

Drawings

Fig. 1 is the utility model relates to an overall structure schematic diagram of bolt locking fastener.

Fig. 2 is the structural schematic diagram of the horizontal limiting screw 2 and the vertical dead-locking screw 3 in fig. 1 of the anti-loose bolt fastening device of the present invention.

Fig. 3 is a schematic structural view of the bolt anti-loosening fastening device of the present invention, in which a split bolt 9 is arranged in fig. 1.

Fig. 4 is a schematic structural view of the protective cover 1 in fig. 1 of the anti-loosening fastening device for bolt of the present invention.

In the figure: 1. a protective cover; 2. a lateral restraining screw; 3. a vertical dead-lock screw; 4. a center pole; 5. a protective cover; 6. a main nut; 7. a secondary nut; 8. a main bolt; 9. a split bolt is arranged inside.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-4, a bolt anti-loosening fastening device comprises a main bolt 8, a main nut 6 is arranged on the outer surface of the upper end of the main bolt 8, a built-in split bolt 9 is arranged at the lower end of the main bolt 8, a central rod 4 is arranged on the outer surface of the middle of the upper end of the built-in split bolt 9, a secondary nut 7 is arranged above the built-in split bolt 9, a protective cover 1 is arranged at the upper end of the main bolt 8, a protective cover 5 is arranged on the outer surface of the upper end of the protective cover 1, transverse limiting screws 2 are arranged on the outer surface around the protective cover 1, and vertical locking screws 3.

A first threaded hole is formed between the transverse limiting screw 2 and the protective cover 1, the outer surface of the transverse limiting screw 2 is movably connected with the outer surface of the protective cover 1 through the first threaded hole, a second threaded hole is formed between the vertical locking screw 3 and the protective cover 1, and the outer surface of the vertical locking screw 3 is movably connected with the outer surface of the protective cover 1 through the second threaded hole, so that better fastening is facilitated; the outer surface of the upper end of the secondary nut 7 is provided with an opposite groove, and the outer surface of the lower end of the secondary nut 7 is fixedly connected with the outer surface of the upper end of the built-in split bolt 9 through the central rod 4, so that the actual using effect is favorably ensured; a rotary fit thread is arranged between the protective cover 5 and the protective cover 1, and the outer wall of the protective cover 5 is movably connected with the inner surface of the protective cover 1 through the rotary fit thread, so that the operation is more convenient and faster; the rubber ring is arranged on the outer surface of the lower end of the protective cover 5, so that the protective effect is better improved; the main nut 6 and the outer surface of the protective cover 1 are provided with anti-skid threads, so that the gripping is more convenient and faster.

It should be noted that, the utility model relates to a bolt anti-loosening fastening device, when using, we need to determine the exact position that the bolt was twisted first, then operate through special instrument again, the use of traditional bolt is unless its own material possesses anti-corrosion performance, otherwise can't play good anti-corrosion effect during the use, to this problem then can improve through protection casing 1, just so need aim at the lid position at protection casing 1 earlier before twisting the bolt, then twist main bolt 8 again can, finally rotate protective cover 5 closed, just so can form good protective effect in the position that the bolt is fixed, in the actual use, also have some models to possess similar protective effect, but the device of the same kind is mostly movable style, so can't play the anticreep effect, the problem can be improved by a transverse limiting screw 2 and a vertical locking screw 3, firstly the vertical locking screw 3 can ensure that the traditional protective structure is directly fixed, so that the looseness caused by vibration, collision and the like during use can be avoided, secondly the transverse limiting screw 2 can play an effective transverse restraining effect on the surface of a main nut 6 at the tail end of a main bolt 8, the main nut 6 can be better fixed after being screwed in by strong transverse restraining force, and therefore the anti-falling effect of the whole bolt is effectively improved, different from the traditional bolt structure, the bolt of the device is formed by combining the main bolt 8 and an internal split bolt 9, the main bolt 8 and the internal split bolt 9 are connected through a central rod 4, and finally a secondary nut 7 is arranged at the top end of the central rod 4, so that the main nut 6 and the secondary nut 7 need to be fixed when being screwed in use, because the secondary screw cap 7 adopts the built-in opposite-nature screwdriver for rotation, the main bolt 8 and the built-in split bolt 9 can be stressed independently after being screwed completely, but one of the main bolt 8 and the built-in split bolt 9 is independently rotated, and the other can have opposite blocking effect, so that the whole bolt cannot be directly screwed out externally, and the anti-falling effect of the whole bolt can only be realized by synchronously rotating the main screw cap 6 and the secondary screw cap 7 through special tools.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A bolt anti-loosening fastening device comprises a main bolt (8), and is characterized in that: the utility model discloses a safety protection device for the automobile engine, including main bolt (8), the upper end surface of main bolt (8) is provided with main nut (6), the lower extreme of main bolt (8) is provided with built-in components of a whole that can function independently bolt (9), the upper end middle part surface of built-in components of a whole that can function independently bolt (9) is provided with well core rod (4), the top of built-in components of a whole that can function independently bolt (9) is provided with time nut (7), the upper end of main bolt (8) is provided with protection casing (1), the upper end surface of protection casing (1) is provided with protective cover (5), the surface all around of protection casing (1) all is provided with horizontal restriction.

2. A bolt looseness prevention fastening device according to claim 1, wherein: be provided with the screw hole No. one between horizontal restriction screw (2) and protection casing (1), the surface of horizontal restriction screw (2) is through the surface swing joint of screw hole No. one and protection casing (1), be provided with the screw hole No. two between vertical dead lock screw (3) and protection casing (1), the surface swing joint of surface through screw hole No. two and protection casing (1) of vertical dead lock screw (3).

3. A bolt looseness prevention fastening device according to claim 1, wherein: the outer surface of the upper end of the secondary nut (7) is provided with an opposite-shaped groove, and the outer surface of the lower end of the secondary nut (7) is fixedly connected with the outer surface of the upper end of the built-in split bolt (9) through the central rod (4).

4. A bolt looseness prevention fastening device according to claim 1, wherein: be provided with the rotatory screw thread that coincide between protective cover (5) and protection casing (1), the outer wall of protective cover (5) is through the internal surface swing joint of rotatory screw thread that coincide with protection casing (1).

5. A bolt looseness prevention fastening device according to claim 1, wherein: the outer surface of the lower end of the protective cover (5) is provided with a rubber ring.

6. A bolt looseness prevention fastening device according to claim 1, wherein: the main nut (6) and the outer surface of the protective cover (1) are both provided with anti-skid threads.