CN111609016A

CN111609016A - Anti-loosening bolt

Info

Publication number: CN111609016A
Application number: CN201910139188.0A
Authority: CN
Inventors: 徐立新
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-25
Filing date: 2019-02-25
Publication date: 2020-09-01

Abstract

The invention provides a check bolt which is characterized by comprising a bolt head and a screw rod with external threads, wherein a hole is formed in one side of the screw rod, internal threads are formed in the hole, and the external threads of the screw rod are opposite to the internal threads in the hole in one side of the screw rod in rotation direction; a flange nut is also arranged, and a hole is arranged on the flange; the flange bolt is also provided with a hole, the bolt is used for penetrating through the holes on the flange nut and the flange bolt, and the left-handed threaded nut and the right-handed threaded bolt or the right-handed threaded nut and the left-handed threaded bolt are fixed together, so that the nut and the screw are mutually restricted to achieve the anti-loosening effect.

Description

Anti-loosening bolt

Technical Field

The invention relates to the field of fasteners, in particular to a check bolt.

Background

At present, bolt and nut installed on bridges, rails, airplanes, trains, automobiles and machine tools can be loosened under the action of vibration, so that the bolt and nut can not exert the due fastening effect. Spring washers, double nuts, increased friction, etc. are typically used to install the bolt and nut. The fastening capacity of the bolt and the nut can be improved to a certain extent, but when the bolt and the nut are vibrated by high strength, the bolt and the nut are loosened, potential safety hazards are caused, and even safety accidents occur.

Disclosure of Invention

In view of this, the invention provides a check bolt, which is used in cooperation with a nut and a bolt, so that the fastening force of the bolt and the nut is improved, and the bolt and the nut are not loosened.

In order to achieve the technical effect, the invention provides a check bolt which is characterized by comprising a bolt head and a screw rod with external threads, wherein a hole is formed in one side of the screw rod, internal threads are formed in the hole, and the external threads of the screw rod are opposite to the internal threads in the hole in one side of the screw rod in rotation direction; a flange nut is also arranged, and a hole is arranged on the flange; the flange bolt is also provided with a hole, the bolt is used for penetrating through the holes on the flange nut and the flange bolt, and the left-handed threaded nut and the right-handed threaded bolt or the right-handed threaded nut and the left-handed threaded bolt are fixed together, so that the nut and the screw are mutually restricted to achieve the anti-loosening effect.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

FIG. 1 is a schematic front view of a lockbolt of the present invention;

FIG. 2 is a schematic top view of the lockbolt of the present invention;

FIG. 3 is a cross-sectional view of the lockbolt of the present invention;

FIG. 4 is a schematic top view of a flange nut;

FIG. 5 is a schematic elevational view of a flange nut;

FIG. 6 is a schematic top view of a flange bolt;

FIG. 7 is a schematic elevation view of a flange bolt;

FIG. 8 is a schematic view of a latch;

fig. 9 is a schematic view of the connection structure of the check bolt and the flange nut and the flange bolt and the plug pin of the present invention.

Detailed Description

The embodiments of the present invention will be described below with reference to the accompanying drawings, and the embodiments described herein are only for the purpose of illustrating and explaining the present invention and are not intended to limit the present invention.

The anti-loosening bolt is shown in a front view schematic diagram as fig. 1, a top view schematic diagram as fig. 2 and a cross-sectional schematic diagram as fig. 3, and comprises a screw head 1, a screw rod 2, a left-handed external thread 3, a hole 4 and a right-handed internal thread 5; the schematic plan view of the flange nut is shown in fig. 4, the schematic front view of the flange nut is shown in fig. 5, a hole 1, an outer hexagon 2, a flange plate 3 and a hole 4 on the flange plate; the schematic plan view of the flange bolt is shown in fig. 6, the schematic front view of the flange bolt is shown in fig. 7, and the screw head 1, the flange plate 2, the screw rod 3 and the right-hand thread 4 are arranged; holes 5 in the flange; bolt schematic as shown in fig. 8, bolt 1; the schematic diagram of the connection structure of the anti-loosening bolt, the flange nut, the flange bolt and the bolt is shown in fig. 9, and the anti-loosening bolt, the flange nut, the flange bolt and the bolt are respectively provided with a screw head 1, a screw rod 2, a left-handed thread 3, a left-handed thread flange nut 4, a right-handed thread flange bolt 5, a hole 6 on the flange and a bolt 7.

The invention is not limited to the above-described preferred embodiments, but may be modified and varied by those skilled in the art, and any modification and equivalents within the spirit and principle of the invention are included in the protection scope of the invention.

Claims

1. The utility model provides a check bolt which characterized in that, includes the spiral shell head, has the screw rod of external screw thread, and one side of screw rod has the hole, has the internal thread in the hole to the external screw thread of screw rod is opposite with the internal thread direction of rotation in the hole of screw rod one side.