CN220452465U

CN220452465U - Anti-loosening bolt

Info

Publication number: CN220452465U
Application number: CN202322095985.8U
Authority: CN
Inventors: 陈刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-08-06
Filing date: 2023-08-06
Publication date: 2024-02-06
Anticipated expiration: 2033-08-06

Abstract

A locking bolt is provided with a bolt, a nut A and a nut B, a threaded section of the bolt is in threaded connection with the nut A and the nut B, a U-shaped inserting piece is clamped between the nut A and the nut B and is arranged between thread pitches of the bolt, the inner edge of the U-shaped inserting piece is provided with an inserting piece inner edge arc edge which is matched with the shape of a bolt root, the arc edge can enable the U-shaped inserting piece to be matched and butted with the bolt root, through holes are formed in two sides of a port of the U-shaped inserting piece, a tightening belt penetrates through the two through holes, and two ends of the tightening belt are in locking connection so as to prevent the U-shaped inserting piece from moving. The bolt of the technology has the advantages of simple structure, convenient processing, low cost and good anti-loosening effect, and can replace bolts with fastening functions in various mechanical equipment.

Description

Anti-loosening bolt

Technical Field

The utility model relates to a locking bolt, and belongs to the technical field of bolt fasteners.

Background

The traditional anti-loosening bolt generally depends on self-locking of two nuts to realize anti-loosening, and the nut is easy to reverse on the bolt to loosen the bolt due to vibration. In order to solve the defect that the traditional bolt is easy to loosen, various technical schemes of anti-loosening bolts are disclosed, and some schemes have complex structures, so that the processing is difficult, for example, the anti-loosening bolts disclosed in Japanese have the defects of high manufacturing cost, a plurality of installation precautions and periodic inspection; some schemes have simple structures, but the fastening force is reduced, so that the scheme is not ideal. Further, the range of use of the lockbolt is limited by its special purpose.

Disclosure of Invention

The utility model aims to provide a locking bolt which is simple in structure, convenient to process, low in cost, good in locking effect and wide in application range.

The technical scheme of the utility model is as follows: the anti-loosening bolt is characterized in that a U-shaped inserting piece is clamped between the nut A and the nut B, and the U-shaped inserting piece is arranged between thread pitches of the bolt.

The inner edge of the U-shaped inserting piece is provided with an inserting piece inner edge arc edge which is matched with the shape of the screw thread bottom.

Through holes are formed in two sides of the port of the U-shaped inserting piece, the tensioning belt penetrates through the two through holes, and two ends of the tensioning belt are in locking connection so as to prevent the U-shaped inserting piece from moving.

The utility model has the advantages that: because the two nuts are tightly pressed with the U-shaped inserting piece, the screw teeth of the U-shaped inserting piece and the screw bolt are tightly pressed, the two nuts, the U-shaped inserting piece and the screw teeth of the screw bolt mutually depend on each other and are mutually independent to form a mutually restricted relation, under the external vibration environment, if the nut A is reversed loose, the U-shaped inserting piece is only tightly pressed with the screw teeth and the nut B is tightly pressed, and the nut A is reversed and cannot be synchronously reversed with the U-shaped inserting piece and the nut B, so that the nut A is blocked. The port both sides of U-shaped inserted sheet are equipped with the connecting hole, and locking behind the tensioning belt connection two connecting holes can be to U-shaped inserted sheet location, prevents to drop, and the tensioning belt is detachable, therefore U-shaped inserted sheet simple structure, and processing is convenient, and is with low costs, and it is effectual to cooperate current bolt, nut locking, uses and maintains very conveniently, and this locking bolt that moves plays the position of fastening effect among being applicable to various mechanical equipment.

Drawings

Fig. 1 is a schematic view of the structure of the anti-loosening bolt of the present utility model.

Fig. 2 is a top view of fig. 1.

FIG. 3 is a schematic view of the structure of the insert sheet of the present utility model.

In the figure: 1 bolt, 2 bolt root, 3 bolt crest, 4 thread pitch, 5 nut A, 6U-shaped inserted sheet, 7 nut B, 8 through-hole, 9 tightening strap, 10 inserted sheet inner edge arc limit.

Detailed Description

The utility model relates to a locking bolt which is provided with a bolt 1, a nut A5 and a nut B7, wherein the bolt is provided with a thread section, the thread section of the bolt is in threaded connection with the nut A and the nut B, a U-shaped inserting sheet 6 is clamped between the nut A and the nut B, and a tooth pitch 4,U-shaped inserting sheet 6 with the thickness smaller than that of the thread can be arranged between the thread pitches 4. The U-shaped inserting sheet is made of a manganese steel sheet and has the properties of high strength, toughness, impact resistance, extrusion resistance, wear resistance and the like. Can be punched and formed, and is convenient to process. The inner edge of the U-shaped insert is provided with an insert inner edge arc-shaped edge 10 which is matched with the shape of the bolt root 2. The arc edge is designed to enable the U-shaped inserting piece to be matched and butted with the root of the bolt, through holes 8 are formed in two sides of a port of the U-shaped inserting piece, and the two through holes are connected and locked by a tensioning belt 9 so as to prevent the U-shaped inserting piece from radial movement on the bolt. When the nut tightening tool is used, the upper nut and the lower nut are tightly clamped to the inserting piece, the inserting piece is tightly contacted with the root of the screw bolt, the tightening belt penetrates through the through holes on the two sides of the U-shaped inserting piece port to be screwed down, the nut B is unscrewed during maintenance, the tightening belt is unscrewed, the inserting piece is taken down, and the nut A is unscrewed.

Claims

1. The utility model provides a lockbolt, has bolt (1), nut A (5) and nut B (7), and the screw thread section and the nut A of bolt, nut B threaded connection, its characterized in that: a U-shaped inserting piece (6) is clamped between the nut A and the nut B, and the U-shaped inserting piece is arranged between the thread pitches (4) of the bolts.

2. A lockbolt as claimed in claim 1, wherein: the inner edge of the U-shaped insert is provided with an insert inner edge arc-shaped edge (10) which is matched with the shape of the bolt root (2).

3. A lockbolt as claimed in claim 1, wherein: through holes (8) are formed in two sides of the port of the U-shaped inserting piece, a tensioning belt (9) penetrates through the two through holes, and two ends of the tensioning belt are in locking connection.