CN212360443U

CN212360443U - Nut capable of reducing looseness

Info

Publication number: CN212360443U
Application number: CN202020841267.4U
Authority: CN
Inventors: 林文波; 吴昭阳
Original assignee: Fujian Huagai Machinery Manufacture Co ltd
Current assignee: Fujian Huagai Machinery Manufacture Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-01-15
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses a reduce not hard up nut, including main nut, main nut's downside fixedly connected with spliced pole is equipped with the through-hole in the middle of the spliced pole and the middle of the main nut, is equipped with first internal thread in the through-hole, is equipped with the external screw thread on the spliced pole, is equipped with vice nut on the spliced pole, the both sides fixedly connected with backup pad of vice nut, the utility model discloses a produce radial force to the extrusion of wedge ring for spliced pole and bolted connection are inseparabler, avoid the nut pine to take off.

Description

Nut capable of reducing looseness

Technical Field

The utility model relates to a nut field specifically is a reduce not hard up nut.

Background

Nuts, also known as nuts, are parts that are screwed together with bolts or screws to effect the fastening. The working principle of the nut is self-locking through the friction force between the nut and the bolt. However, in the environment of large vibration such as rails, the reliability of self-locking is reduced due to long-time vibration, the nut is loosened, tools such as glue are adopted for preventing the nut from loosening and fixing, the nut is disassembled due to the influence of the tools, and the nut is troublesome to disassemble.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reduce not hard up nut to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a reduce not hard up nut, includes main nut, main nut's downside fixedly connected with spliced pole, be equipped with the through-hole in the middle of the spliced pole and in the middle of the main nut, be equipped with first internal thread in the through-hole, be equipped with the external screw thread on the spliced pole, be equipped with vice nut on the spliced pole, the both sides fixedly connected with backup pad of vice nut.

Preferably, the lower extreme department fixedly connected with wedge ring of spliced pole, the lower extreme of vice nut is equipped with the wedge annular, wedge annular and the coaxial setting of wedge ring, wedge ring and wedge annular phase-match.

Preferably, be equipped with the connecting hole in the middle of the vice nut, be equipped with the second internal thread in the connecting hole, vice nut passes through second internal thread and spliced pole threaded connection, the upper end both sides sliding connection of vice nut has the fixed block, fixed block one end is planar structure, the other end of fixed block is the arc concave surface, arc concave surface and through-hole are with the diameter, the arc concave surface goes out to be equipped with the third internal thread, second internal thread and third internal thread phase-match.

Preferably, a threaded hole is formed in the middle of the supporting plate, a screw rod is connected with the threaded hole in an internal thread mode, the right side of the screw rod is abutted against the fixed block, and a spring is arranged between the supporting plate and the fixed block.

Compared with the prior art, the beneficial effects of the utility model are that: twist and move the main nut and drive the spliced pole and connect together with the bolt, after connecting the completion, the revolute pair nut, wedge annular groove and the wedge ring joint of vice nut lower extreme and to its extrusion, the wedge ring produces a radial force, make to connect between spliced pole bottom and the bolt inseparabler, avoid leading to the nut not hard up because of vibrations, rotatory screw rod drives the fixed block and extrudees the spliced pole, fix vice nut, it leads to vice nut not hard up to avoid vibrations, the cooperation of fixed block and vice nut is used, make the usability of nut stronger, still have good auto-lock nature in the environment of vibrations, avoid vibrations to lead to the nut pine to take off.

Drawings

FIG. 1 is a schematic view of a nut connection structure;

FIG. 2 is a top view of the secondary nut connection structure.

In the figure: the screw rod comprises a main screw cap 1, a connecting column 2, a first internal thread 3, an auxiliary screw cap 4, a second internal thread 5, a wedge-shaped ring groove 6, a wedge-shaped ring 7, a fixing block 8, a third internal thread 9, a supporting plate 10, a spring 11 and a screw rod 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a reduce not hard up nut, includes main nut 1, and main nut 1's downside fixedly connected with spliced pole 2 is equipped with the through-hole in the middle of 2 spliced poles and main nut 1, is equipped with first internal thread 3 in the through-hole, is equipped with the external screw thread on the spliced pole 2, is equipped with vice nut 4 on the spliced pole 2, and the both sides fixedly connected with backup pad 10 of vice nut 4.

Lower extreme department fixedly connected with wedge ring 7 of spliced pole 2, the lower extreme of vice nut 4 is equipped with wedge annular 6, wedge annular 6 and the coaxial setting of wedge ring 7, wedge ring 7 and the 6 phase-matchs of wedge annular, vice nut 4 moves down and extrudees wedge ring 7, wedge annular 6 and the 7 joint of wedge ring are to its extrusion, wedge ring 7 produces a radial force for it is inseparabler to connect between 2 bottoms of spliced pole and the bolt, avoids leading to the nut to become flexible because of vibrations.

Be equipped with the connecting hole in the middle of vice nut 4, be equipped with second internal thread 5 in the connecting hole, vice nut 4 passes through second internal thread 5 and spliced pole threaded connection, the upper end both sides sliding connection of vice nut 4 has fixed

block

8, 8 one end of fixed block is planar structure, the other end of fixed block 8 is the arc concave surface, arc concave surface and through-hole are with the diameter, the arc concave surface goes out and is equipped with third internal thread 9, second internal thread 5 and third internal thread 9 phase-match, make third internal thread 9 also can be connected with the external screw thread fit, cause the damage to the thread of external screw when avoiding fixed block 8 to extrude spliced pole 2, influence vice nut 4's removal.

Be equipped with the screw hole in the middle of the backup pad 10, screw hole female connection has screw rod 12, and the right side of screw rod 12 supports and leans on fixed block 8, is equipped with spring 11 between backup pad 10 and the fixed block 8, and rotatory screw rod 12 drives fixed block 8 and extrudees spliced pole 2, fixes vice nut 4, avoids vibrations to lead to vice nut 4 not hard up, and spring 11 makes fixed block 8 support with screw rod 12 all the time and leans on together.

The working principle is as follows: twist and move the main nut and drive the spliced pole and connect together with the bolt, after connecting the completion, the vice nut of rotation, wedge annular groove and the wedge ring joint of vice nut lower extreme and extrude it, the wedge ring produces a radial force, make to connect between spliced pole bottom and the bolt inseparabler, avoid leading to the nut not hard up because of vibrations, rotatory screw rod drives the fixed block and extrudees the spliced pole, fix vice nut, it leads to vice nut not hard up to avoid vibrations, the arc concave surface play of fixed block is equipped with third internal thread 9, second internal thread 5 and third internal thread 9 phase-match, make third internal thread 9 also can be connected with the external screw thread fit, the thread to the external screw thread causes the damage when avoiding fixed block 8 to extrude spliced pole 2, influence the removal of vice nut 4, spring 11 makes fixed block 8 support with screw rod 12 all the time and lean on together.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A nut that reduces is not hard up, includes main nut (1), its characterized in that: the utility model discloses a nut, including spliced pole (2), the downside fixedly connected with spliced pole (1), be equipped with the through-hole in the middle of spliced pole (2) and in the middle of main nut (1), be equipped with first internal thread (3) in the through-hole, be equipped with the external screw thread on spliced pole (2), be equipped with vice nut (4) on spliced pole (2), both sides fixedly connected with backup pad (10) of vice nut (4).

2. A loosening reduction nut as defined in claim 1, wherein: the lower extreme department fixedly connected with wedge ring (7) of spliced pole (2), the lower extreme of vice nut (4) is equipped with wedge annular (6), wedge annular (6) and the coaxial setting of wedge ring (7), wedge ring (7) and wedge annular (6) phase-match.

3. A loosening reduction nut as defined in claim 1, wherein: be equipped with the connecting hole in the middle of vice nut (4), be equipped with second internal thread (5) in the connecting hole, vice nut (4) are through second internal thread (5) and spliced pole threaded connection, the upper end both sides sliding connection of vice nut (4) has fixed block (8), fixed block (8) one end is planar structure, the other end of fixed block (8) is the arc concave surface, arc concave surface and through-hole are with the diameter, the arc concave surface goes out to be equipped with third internal thread (9), second internal thread (5) and third internal thread (9) phase-match.

4. A loosening reduction nut as defined in claim 1, wherein: the middle of the supporting plate (10) is provided with a threaded hole, a screw rod (12) is connected with the threaded hole in an internal thread mode, the right side of the screw rod (12) is abutted to the fixed block (8), and a spring (11) is arranged between the supporting plate (10) and the fixed block (8).