CN214007740U

CN214007740U - Anti-loose nut

Info

Publication number: CN214007740U
Application number: CN202023003933.6U
Authority: CN
Inventors: 高峰; 高忆佳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-08-20
Anticipated expiration: 2030-12-14

Abstract

The utility model belongs to the technical field of mechanical parts, in particular to a locknut; the anti-loosening and anti-loosening device comprises a clockwise forward main nut, a conversion nut, a spring connection gasket and a counterclockwise reverse anti-loosening nut, wherein an outward disassembly pressing sheet and a downward fixing clip are respectively arranged on two sides of an opening end of the spring connection gasket, the downward fixing clip is connected to the clockwise forward main nut in a matched mode, a forward thread is arranged on an inner ring of the conversion nut, a reverse thread is arranged on an outer ring of the conversion nut, a gradually-deep clamping groove is formed in the bottom of the counterclockwise reverse anti-loosening nut, the counterclockwise reverse anti-loosening nut is connected to the outer ring of the conversion nut in a threaded mode, the conversion nut with the counterclockwise reverse anti-loosening nut is arranged above the spring connection gasket, and the outward disassembly pressing sheet of the spring connection gasket is clamped in the gradually-deep clamping groove in the bottom of the counterclockwise reverse anti-loosening nut; the nut can be prevented from loosening, the nut is fundamentally locked and locked, and the manufacturing process is simple.

Description

Anti-loose nut

Technical Field

The utility model belongs to the technical field of machine parts, concretely relates to locknut.

Background

In actual work, more than two joint parts are fixed by using a screw and a nut, however, when external load is subjected to vibration, change and high-temperature material creep, friction force between threaded connections is reduced, positive pressure disappears at a certain moment in the threaded connections, and the friction force is 0, so that the threaded connections are loosened, and if repeated action is performed, the threaded connections are loosened and fail. Therefore, the locking is necessary, otherwise, the normal work is influenced, and accidents are caused. It follows that the anti-loosening has two principles: one is to eliminate (or limit) relative movement between the thread pairs and the other is to increase the difficulty of the relative movement. In the prior art, the nut is prevented from loosening by using additional friction force 1; 2. using a special anti-loosening element to prevent loosening; 3. and adopting an adhesive to bond and prevent looseness. However, the anti-loosening effect brought by adopting the anti-loosening measures is not good, and the recycling efficiency is not high.

Disclosure of Invention

In order to overcome the problem, the utility model provides a locknut can prevent that the nut is not hard up, with the fundamental locking of nut, pinning, preparation simple process.

The utility model provides a locknut, including forward main nut 2 in the same time, conversion nut 3, spring coupling gasket 4 and reverse locknut 5 in the same time, wherein the open end both sides of 4 perks of spring coupling gasket are equipped with extroversion respectively and dismantle preforming 41 and downward retaining clip 42, spring coupling gasket 4 connects on forward main nut 2 in the same time through the cooperation of the downward retaining clip 42 on it, the inner circle of conversion nut 3 is equipped with forward screw, the outer lane is equipped with reverse screw, reverse locknut 5's in the same time bottom is equipped with gradually dark draw-in groove 51, reverse locknut 5 threaded connection in the outer lane of conversion nut 3 in the same time, conversion nut 3 that has reverse locknut 5 in the same time arranges spring coupling gasket 4 top in, and dismantle the preforming 41 card in spring coupling gasket 4's extroversion in the reverse locknut 5 bottom gradually dark draw-in groove 51 in the same time.

The clockwise forward main nut 2 is provided with a forward nut fixing groove 21, and the downward fixing clip 42 of the spring connecting gasket 4 is matched and connected in the forward nut fixing groove 21 of the clockwise forward main nut 2.

The bottom of the reverse locknut 5 is provided with two symmetrically arranged gradually deep clamping grooves 51.

And the inner ring of the clockwise forward main nut 2 is provided with forward threads.

The inner ring of the reverse-time reverse locknut 5 is provided with reverse threads.

The utility model has the advantages that:

the utility model connects the main nut and the locknut together through various unique and ingenious mechanism designs on the spring washer and the conversion nut, and the main nut and the locknut are combined into a whole; the loosening directions of the main nut and the locknut are just opposite after the main nut and the locknut are integrated into a whole: if the main nut is loosened, the locknut is just fastened, otherwise, the locknut is fastened to fix the main nut if the locknut is loosened; the opposite torque of the two is transmitted through the spring washer and the clamp thereof, and the two can not be loosened unless the clamp is pressed down to separate the two and restore the free rotation, so that the anti-loosening effect is obvious.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the forward main nut in the clockwise direction of the present invention.

Fig. 3 is a schematic view of the spring connection gasket structure of the present invention.

Fig. 4 is a schematic structural view of the reverse locknut of the present invention.

Fig. 5 is a schematic view of the bottom structure of the reverse locknut in reverse time.

Wherein: 1. a bolt; 2. forward main nut clockwise; 21. a positive nut fixing groove; 3. converting the nut; 4. the spring is connected with the gasket; 41. outward disassembly of the tabletting; 42. downward fixing the clip; 5. a reverse locknut; 51. a gradually deep clamping groove; 6. The object to be fixed.

Detailed Description

As shown in fig. 1 to 5, the locknut comprises a clockwise positive main nut 2, a conversion nut 3, a spring connecting washer 4 and a counterclockwise reverse locknut 5, wherein, both sides of the cocked opening end of the spring connecting gasket 4 are respectively provided with an outward dismounting pressing sheet 41 and a downward fixing clip 42, the spring connecting gasket 4 is connected on the clockwise forward main nut 2 in a matching way through the downward fixing clip 42 on the spring connecting gasket, the inner ring of the conversion nut 3 is provided with a forward thread, the outer ring is provided with a reverse thread, the bottom of the reverse locknut 5 is provided with a gradually-deep clamping groove 51, the reverse locknut 5 is in threaded connection with the outer ring of the conversion nut 3, the conversion nut 3 with the reverse locknut 5 is arranged above the spring connecting gasket 4, and the outward disassembly pressing sheet 41 of the spring connecting gasket 4 is clamped in the gradually deep clamping groove 51 at the bottom of the reverse locknut 5.

The utility model discloses a use:

pass bolt 1 that is equipped with forward screw thread with the outer lane by fixture 6, then 2 threaded connection on bolt 1 of forward main nut in the same time, and be located by fixture 6 top, 4 covers of spring coupling gasket are put outside bolt 1, and connect on forward main nut 2 in the same time through the cooperation of the downward fixing clip 42 on it, conversion nut 3 is in the bolt 1 outer lane of spring coupling gasket 4 top through the forward threaded connection of its inner circle, reverse locknut 5 threaded connection in the outer lane of conversion nut 3 in the contrary time, and with the outside dismantlement preforming 41 card of spring coupling gasket 4 can in the gradual dark draw-in groove 51 of reverse locknut 5 bottom in the contrary time.

When wanting to dismantle the utility model discloses the time, only need will push down the outside preforming 41 of dismantling through external force for the outside is dismantled preforming 41 and is broken away from in the gradually dark draw-in groove 51, and reverse locknut 5 will reverse time again and screw down from conversion nut 3, and conversion nut 3 screws down from bolt 1, takes spring coupling gasket 4, will be in the same direction as time forward main nut 2 again and screw down from bolt 1.

The clockwise and forward main nut 2 is used for fastening a fixed object 6; the material of the spring connecting gasket 4 is not too hard so as to be convenient for pressing and dismounting; the reverse locknut 5 generates downward pressure on the spring connecting gasket 4; the forward nut fixing groove 21 enables the spring connecting gasket 4 and the forward main nut 2 to be rigidly connected and fixed, the gradually-deep clamping groove 51 and the spring connecting gasket 4 are elastically connected, and the rotation stress is prevented (cannot be loosened); the downward fixing clip 42 is used for being inserted into the forward nut fixing groove 21 on the forward main nut 2 in a clockwise mode, so that rigid connection and fixation are generated between the forward main nut and the forward nut; the gradually-deep clamping groove 51 at the bottom of the reverse locknut 5 is clamped by the outward-facing disassembly pressing sheet 41, the rotation stress of the reverse locknut is prevented, the reverse locknut cannot be loosened, the reverse locknut 5 is separated from the gradually-deep clamping groove 51 after being pressed down by external force, and the reverse locknut 5 is recovered to rotate and can be disassembled.

The principle of the utility model is as follows:

the nut is loosened because the reverse force is generated by the vibration of a fixed object generally, if the vibration cannot be eliminated, the anti-loosening idea is how to overcome the reverse force, and the main nut and the anti-loosening nut are connected together and combined into a whole through various unique and ingenious mechanism designs on the spring gasket and the conversion nut; the loosening directions of the main nut and the locknut are just opposite after the main nut and the locknut are integrated into a whole: if the main nut is loosened, the locknut is just fastened, otherwise, the locknut is fastened to fix the main nut if the locknut is loosened; the opposite torque of the two is transmitted through the spring washer and the clamp thereof, and the two can not be loosened unless the clamp is pressed down to separate the two and restore the free rotation, so that the anti-loosening effect is obvious.

Claims

1. The utility model provides a locknut, its characterized in that is including forward nut (2) in the same time, conversion nut (3), spring coupling gasket (4) and reverse locknut (5) in the reverse time, wherein the open end both sides of spring coupling gasket (4) perk are equipped with extroversion dismantlement preforming (41) and downward fixing clip (42) respectively, spring coupling gasket (4) are connected on forward nut (2) in the same time through downward fixing clip (42) cooperation on it, the inner circle of conversion nut (3) is equipped with forward screw, the outer lane is equipped with reverse screw, the bottom of reverse locknut (5) in the reverse time is equipped with gradually dark draw-in groove (51), reverse locknut (5) threaded connection in the outer lane of conversion nut (3) in the reverse time, spring coupling gasket (4) top is arranged in to conversion nut (3) that has reverse locknut (5) in the reverse time, and dismantle extroversion dismantlement preforming (41) card in spring coupling gasket (4) in the reverse nut (5) bottom in the reverse time A gradually deepened clamping groove (51).

2. The locknut of claim 1, characterized in that the clockwise main nut (2) is provided with a forward nut fixing groove (21), and the downward fixing clip (42) of the spring connecting washer (4) is fittingly connected in the forward nut fixing groove (21) of the clockwise main nut (2).

3. The locknut according to claim 2, characterized in that the bottom of the reverse locknut (5) is provided with two symmetrically arranged gradually deep slots (51).

4. A locknut according to claim 3, characterized in that the inner ring of the clockwise positive main nut (2) is provided with a positive thread.

5. A locknut according to claim 4, characterized in that the inner ring of the reverse-time reverse locknut (5) is provided with a reverse thread.