CN215257286U

CN215257286U - Self-locking nut

Info

Publication number: CN215257286U
Application number: CN202120943292.8U
Authority: CN
Inventors: 许爱军; 姚灿; 陈华
Original assignee: Changsha 5712 Aircraft Industry Co ltd
Current assignee: Changsha 5712 Aircraft Industry Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-12-21
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses a self-locking nut, including first components of a whole that can function independently, second components of a whole that can function independently and elasticity locking ring, first components of a whole that can function independently reach the inside screw hole that all is equipped with of second components of a whole that can function independently, be equipped with first grafting portion on the first components of a whole that can function independently, be equipped with second grafting portion on the second components of a whole that can function independently, second grafting portion cover is established first grafting portion periphery, be equipped with outer locking groove on the first grafting portion, be equipped with interior locking groove on the second grafting portion, elasticity locking ring is located interior locking groove reaches among the cavity that outer locking groove formed. The utility model has the advantages of locking, auto-lock are effectual, and the monolithic integration is reliable, and is safe firm, and the installation is dismantled conveniently, has increased the life of nut, has saved cost in business etc.

Description

Self-locking nut

Technical Field

The utility model relates to a fastening connection spare especially relates to a self-locking nut.

Background

The nut is a common fastener in production and manufacturing, and is usually matched with a bolt or a screw to play a fastening role, and the common nut is easy to loosen and poor in fastening effect due to vibration, impact and the like in the using process. Therefore, a self-locking nut with good locking effect and difficult loosening is urgently needed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a locking effectual, difficult pine takes off, safe firm self-locking nut.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a self-locking nut, includes first components of a whole that can function independently, the second body of dividing and elasticity locking ring, first components of a whole that can function independently reach the inside screw hole that all is equipped with of second body of dividing, be equipped with first grafting portion on the first body of dividing, be equipped with second grafting portion on the second body of dividing, second grafting portion cover is established first grafting portion periphery, be equipped with outer locking groove on the first grafting portion, be equipped with interior locking groove on the second grafting portion, elasticity locking ring is located interior locking groove reaches among the cavity that outer locking groove formed.

As a further improvement of the above technical solution:

the first split body is further provided with a clamping part, and the second sleeving part is abutted to the clamping part.

The end face of the elastic anti-loosening ring close to the clamping part is a first plane.

The outer circle surface of the elastic anti-loosening ring is a second plane, and the two planes are connected through an arc surface.

From the inner locking groove to the end abutted against the clamping part, the inner diameter of the second sleeving part is gradually increased.

The clamping part is a hexagonal clamping part, and the second split body is a hexagonal nut.

The first sleeving part is provided with a chamfer.

The elastic anti-loosening ring is a rubber ring.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a take lock washer's self-locking nut divide into first components of a whole that can function independently and second components of a whole that can function independently with the nut, first components of a whole that can function independently and second components of a whole that can function independently inside all are equipped with the internal thread, are equipped with first grafting portion on the first components of a whole that can function independently, are equipped with second grafting portion on the second components of a whole that can function independently, and second grafting portion cover is established in first grafting portion periphery, is equipped with outer locking groove on the first grafting portion, is equipped with interior locking groove on the second grafting portion, and elasticity locking ring is located in the cavity that interior locking groove and outer locking groove formed.

When in use, the elastic anti-loose ring is arranged in the outer locking groove of the first split body, the internal threads of the first split body and the second split body are connected with the corresponding external threads, the inner side surface of the second split body gradually compresses the elastic anti-loose ring on the first split body along with the gradual screwing of the second split body to the first split body to force the elastic anti-loose ring to deform and press the elastic anti-loose ring in the gap of the outer locking groove, when the second sleeving part is screwed to the bottom of the first sleeving part, the elastic anti-loose ring just bounces into the inner locking groove of the second split body, namely the elastic anti-loose ring is tightly hooped in the inner locking groove of the second split body and the outer locking groove of the first split body at the moment, so that the relative rotation between the first split body and the second split body is prevented, the anti-loose effect is improved, meanwhile, the elastic anti-loose ring can play a good buffering role in a high-vibration and strong-impact installation environment, and the anti-loose and self-locking effects are further improved, the integral connection is reliable, safe and stable, the installation and the disassembly are convenient, the service life of the screw cap is prolonged, and the enterprise cost is saved.

Drawings

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

Fig. 2 is a schematic structural view of the middle anti-loose rubber ring of the present invention.

Fig. 3 is a schematic perspective view of the present invention.

The reference numerals in the figures denote:

1. a first split body; 11. a first nesting portion; 12. an outer locking groove; 13. a clamping part; 14. chamfering; 2. a second body; 21. a second socketing portion; 22. an inner locking groove; 3. an elastic anti-loosening ring; 31. a first plane; 32. a second plane; 33. a circular arc surface; 4. a threaded bore.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the drawings and specific embodiments.

As shown in fig. 1 to 3, the self-locking nut of the present embodiment includes a first split body 1, a second split body 2 and an elastic anti-loosening ring 3, wherein threaded holes 4 are respectively formed in the first split body 1 and the second split body 2, a first engaging portion 11 is disposed on the first split body 1, a second engaging portion 21 is disposed on the second split body 2, the second engaging portion 21 is sleeved on the periphery of the first engaging portion 11, an outer locking groove 12 is disposed on the first engaging portion 11, an inner locking groove 22 is disposed on the second engaging portion 21, and the elastic anti-loosening ring 3 is disposed in a cavity formed by the inner locking groove 22 and the outer locking groove 12.

When the self-locking nut is used, the elastic anti-loosening ring 3 is arranged in the outer locking groove 12 of the first split body 1, the inner threads 4 of the first split body 1 and the second split body 2 are connected with the corresponding outer threads, the inner side surface of the second split body 2 gradually compresses the elastic anti-loosening ring 3 on the first split body 1 along with the gradual screwing of the second split body 2 to the first split body 1, the elastic anti-loosening ring 3 is forced to deform, the elastic anti-loosening ring 3 is compressed in the gap of the outer locking groove 22, when the second sleeving part 21 is screwed to the bottom of the first sleeving part 11, the elastic anti-loosening ring 3 just flicks into the inner locking groove 22 of the second split body 2, namely the elastic anti-loosening ring 3 is tightly hooped in the inner locking groove 22 of the second split body 2 and the outer locking groove 12 of the first split body 1 at the moment, the relative rotation between the first split body 1 and the second split body 2 is prevented, the anti-loosening effect is improved, and meanwhile, the elastic anti-loosening ring 3 can vibrate at high vibration, The strong impact buffer has the advantages of good buffering effect under the installation environment, looseness prevention and self-locking effects, reliability in integral connection, safety, stability, convenience in installation and disassembly, increase in the service life of the nut and saving in enterprise cost.

In this embodiment, the first split body 1 is further provided with the clamping portion 13, so that the first split body 1 can be freely screwed out of the second split body 2, the assembly and disassembly are convenient, and the second sleeving portion 21 abuts against the clamping portion 13, so that the limiting effect can be achieved.

In this embodiment, the end surface of the elastic anti-loose ring 3 near the clamping portion 13 is a first plane 31. Improve elasticity and prevent the power of cramping of pine ring 3, avoid elasticity to prevent that pine ring 3 rotates when screwing up second body 2 simultaneously, improve the installation effectiveness.

In this embodiment, the outer circumferential surface of the elastic anti-loosening ring 3 is a second plane 32, and the two planes are connected by an arc surface 33. When the second sub-body 2 is screwed to the first sub-body 1, the arc surface 33 can play a good transition role, and the two planes are matched to further improve the clamping force of the elastic anti-loosening ring 3.

In this embodiment, the inner diameter of the second nesting portion 21 gradually increases from the inner locking groove 22 to the end abutting against the clamping portion 13. Reducing the resistance to squeezing the elastic anti-loosening ring 3 when the second body 2 is screwed down onto the first body 1

In this embodiment, the clamping portion 13 is a hexagonal clamping portion, and the second body 2 is a hexagonal nut. The hexagonal shape facilitates handling and wear resistance, although in other embodiments, circular shapes and the like may be used.

In this embodiment, the first engaging portion 11 is provided with a chamfer 14 for easy assembly, disassembly and guiding.

In this embodiment, the elastic anti-loosening ring 3 is a rubber ring, so that the cost is low and the replacement is convenient.

It should be noted that although the present invention has been described with reference to the preferred embodiments, the present invention is not limited thereto. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.

Claims

1. A self-locking nut, characterized in that: including first components of a whole that can function independently (1), second components of a whole that can function independently (2) and elasticity anti-loosening ring (3), first components of a whole that can function independently (1) reaches second components of a whole that can function independently (2) inside all is equipped with screw hole (4), be equipped with first grafting portion (11) on first components of a whole that can function independently (1), be equipped with second grafting portion (21) on second components of a whole that can function independently (2), second grafting portion (21) cover is established first grafting portion (11) periphery, be equipped with outer locking groove (12) on first grafting portion (11), be equipped with interior locking groove (22) on second grafting portion (21), elasticity anti-loosening ring (3) are located interior locking groove (22) reach among the cavity that outer locking groove (12) formed.

2. The cage nut of claim 1, wherein: the first split body (1) is further provided with a clamping part (13), and the second sleeving and connecting part (21) is abutted to the clamping part (13).

3. The cage nut of claim 2, wherein: the end face of the elastic anti-loosening ring (3) close to the clamping part (13) is a first plane (31).

4. The cage nut of claim 3, wherein: the outer circle surface of the elastic anti-loosening ring (3) is a second plane (32), and the two planes are connected through an arc surface (33).

5. The self-locking nut according to any one of claims 2 to 4, characterized in that: the inner diameter of the second sleeving part (21) is gradually increased from the inner locking groove (22) to one end which is abutted with the clamping part (13).

6. The self-locking nut according to any one of claims 2 to 4, characterized in that: the clamping part (13) is a hexagonal clamping part, and the second split body (2) is a hexagonal nut.

7. The self-locking nut according to any one of claims 1 to 4, characterized in that: the first nesting portion (11) is provided with a chamfer (14).

8. The self-locking nut according to any one of claims 1 to 4, characterized in that: the elastic anti-loosening ring (3) is a rubber ring.