CN214945649U

CN214945649U - Reliability anti-loosening fastener for aviation

Info

Publication number: CN214945649U
Application number: CN202120125994.5U
Authority: CN
Inventors: 秦华亮; 吉文; 秦永强; 尤小红; 赵祥翔
Original assignee: Jiangsu Lida Industrial Technology Co ltd
Current assignee: Jiangsu Lida Industrial Technology Co ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-11-30
Anticipated expiration: 2031-01-18

Abstract

The utility model discloses an anti-loosening type fastener of reliability for aviation, including bolt, gasket and nut, the nested gasket that is equipped with in bolt upper end, the nested nut that is equipped with in the gasket outside, the inside movable mounting in bolt top has the spacer, bolt middle part surface movable mounting has the steel ball, the inside fixed nut through-hole that is equipped with of nut, the terminal fixed spacing groove that is equipped with of nut through-hole, movable mounting has fastening bolt in the nut through-hole, fastening bolt outside movable mounting has insulating fastener, and its beneficial effect does: before the use, at first set up the thread groove on the object of being fastened, pass the bolt and rotate into the object of being fastened with the gasket, when the steel ball touches the internal thread surface of the object of being fastened, can make the steel ball receive an inward thrust to smooth with the screw thread chucking, when rotatory when reaching the position, spring B gives the steel ball an outside elasticity, pops out the steel ball, the card is gone into the steel ball inslot, reaches the effect that is difficult for becoming flexible.

Description

Reliability anti-loosening fastener for aviation

Technical Field

The utility model relates to a relevant technical field of fastener for the aviation specifically is a locking type fastener of moving of reliability for aviation.

Background

The fasteners are widely distributed on the airplane, the number of the fasteners such as bolts, nuts, rivets and the like of various materials and structures on the fuselage and the wings of a typical double-channel airplane is about 40 ten thousand, wherein the fastener connecting pair which is widely applied is a titanium alloy bolt and a stainless steel supporting plate self-locking nut.

In the flight process of an airplane, along with the vibration of an engine and the self-jolt of the airplane, in the engineering practice at the present stage, a typical fastener connecting pair represented by a titanium alloy bolt and a stainless steel supporting plate self-locking nut is easy to generate relative displacement and loosen and fall off, and electrochemical corrosion is easy to generate on the surfaces of a metal fastener and a fastened object, so that a certain degree of danger is caused.

Therefore, the invention is necessary to provide a reliable anti-loosening fastener for aviation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-loosening type fastener of reliability for aviation to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an anti-loosening type fastener of reliability for aviation, includes bolt, gasket and nut, the nested gasket that is equipped with in bolt upper end, the nested nut that is equipped with in the gasket outside, the inside fixed separation groove that is equipped with in bolt top, it has the separation piece to separate inslot movable mounting, bolt middle part surface movable mounting has the steel ball, the inside fixed nut through-hole that is equipped with of nut, the terminal fixed spacing groove that is equipped with of nut through-hole, movable mounting has fastening bolt in the nut through-hole, fastening bolt outside movable mounting has insulating fastener.

Preferably, the bolt, the gasket and the nut are rotationally fixed through threads, the number of the gaskets is totally two, the gaskets are symmetrically arranged in parallel, the number of the nuts is totally two, and the nuts are sequentially arranged.

Preferably, a fastening bolt is movably installed inside the nut, the internal shape and structure of the fastening bolt is hexagonal, the fastening bolt is assembled and disassembled by a special key, and the shape and structure of the special key is L-shaped.

Preferably, the inside bottom mounting of fastening bolt is equipped with spring A, fastening bolt's fixed surface is equipped with dials the piece groove, and dials the quantity in piece groove and set up to one altogether, the plectrum groove is symmetric distribution about fastening bolt's axis, plectrum inslot movable mounting has the plectrum.

Preferably, the number of the steel ball grooves is totally set to be one, and the steel ball grooves are sequentially and alternately and symmetrically distributed around the central axis of the bolt.

Preferably, a spring B is fixedly arranged at the bottom in the steel ball groove, a steel ball is movably embedded in the steel ball groove, and the diameter of the embedded part of the steel ball is larger than that of the exposed part of the steel ball.

Compared with the prior art, the beneficial effects of the utility model are that: before the use, at first set up the thread groove on the object of being fastened, pass the bolt and rotate into the object of being fastened with the gasket, when the steel ball touches the internal thread surface of the object of being fastened, can make the steel ball receive an inward thrust to smooth with the screw thread chucking, when rotatory when reaching the position, spring B gives the steel ball an outside elasticity, pops out the steel ball, the card is gone into the steel ball inslot, reaches the effect that is difficult for becoming flexible.

Penetrating the gasket again, tightening the two nuts in sequence, inserting the separating sheet into the separating sheet groove to enable the separating sheet hole to be aligned with the nut through hole, inserting the fastening bolt into the nut through hole for rotary installation, when the plectrum on the fastening bolt touches the outer wall of the nut, the outer wall of the nut has outward thrust to the plectrum, the plectrum is stressed to contract inwards along the direction of the plectrum groove, thereby the rotating installation is carried out smoothly, after the installation is in place, the shifting sheet is popped out to the limiting groove for clamping, and finally the insulating fastener is installed, so as to achieve the effects of preventing loosening and electrochemical corrosion, when the disassembly is carried out, the special key is used, the insulating fastener is taken down, the special key is inserted into the bolt through hole of the fastening bolt, the special key generates inward thrust to the spring A, the spring drives the shifting sheet to contract inwards, therefore, the disassembly is smoothly carried out, and a special key is adopted in the disassembly and assembly process so as to achieve the anti-theft effect.

Drawings

FIG. 1 is a schematic view of the overall structure of an aviation reliable anti-loosening fastener of the present invention;

FIG. 2 is a schematic structural view of a fastening bolt of the reliable anti-loosening fastener for aviation of the present invention;

FIG. 3 is a schematic view of the vertical cross-sectional structure of the spacer of the reliable anti-loosening fastener for aviation of the present invention;

FIG. 4 is a schematic structural view of the fastening piece at the position A of the reliable anti-loosening fastener for aviation of the present invention;

fig. 5 is the utility model relates to a B department's schematic structure of locking type fastener of reliability for aviation.

In the figure: 1. a bolt; 2. a gasket; 3. a nut; 4. a separator; 401. a spacer hole; 5. fastening a bolt; 501. a bolt through hole; 502. a shifting sheet; 503. a spring A; 504. a slice pulling groove; 6. steel balls; 7. a special key; 8. an insulating fastener; 9. a thread groove; 10. a steel bead groove; 11. a spring B; 12. a separator groove; 13. a nut through hole; 14. a limiting groove.

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. 1-5, the present invention provides a technical solution: the utility model provides an anti-loosening type fastener of reliability for aviation, includes bolt 1, gasket 2 and

nut

3, 1 upper end nestification of bolt is equipped with

gasket

2, 2 outside nestings of gasket are equipped with

nut

3, 1 top inside fixed being equipped with of bolt separates groove 12, movable mounting has spacing block 4 in separating

groove

12, 1 middle part movable mounting of bolt has

steel ball

6, 3 inside fixed nut through-holes 13 that are equipped with of nut, 13 terminal fixed spacing grooves 14 that are equipped with of nut through-holes, movable mounting has fastening bolt 5 in the nut through-holes 13, fastening bolt 5 outside movable mounting has insulating fastener 8.

Bolt 1 adopts screw thread rotation fixed with gasket 2,

nut

3, 2 quantity of gasket are equipped with 2 altogether, and gasket 2 keeps the parallel symmetry setting, 3 quantity of nut is equipped with 2 altogether, and nut 3 is for arranging in proper order.

The nut 3 is internally and movably provided with a fastening bolt 5, the internal shape and structure of the fastening bolt 5 are hexagonal, the fastening bolt 5 is assembled and disassembled by a special key 7, and the shape and structure of the special key 7 are L-shaped.

The inside bottom mounting of fastening bolt 5 is equipped with spring A503, fastening bolt 5's fixed surface is equipped with plectrum groove 504, and the quantity of plectrum groove 504 sets up to 2 altogether, plectrum groove 504 is symmetric distribution about fastening bolt 5's axis, movable mounting has plectrum 502 in plectrum groove 504.

The number of the steel ball grooves 10 is totally 4, and the steel ball grooves 10 are sequentially and alternately and symmetrically distributed about the central axis of the bolt 1.

The bottom in the steel ball groove 10 is fixedly provided with a spring B11, a steel ball 6 is movably embedded in the steel ball groove 10, and the diameter of the embedded part of the steel ball 6 is larger than that of the exposed part of the steel ball 6.

It should be noted that, the utility model relates to an aviation is with locking type fastener of moving of reliability, before the use, at first set up thread groove 9 on the article of being fastened, pass into the rotatory fastening article of 2 with bolt 1, when steel ball 10 touches the internal thread surface of fastening the article, can make steel ball 10 receive an inward thrust, thereby smooth with the screw thread chucking, when rotatory when locating, spring B11 gives steel ball 10 an outside elasticity, pop out steel ball 10, the card is gone into steel ball 10 inslot, reach the effect that is difficult for becoming flexible.

The gasket 2 is penetrated again, the two nuts 3 are tightened successively, the separating plate 4 is inserted into the separating plate groove 12, the separating plate hole 401 is aligned with the nut through hole 13, the fastening bolt 5 is inserted into the nut through hole 13 for rotary installation, when the shifting plate 502 on the fastening bolt 5 touches the outer wall of the nut 3, the outer wall of the nut 3 has outward thrust on the shifting plate 502, the shifting plate 502 is stressed to contract inwards along the direction of the shifting plate groove 504, so that the rotary installation is carried out smoothly, after the installation is in place, the shifting plate 502 is popped out to the limiting groove 14 for clamping, finally the insulating fastener 8 is installed, so as to achieve the effects of preventing looseness and electrochemical corrosion, when the disassembly is carried out, the special key 7 is used, the insulating fastener 8 is taken down, the special key 7 is inserted into the bolt through hole 501 of the fastening bolt 5, the special key 7 generates inward thrust on the spring A503, and the spring A503 drives the shifting plate 502 to contract inwards, therefore, the disassembly is smoothly carried out, and the special key 7 is adopted in the disassembly and assembly process so as to achieve the anti-theft effect.

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. The utility model provides an anti-loosening type fastener of reliability for aviation which characterized in that: including bolt (1), gasket (2) and nut (3), bolt (1) upper end nestification is equipped with gasket (2), gasket (2) outside nestification is equipped with nut (3), the inside fixed separation groove (12) that is equipped with in bolt (1) top, it has separation blade (4) to separate movable mounting in groove (12), bolt (1) middle part surface movable mounting has steel ball (6), nut (3) inside fixed nut through-hole (13) that is equipped with, nut through-hole (13) end is fixed and is equipped with spacing groove (14), nut through-hole (13) interior movable mounting has fastening bolt (5), fastening bolt (5) outside movable mounting has insulating fastener (8).

2. The anti-loosening type fastener for reliability of aviation according to claim 1, wherein: bolt (1) adopts screw thread rotation to fix with gasket (2), nut (3), the quantity of gasket (2) is equipped with 2 altogether, and gasket (2) keep parallel symmetry to set up, the quantity of nut (3) is equipped with 2 altogether, and nut (3) are arranged in proper order.

3. The anti-loosening type fastener for reliability of aviation according to claim 1, wherein: the nut (3) is internally and movably provided with a fastening bolt (5), the internal shape structure of the fastening bolt (5) is hexagonal, the fastening bolt (5) is assembled and disassembled by a special key (7), and the shape structure of the special key (7) is L-shaped.

4. The anti-loosening type fastener for reliability of aviation according to claim 1, wherein: the inside bottom mounting of fastening bolt (5) is equipped with spring A (503), the fixed surface of fastening bolt (5) is equipped with dials piece groove (504), and dials the quantity in piece groove (504) and be equipped with 2 altogether, dial piece groove (504) are the symmetric distribution about the axis of fastening bolt (5), dial piece groove (504) interior movable mounting has plectrum (502).

5. The anti-loosening type fastener for reliability of aviation according to claim 1, wherein: the bolt is characterized in that a steel ball groove (10) is formed in the side surface of the bolt (1), 4 steel ball grooves (10) are formed in the side surface, and the steel ball grooves (10) are sequentially and alternately and symmetrically distributed about the central axis of the bolt (1).

6. The anti-loosening fastener for reliability of aviation according to claim 5, wherein: the spring B (11) is fixedly arranged at the bottom in the steel ball groove (10), the steel ball (6) is movably embedded in the steel ball groove (10), and the diameter of the embedded part of the steel ball (6) is larger than that of the exposed part of the steel ball (6).