CN215370549U

CN215370549U - Bolt with positive and negative spiral locking structure

Info

Publication number: CN215370549U
Application number: CN202121704935.XU
Authority: CN
Inventors: 俞国钧; 高秋香; 吉加龙; 蒋晶; 曹义
Original assignee: Taizhou Liujie Metal Technology Co ltd
Current assignee: Taizhou Liujie Metal Technology Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2021-12-31
Anticipated expiration: 2031-07-26

Abstract

The utility model discloses a bolt with a positive and negative spiral locking structure, which comprises a base, wherein a first connecting rod extends from one side of the base, and a through groove is formed in one end, far away from the base, of the first connecting rod. When the fixing part is fixed, the first connecting rod penetrates through a part to be fixed, then the part is fixed by the fixing part, the second connection is screwed into the through groove, the first limiting seat is coated by the second limiting seat, the limiting rod enters the first limiting groove at the moment, the magnet in the first through groove adsorbs the limiting rod, the limiting protrusion and the second limiting groove are mutually matched, the loosening and rotating direction of the fixing part is also the screwing direction of the second connecting rod because the spiral directions of the first thread and the second thread are opposite, so that when the fixing part is vibrated and tends to fall off, the limiting rod can provide a screwing force for the second connecting rod, and the falling off of the fixing part can be prevented.

Description

Bolt with positive and negative spiral locking structure

Technical Field

The utility model relates to the technical field of fasteners, in particular to a bolt with a positive and negative spiral locking structure.

Background

The bolt is a common fastener, fixes the part through the screwing of bolt and nut, but the phenomenon of becoming flexible appears easily when using on the equipment that the vibration frequency is higher, even drops to have great potential safety hazard.

Disclosure of Invention

The utility model aims to: in order to solve the problems, a bolt with a positive and negative screw type locking structure is provided.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a bolt with positive and negative spiral dead structure of lock, includes the base, one side of base is extended there is the head rod, the head rod is kept away from logical groove has been seted up to the one end of base, first screw thread has been seted up in the outside of head rod, the second screw thread has been seted up to the inner wall that leads to the groove, first screw thread with the spiral opposite direction of second screw thread, the outside cover of head rod is equipped with the mounting, the inside that leads to the groove is provided with prevents the locking portion that the mounting drops.

As a further description of the above technical solution:

the locking portion includes the second connecting rod, the one end of second connecting rod is provided with first spacing seat, the outside cover of first spacing seat is equipped with the spacing seat of second, the at least three gag lever post of angle fixedly connected with such as one side annular of the spacing seat of second.

As a further description of the above technical solution:

the outer side of the first limiting seat extends at least three limiting bulges in an annular and equidistant mode, the outer side of the second connecting rod is provided with a fourth thread, the inside of the second limiting seat is provided with a second through hole, and the inner wall of the second through hole is provided with at least three second limiting grooves in an annular and equal angle mode.

As a further description of the above technical solution:

the fixing piece is characterized in that a first through hole is formed in the fixing piece, third threads are formed in the inner wall of the first through hole, and at least three first limiting grooves are formed in one end of the fixing piece in an annular shape at equal angles.

As a further description of the above technical solution:

and the bottom of the first limiting groove is fixedly connected with a magnet.

As a further description of the above technical solution:

the limiting rod is made of iron.

In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:

in the utility model, a base, a first connecting rod, a through groove, a first thread, a second thread, a fixing piece, a first limit groove, a first through hole, a third thread, a second connecting rod, a fourth thread, a first limit seat, a limit bulge, a second limit seat, a second through hole, a second limit groove and a limit rod structure are arranged, when the fixing is carried out, the first connecting rod penetrates through a part to be fixed, then the part is fixed by the fixing piece, then the second connection is screwed into the through groove, the first limit seat is covered by the second limit seat, at the moment, the limit rod enters the first limit groove, a magnet in the first through groove adsorbs the limit rod, the limit bulge and the second limit groove are mutually matched, because the spiral directions of the first thread and the second thread are opposite, the loosening and rotating direction of the fixing piece is also the screwing direction of the second connecting rod, so when the fixing piece is vibrated, the fixing piece tends to fall off, the limiting rod can provide a screwing force for the second connecting rod, so that the fixing piece is prevented from falling off.

Drawings

FIG. 1 is a schematic diagram illustrating a first connecting rod structure provided in accordance with an embodiment of the present invention;

FIG. 2 illustrates a schematic view of a fastener construction provided in accordance with an embodiment of the present invention;

FIG. 3 is a schematic structural view of a second spacing block according to an embodiment of the utility model;

fig. 4 shows a schematic structural view of a second connecting rod provided according to an embodiment of the present invention.

Illustration of the drawings:

1. a base; 2. a first connecting rod; 3. a through groove; 4. a first thread; 5. a second thread; 6. a fixing member; 7. a first limit groove; 8. a first through hole; 9. a third thread; 10. a second connecting rod; 11. a fourth thread; 12. a first limiting seat; 13. a limiting bulge; 14. a second limiting seat; 15. a second through hole; 16. a second limit groove; 17. a limiting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a bolt with positive and negative spiral dead structure of lock, which comprises a base 1, one side of base 1 is extended there is head rod 2, head rod 2 keeps away from the one end of base 1 and has been seted up logical groove 3, first screw thread 4 has been seted up in the outside of head rod 2, second screw thread 5 has been seted up to the inner wall that leads to groove 3, the spiral opposite direction of first screw thread 4 and second screw thread 5, the outside cover of head rod 2 is equipped with mounting 6, the inside that leads to groove 3 is provided with the locking portion that prevents mounting 6 and drop, the setting of the portion of loosening is used for preventing coming off of mounting 6.

Specifically, as shown in fig. 1-4, the anti-loosening portion comprises a second connecting rod 10, one end of the second connecting rod 10 is provided with a first limiting seat 12, the outer side of the first limiting seat 12 is sleeved with a second limiting seat 14, one side of the second limiting seat 14 is fixedly connected with at least three limiting rods 17 at equal angles in an annular shape, the outer side of the first limiting seat 12 extends at least three limiting protrusions 13 at equal intervals in an annular shape, the outer side of the second connecting rod 10 is provided with a fourth thread 11, the inner side of the second limiting seat 14 is provided with a second through hole 15, the inner wall of the second through hole 15 is provided with at least three second limiting grooves 16 at equal angles in an annular shape, the inner side of the fixing member 6 is provided with a first through hole 8, the inner wall of the first through hole 8 is provided with a third thread 9, one end of the fixing member 6 is provided with at least three first limiting grooves 7 at equal angles in an annular shape, and the bottom of the first limiting grooves 7 is fixedly connected with a magnet, the limiting rod 17 is made of iron, when the fixing is performed, the first connecting rod 2 firstly penetrates through a part to be fixed, then the part is fixed by the fixing piece 6, the second connecting rod 10 is screwed into the through groove 3, the first limiting seat 12 is coated by the second limiting seat 14, the limiting rod 17 enters the first limiting groove 7 at the moment, a magnet in the first limiting groove 7 adsorbs the limiting rod 17, the limiting protrusion 13 and the second limiting groove 16 are mutually matched, and the loosening and rotating directions of the fixing piece 6 are also the screwing directions of the second connecting rod 10 because the spiral directions of the first thread 4 and the second thread 5 are opposite, so when the fixing piece 6 is vibrated and tends to fall off, the limiting rod 17 can give a screwing force to the second connecting rod 10, and the falling off of the fixing piece 6 can be prevented.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a bolt with positive and negative spiral dead structure of lock, includes base (1), its characterized in that, one side of base (1) is extended there is head rod (2), head rod (2) are kept away from logical groove (3) have been seted up to the one end of base (1), first screw thread (4) have been seted up in the outside of head rod (2), second screw thread (5) have been seted up to the inner wall that leads to groove (3), first screw thread (4) with the spiral opposite direction of second screw thread (5), the outside cover of head rod (2) is equipped with mounting (6), the inside that leads to groove (3) is provided with prevents the locking portion that mounting (6) drop.

2. The bolt with the positive and negative spiral type locking structure according to claim 1, wherein the anti-loosening portion comprises a second connecting rod (10), one end of the second connecting rod (10) is provided with a first limiting seat (12), a second limiting seat (14) is sleeved on the outer side of the first limiting seat (12), and at least three limiting rods (17) are fixedly connected to one side of the second limiting seat (14) in an annular equal-angle mode.

3. The bolt with the positive and negative spiral type locking structure according to claim 2, wherein the first limiting seat (12) has at least three limiting protrusions (13) extending annularly and at equal intervals on the outer side, the second connecting rod (10) has a fourth thread (11) on the outer side, the second limiting seat (14) has a second through hole (15) inside, and the second through hole (15) has at least three second limiting grooves (16) formed on the inner wall at equal angles and annularly.

4. The bolt with the positive and negative spiral type locking structure according to claim 1, wherein a first through hole (8) is formed in the fixing member (6), a third thread (9) is formed on the inner wall of the first through hole (8), and at least three first limiting grooves (7) are formed in one end of the fixing member (6) in an annular shape at equal angles.

5. The bolt with the positive and negative spiral locking structure according to claim 4, wherein a magnet is fixedly connected to the bottom of the first limiting groove (7).

6. The bolt with positive and negative screw type deadlocking structure according to claim 2, wherein the material of the limiting rod (17) is iron.