CN218644626U

CN218644626U - Anti-loose bolt

Info

Publication number: CN218644626U
Application number: CN202120902698.1U
Authority: CN
Inventors: 李淑敏; 李贵堂
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2023-03-17
Anticipated expiration: 2031-04-28

Abstract

The utility model belongs to the technical field of threaded connection, especially, relate to a check bolt, including the bolt body, locknut and two-way locking spring washer, two-way locking spring washer and locknut are installed in proper order on the screw thread section of bolt body, the bolt body includes the bolt head, the bolt head top is equipped with the double-screw bolt, the bolt head is close to double-screw bolt end slope and is equipped with a plurality of first locking platforms, a plurality of first locking platforms evenly set up, locknut bottom slope is equipped with a plurality of second locking platforms, a plurality of second locking platforms evenly set up, two-way locking spring washer includes the inner circle, the slope of the inner circle outside is equipped with a plurality of pawls, the pawl uses the center of inner circle to be radial align to grid as the centre of a circle. The utility model discloses simple structure, convenient operation sets up pawl, first locking platform and the locking platform of second through the slope, and the pawl can prevent that the bolt is not hard up with the mutual butt of first locking platform or the locking platform of second.

Description

Anti-loosening bolt

Technical Field

The utility model belongs to the technical field of threaded connection, especially, check bolt.

Background

The anti-loosening bolt is mainly used for controlling loosening failure of a connecting part operating under a vibration state, and particularly needs to take measures to prevent the normal operation of the mechanical connecting part from being influenced by the loosening of the part in mechanical equipment in a vibration working state. The current common fastener anti-loosening methods generally include non-removable anti-loosening solutions and increased friction. The non-detachable anti-loosening scheme adopts modes such as spot riveting and welding to change detachable screw connection into non-detachable screw connection. In a non-removable anti-loosening solution, the fastener cannot be reused. And the anti-loosening device is troublesome to operate and is often used in certain important occasions requiring high anti-loosening performance and not needing to be disassembled. The anti-loosening purpose by increasing the friction force between the screw threads or between the bolt head and the end surface of the nut is achieved by increasing the friction force. The anti-loosening scheme for increasing the friction force is not limited by space, can be repeatedly disassembled, but has poor reliability. After working for a certain time, the anti-loosening effect can be reduced due to vibration and other reasons.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a locking bolt, simple structure, convenient operation sets up pawl, first locking platform and the locking platform of second through the slope, and the pawl can prevent that the bolt is not hard up with the mutual butt of first locking platform or the locking platform of second.

The utility model provides a check bolt, includes bolt body, locknut and two-way locking spring washer, two-way locking spring washer and locknut install in proper order on the screw thread section of bolt body, the bolt body includes the bolt head, the bolt head top is equipped with the double-screw bolt, and the bolt head is close to double-screw bolt end slope and is equipped with a plurality of first locking platforms, and a plurality of first locking platforms evenly set up along the circumferencial direction of bolt head, locknut bottom slope is equipped with a plurality of second locking platforms, and a plurality of second locking platforms evenly set up along locknut's circumferencial direction, two-way locking spring washer includes the inner circle, the slope of inner circle outside is equipped with a plurality of pawls, the pawl uses the center of inner circle to be radial align to grid as the centre of a circle.

Preferably, the inclination direction of the first anti-loosening table is opposite to the thread turning direction of the bolt body, the inclination direction of the second anti-loosening table is opposite to the inclination direction of the first anti-loosening table, the inclination direction of the pawl is opposite to the thread turning direction of the bolt body, the inclination angle of the pawl is the same as that of the first anti-loosening table, and when the anti-loosening device is used, the pawl is abutted to the first anti-loosening table or the second anti-loosening table, so that the bolt body or the locknut can be prevented from loosening.

Preferably, the abutting ends of the first anti-loosening table and the second anti-loosening table with the pawl are right angles, so that when the pawl abuts against the first anti-loosening table or the second anti-loosening table, the bolt body or the anti-loosening nut is not easy to loosen.

The utility model discloses still including other subassemblies that can make this check bolt normal use, be the conventional technical means in this field. In addition, the device or the component which is not limited in the utility model adopts the conventional technical means in the field.

The utility model discloses during the use, fix locknut's one end on the connector, with bolt body and locknut threaded connection to overlap two-way locking spring washer on the bolt body, make the mutual butt of pawl and the first locking platform of two-way locking spring washer, can prevent that the bolt body from rotating.

The bottom of the bolt body is fixed on the connector, the bolt body is in threaded connection with the locknut, the bidirectional locking spring washer is sleeved on the bolt body, the pawl of the bidirectional locking spring washer is abutted against the second locking platform, and the locknut can be prevented from rotating.

The beneficial effects of the utility model are that simple structure, convenient operation sets up pawl, first locking platform and the locking platform of second through the slope, and the mutual butt of pawl and first locking platform or the locking platform of second can prevent that the bolt is not hard up.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a top view of the bi-directional locking spring washer of FIG. 1;

fig. 3 is a bottom view of the locknut of fig. 1.

Detailed Description

The present invention will be described more clearly with reference to the accompanying drawings and specific embodiments in the embodiments of the present invention, and the description herein is only for explaining the present invention, but not for limiting the present invention. Based on the embodiments of the present invention, any modifications, equivalent replacements, improvements, etc. made by other embodiments obtained by those skilled in the art without creative efforts should be included in the protection scope of the present invention.

Examples

As shown in fig. 1 to 3, a check bolt includes a bolt body 3, a check nut 6 and a bidirectional locking spring washer 4, the bidirectional locking spring washer 4 and the check nut 6 are sequentially installed on a thread section of the bolt body 3, the bolt body 3 includes a bolt head 1, a stud is arranged on the top end of the bolt head 1, a plurality of first check platforms 2 are obliquely arranged on the bolt head 1 near the end of the bolt head, the first check platforms 2 are uniformly arranged along the circumferential direction of the bolt head 1, a plurality of second check platforms 5 are obliquely arranged at the bottom of the check nut 6, the second check platforms 5 are uniformly arranged along the circumferential direction of the check nut 6, the bidirectional locking spring washer 4 includes an inner ring, a plurality of pawls 7 are obliquely arranged on the outer side of the inner ring, and the pawls 7 are radially and uniformly arranged by taking the center of the inner ring as the center of the circle.

The inclination direction of the first anti-loosening table 2 is opposite to the thread turning direction of the bolt body 3, the inclination direction of the second anti-loosening table 5 is opposite to the inclination direction of the first anti-loosening table 2, the inclination direction of the pawl 7 is opposite to the thread turning direction of the bolt body 3, the inclination angle of the pawl 7 is the same as that of the first anti-loosening table 2, and in use, the pawl 7 is abutted against the first anti-loosening table 2 or the second anti-loosening table 5, so that the bolt body 3 or the anti-loosening nut 6 can be prevented from loosening.

The abutting ends of the first locking platform 2 and the second locking platform 5 and the pawl 7 are right angles, so that when the pawl 7 abuts against the first locking platform 2 or the second locking platform 5, the bolt body 3 or the locknut 6 is not easy to loosen.

The utility model discloses during the use, fix locknut 6's one end on the connector, with bolt body 3 and locknut 6 threaded connection to overlap two-way locking spring washer 4 on bolt body 3, make the pawl 7 and the 2 mutual butts of first locking platform of two-way locking spring washer 4, can prevent that bolt body 3 from rotating.

The bottom of the bolt body 3 is fixed on the connecting piece, the bolt body 3 is in threaded connection with the locknut 6, and the bidirectional locking spring washer 4 is sleeved on the bolt body 3, so that the pawl 7 of the bidirectional locking spring washer 4 is abutted to the second locking platform 5, and the locknut 6 can be prevented from rotating.

The foregoing description of the embodiments of the invention has been presented for purposes of illustration and not limitation, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments.

Claims

1. The utility model provides a check bolt, includes bolt body, locknut and two-way locking spring washer, its characterized in that: the bidirectional locking spring washer and the locknut are sequentially installed on the thread section of the bolt body, the bolt body comprises a bolt head, the top end of the bolt head is provided with a stud, the bolt head is close to the stud end and is obliquely provided with a plurality of first locking platforms, the first locking platforms are uniformly arranged along the circumferential direction of the bolt head, the bottom of the locknut is obliquely provided with a plurality of second locking platforms, the second locking platforms are uniformly arranged along the circumferential direction of the locknut, the bidirectional locking spring washer comprises an inner ring, a plurality of pawls are obliquely arranged on the outer side of the inner ring, and the pawls are radially and uniformly arranged by taking the center of the inner ring as the center of a circle.

2. The check bolt according to claim 1, wherein: the inclination direction of the first anti-loosening table is opposite to the thread turning direction of the bolt body, the inclination direction of the second anti-loosening table is opposite to the inclination direction of the first anti-loosening table, the inclination direction of the pawl is opposite to the thread turning direction of the bolt body, and the inclination angle of the pawl is the same as that of the first anti-loosening table.

3. The lockbolt of claim 2, wherein: the first anti-loosening table and the second anti-loosening table are right-angled to the pawl abutting ends.