CN219413215U

CN219413215U - Flat washer with anti-loosening structure

Info

Publication number: CN219413215U
Application number: CN202320673772.6U
Authority: CN
Inventors: 李德进; 张德华; 侯媛媛; 张延胜
Original assignee: Liaocheng Guangli Machinery Parts Co ltd
Current assignee: Liaocheng Guangli Machinery Parts Co ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-07-25
Anticipated expiration: 2033-03-30

Abstract

The utility model relates to the technical field of fasteners and discloses a flat gasket with a locking structure, which comprises a bolt, wherein a nut is connected to the outer side of the middle of the bolt in a threaded manner, a fixed block is fixedly connected to the bottom end of the nut, a cavity is formed in the fixed block, an inserting block is connected to the inside of the cavity in a sliding manner, limit grooves are formed in four corners of the outer side of the inserting block, a plurality of uniformly distributed mounting grooves are formed in one side of the inner side wall of the cavity, springs are fixedly connected to the inner side wall of each mounting groove, a limiting block is fixedly connected to the other end of each spring, an upper gasket is fixedly connected to the bottom end of each inserting block, and telescopic rods are arranged in the springs. According to the utility model, the limiting block is pushed to extend into the limiting groove by the pushing force of the spring, so that the insert block is connected with the fixed block, and the nut is prevented from loosening due to rotation caused by vibration by the cooperation of the limiting block, the limiting groove, the upper gasket and the lower gasket.

Description

Flat washer with anti-loosening structure

Technical Field

The utility model relates to the technical field of fasteners, in particular to a flat washer with an anti-loosening structure.

Background

Flat washers are generally thin pieces of various shapes for reducing friction, preventing leakage, isolating, preventing loosening or distributing pressure. Such components are found in many materials and structures for performing a variety of similar functions. The bearing surface of the fastening piece such as a bolt is not large due to the material and process limitation of the threaded fastening piece, so that the surface of the connected piece is protected by reducing the compressive stress of the bearing surface, and a gasket is adopted. In order to prevent the loosening of the connecting pair, a locking spring washer, a multi-tooth locking washer, a round nut locking washer, a saddle-shaped, wave-shaped and cone-shaped elastic washer are adopted, and the locking spring washer is mainly used for reducing pressure intensity, and when the axial force of tightening a part is very large, the washer is easy to be pressed into a disc shape, and the locking spring washer can be solved by using materials and improving hardness.

It is usually placed between the nut and the connected parts to prevent the nut from loosening during use, and the nut with its top fixed may often rotate due to external vibration while the flat washer is usually smooth on both sides, so that the friction between the washer and the nut may be too small to allow the nut to loosen due to vibration.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a flat gasket with an anti-loosening structure.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a plain washer with locking structure that moves, includes the bolt, bolt middle part outside threaded connection has the nut, nut bottom fixedly connected with fixed block, the cavity has been seted up to the inside cavity that has of fixed block, the inside sliding connection of cavity has the inserted block, the spacing groove has all been seted up in inserted block outside four corners, a plurality of evenly distributed's mounting groove has been seted up to cavity inside wall one side, the equal fixedly connected with spring of mounting groove inside wall, the equal fixedly connected with stopper of spring other end, the gasket is gone up to inserted block bottom fixedly connected with, the inside telescopic link that all is provided with of spring.

As a further description of the above technical solution:

the telescopic link one end is all fixed connection at the mounting groove inside wall, the equal fixed connection of telescopic link other end is close to one side of spring at the stopper.

As a further description of the above technical solution:

the limiting blocks are all in sliding connection inside the limiting grooves.

As a further description of the above technical solution:

the upper gasket bottom fixedly connected with a plurality of evenly distributed's last lug, it is provided with down the gasket to go up the gasket bottom, lower gasket top fixedly connected with a plurality of evenly distributed's lower lug.

As a further description of the above technical solution:

the bottom end of the lower gasket is fixedly connected with a plurality of evenly distributed anti-skid patterns, and the upper protruding blocks are meshed with the lower protruding blocks.

As a further description of the above technical solution:

and an anti-corrosion coating is arranged on the outer side of the nut.

The utility model has the following beneficial effects:

according to the utility model, the nut is screwed on the outer side of the bolt, the insert at the top end of the upper gasket extends into the fixed block at the bottom end of the nut, the limiting groove is aligned with the limiting block, the limiting block is pushed by the pushing force of the spring to extend into the limiting groove, so that the insert is connected with the fixed block, and the nut is prevented from loosening due to rotation of the bolt caused by vibration by the cooperation of the limiting block, the limiting groove, the upper gasket and the lower gasket.

Drawings

FIG. 1 is a front perspective view of a flat washer with anti-loosening structure according to the present utility model;

FIG. 2 is a schematic bottom perspective view of an upper gasket with a flat gasket having an anti-loosening structure according to the present utility model;

fig. 3 is a schematic perspective sectional view of a nut with a flat washer with an anti-loosening structure according to the present utility model.

Legend description:

1. a bolt; 2. a nut; 3. a gasket is arranged on the upper part; 4. a fixed block; 5. an anti-corrosion coating; 6. a lower bump; 7. a bump is arranged; 8. a lower gasket; 9. anti-skid lines; 10. a telescopic rod; 11. a spring; 12. a limiting block; 13. a cavity; 14. a mounting groove; 15. inserting blocks; 16. and a limit groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, one embodiment provided by the present utility model is: the utility model provides a plain washer with locking structure, including bolt 1, bolt 1 middle part outside threaded connection has nut 2, nut 2 bottom fixedly connected with fixed block 4, cavity 13 has been seted up to the inside fixed block 4, cavity 13 inside sliding connection has inserted block 15, utilize fixed block 4, inserted block 15, go up gasket 3, the cooperation of gasket 8 down prevents nut 2 and rotate and make nut 5 become flexible because of vibrations, spacing groove 16 has all been seted up in inserted block 15 outside four corners, a plurality of evenly distributed's mounting groove 14 have been seted up to cavity 13 inside wall one side, the equal fixedly connected with spring 11 of mounting groove 14 inside wall, the equal fixedly connected with stopper 12 of spring 11 other end, utilize the thrust of spring 11 to promote stopper 12 to stretch into spacing groove 16 inside, thereby be connected with fixed block 15 and fixed block 4, inserted block 15 bottom fixedly connected with go up gasket 3, spring 11 inside all is provided with telescopic link 10, screw nut 2 is to the outside of bolt 1, and make the inserted block 15 on the top gasket 3 stretch into the inside fixed block 4 of nut 2 bottom, and make spacing groove 16 and stopper 12 align each other, utilize spring 11 inside 12 to promote the inside of stopper 12, thereby realize spacing groove 16 and the inside of the fixed block 2 is rotated because of the stopper is stretched into with the stopper 16, the inside of the thrust block 12 is realized.

The utility model provides a wear-resisting anti-oxidation coating, including installation groove 14, telescopic link 10 one end all fixed connection is in the inside wall of installation groove 14, telescopic link 10 the other end all fixed connection is in the stopper 12 one side that is close to spring 11, utilize the operation of telescopic link 10 to realize preventing to rotate nut 2 and fixed block 4 and limit block 12 and can move along with together, and pulling spring 11 takes place deformation, stopper 12 all sliding connection is inside spacing groove 16, utilize stopper 12, spacing groove 16, go up gasket 3 and the cooperation of gasket 8 down, realize preventing nut 2 and rotate and make nut 5 become flexible because of vibrations, go up gasket 3 bottom fixedly connected with a plurality of evenly distributed's last lug 7, go up gasket 3 bottom is provided with gasket 8 down, lower gasket 8 top fixedly connected with a plurality of evenly distributed's lower lug 6, utilize fixed block 4, insert 15, go up gasket 3, the cooperation of gasket 8 down prevent nut 2 and make nut 5 become flexible because of vibrations rotate, lower gasket 8 bottom fixedly connected with a plurality of evenly distributed's anti-slip lines 9, go up lug 7 and bump 6 intermesh down, utilize the cooperation realization of last lug 7 and gasket 6 down to increase the frictional force between 3 and gasket 8 down, 2 is provided with anticorrosive coating in the time of using the anti-oxidation coating to prevent nut 2 to make in the time.

Working principle: the lower gasket 8 is sleeved outside the bolt 1, the bolt 1 passes through the upper gasket 3, the upper gasket 3 is placed at the top end of the lower gasket 8, the upper protruding block 7 and the lower protruding block 6 are meshed with each other, the nut 2 is screwed outside the bolt 1, the insert 15 at the top end of the upper gasket 3 stretches into the fixed block 4 at the bottom end of the nut 2, the limiting groove 16 and the limiting block 12 are mutually aligned, the limiting block 12 is pushed to stretch into the limiting groove 16 by the pushing force of the spring 11, the insert 15 is connected with the fixed block 4, the nut 5 is prevented from loosening by rotation of the nut 2 due to vibration by the aid of the matching of the limiting block 12, the limiting groove 16 and the upper gasket 3 with the lower gasket 8, and meanwhile the friction force between the lower gasket 8 and a cap of the bolt 1 is increased by operation of the anti-slip patterns 9 so as to prevent the nut 5 from loosening due to vibration, and oxidation of the nut 2 is prevented by operation of the anti-corrosion coating 5 in long-time use.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a plain washer with locking structure, includes bolt (1), its characterized in that: bolt (1) middle part outside threaded connection has nut (2), nut (2) bottom fixedly connected with fixed block (4), cavity (13) have been seted up to fixed block (4) inside, cavity (13) inside sliding connection has inserted block (15), spacing groove (16) have all been seted up in inserted block (15) outside four corners, a plurality of evenly distributed's mounting groove (14) have been seted up to cavity (13) inside wall one side, the equal fixedly connected with spring (11) of mounting groove (14) inside wall, the equal fixedly connected with stopper (12) of spring (11) other end, insert block (15) bottom fixedly connected with upper shim (3), spring (11) inside all is provided with telescopic link (10).

2. A flat washer with anti-loosening structure as claimed in claim 1, wherein: one end of the telescopic rod (10) is fixedly connected to the inner side wall of the mounting groove (14), and the other end of the telescopic rod (10) is fixedly connected to one side, close to the spring (11), of the limiting block (12).

3. A flat washer with anti-loosening structure as claimed in claim 1, wherein: the limiting blocks (12) are all in sliding connection with the inside of the limiting grooves (16).

4. A flat washer with anti-loosening structure as claimed in claim 1, wherein: the upper gasket (3) bottom fixedly connected with a plurality of evenly distributed upper lug (7), upper gasket (3) bottom is provided with down gasket (8), a plurality of evenly distributed lower lug (6) of lower gasket (8) top fixedly connected with.

5. A flat washer with anti-loosening structure as in claim 4, wherein: the bottom end of the lower gasket (8) is fixedly connected with a plurality of evenly distributed anti-skidding lines (9), and the upper protruding blocks (7) are meshed with the lower protruding blocks (6).

6. A flat washer with anti-loosening structure as claimed in claim 1, wherein: an anti-corrosion coating (5) is arranged on the outer side of the nut (2).