CN217713304U

CN217713304U - Vibration-proof bolt and nut structure

Info

Publication number: CN217713304U
Application number: CN202221076070.1U
Authority: CN
Inventors: 朱建军
Original assignee: Quzhou Tianli Fasteners Co ltd
Current assignee: Quzhou Tianli Fasteners Co ltd
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2022-11-01
Anticipated expiration: 2032-05-07

Abstract

The utility model belongs to bolt and nut production field discloses antivibration bolt nut structure, including the bolt body, first spring leaf, first nut, second spring leaf, third spring leaf and second nut, the bolt body comprises block and double-screw bolt, and double-screw bolt and block casting shaping as an organic whole, first spring leaf, first nut, second spring leaf, third spring leaf and second nut from last to cup jointing on the double-screw bolt down in proper order, and first nut and second nut all with double-screw bolt threaded connection, the article is laid between first spring leaf and first nut. Connect fixedly through bolt body and first nut to the article, when twisting first nut, the bolt body is mutually supported with the article, can extrude the first briquetting of inlaying on the bolt body and imbed first spring leaf, and the first damping piece that first spring leaf lower surface set up can closely laminate with the article for the article is receiving when vibration interference, increases and is difficult to rock with the friction of first spring leaf.

Description

Vibration-proof bolt and nut structure

Technical Field

The utility model relates to a bolt and nut production technical field, more specifically say, relate to antivibration bolt and nut structure.

Background

The nut is a nut, and is a part which is screwed together with a bolt or a screw rod and used for fastening, and all production and manufacturing machines are required to be used as original parts. The variety of the nuts is various, and the common nuts have national standard, english standard, american standard and Japanese standard. The nut is divided into carbon steel, high-strength, stainless steel, plastic steel and other types according to different materials.

When the existing bolt and nut are used, the existing bolt and nut can be subjected to oscillation impact due to interference of external factors, gaps among the bolt, the nut and the fixed object can be increased, the position of the nut can be deviated, the fixing effect of the object is poor, the existing bolt and nut are easy to shake when being used, and actual fixing and connection of the object are not facilitated.

To the above problem, the utility model provides a antivibration bolt nut structure.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

An object of the utility model is to provide a antivibration bolt nut structure to solve the problem that proposes among the above-mentioned background art.

2. Technical scheme

Anti-vibration bolt nut structure, including bolt body, first spring leaf, first nut, second spring leaf, third spring leaf and second nut, the bolt body comprises block and double-screw bolt, and double-screw bolt and block cast moulding as an organic whole, first spring leaf, first nut, second spring leaf, third spring leaf and second nut from last to cup jointing on the double-screw bolt down in proper order, and first nut and second nut all with double-screw bolt threaded connection, the article is laid between first spring leaf and first nut, the lower fixed surface of block is provided with a plurality of first briquetting of inlaying, the lower fixed surface of first spring leaf is provided with a plurality of first damping pieces, the last fixed surface of second spring leaf is provided with a plurality of second damping pieces.

Preferably, the plurality of first embedding blocks, the plurality of first damping blocks and the plurality of second damping blocks are distributed in a circular array, and the first embedding blocks are in a conical structure.

Preferably, a plurality of second embedded pressing blocks are fixedly arranged on the upper surface of the third spring piece, the second embedded pressing blocks are distributed in a circular array, the second embedded pressing blocks are of a conical structure, and the third spring piece and the second embedded pressing blocks are integrally cast and formed.

Preferably, the cap and the first embedded pressing block, the first spring piece and the first damping block, and the second spring piece and the second damping block are all integrally cast.

Preferably, two limiting grooves are formed in the lower surface of the cap, two guide posts are fixedly mounted on the upper surface of the first spring plate, and the guide posts are in sliding fit with the inner walls of the limiting grooves.

Preferably, the depth of the limiting groove is 1.5 times of the length of the guide post, and the top end of the guide post is provided with the guide groove.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

1. connect fixedly through bolt body and first nut to the article, when twisting and move first nut, the bolt body is mutually supported with the article, can extrude the first piece of spring of inlaying briquetting embedding on the bolt body, and the first damping piece that first spring leaf lower surface set up can closely laminate with the article for the article is receiving when the vibration interference, increases and is difficult to rock with the friction of first spring leaf, can reduce the adverse effect of vibration to the article as far as possible.

2. Move the second nut through twisting, can drive third spring leaf extrusion second spring leaf, second spring leaf extrusion first nut for during second on the third spring leaf inlays the briquetting embedding second spring leaf, the increase of second damping piece on the second spring leaf and the friction of first nut, make the fixed back of article, the gap between bolt body, first nut and the article is difficult to increase because of the vibration, has further ensured the stability after the article is fixed.

Drawings

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

fig. 2 is a schematic structural view of the bolt body of the present invention;

FIG. 3 is a schematic view of a first spring plate according to the present invention;

FIG. 4 is a schematic view of a second spring plate according to the present invention;

fig. 5 is a schematic structural view of a third spring plate of the present invention.

The numbering in the figures illustrates: 1. a bolt body; 2. a first spring plate; 3. a first nut; 4. a second spring plate; 5. a third spring plate; 6. a second nut; 7. a first embedded pressure block; 8. a first damping block; 9. a second damping block; 10. a second embedded pressure block; 11. a guide post; 12. a limiting groove.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like, are to be interpreted broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Referring to fig. 1-5, the present invention provides a technical solution:

the anti-vibration bolt nut structure comprises a bolt body 1, a first spring piece 2, a first nut 3, a second spring piece 4, a third spring piece 5 and a second nut 6, the bolt body 1 is composed of a cover cap and a stud, the stud and the cover cap are integrally cast, the first spring piece 2, the first nut 3, the second spring piece 4, the third spring piece 5 and the second nut 6 are sequentially sleeved on the stud from top to bottom, the first nut 3 and the second nut 6 are both in threaded connection with the stud, an object is placed between the first spring piece 2 and the first nut 3, a first embedded pressing block 7 of eight conical structures is fixedly arranged on the lower surface of the cover cap, six first damping blocks 8 are fixedly arranged on the lower surface of the first spring piece 2, six second damping blocks 9 are fixedly arranged on the upper surface of the second spring piece 4, the eight first embedded pressing blocks 7, the six first damping blocks 8 and the six second damping blocks 9 are both distributed in a circular array mode, the cover cap and the first embedded pressing block 7, the first embedded pressing block 2 and the first embedded pressing block 8 are not easy to be connected with the first spring piece 2, and the first embedded pressing block 7 can be tightly connected with the first spring piece when the first nut 3 and the first nut 2 are tightly pressed, and the first damping block 3, and the first nut 3 are tightly pressed piece, and the first nut can be connected with the first spring piece, and the first damping block 2, and the first damping block 2.

Furthermore, the fixed surface of third spring leaf 5 is provided with the second of eight tapered structures and inlays briquetting 10, eight second inlays briquetting 10 and is the circular array distribution, third spring leaf 5 and second inlay briquetting 10 cast moulding as an organic whole, twist and move second nut 6 and drive third spring leaf 5 extrusion second spring leaf 4, second spring leaf 4 extrusion first nut 3, make second on the third spring leaf 5 inlay briquetting 10 and imbed in second spring leaf 4, second damping piece 9 on the second spring leaf 4 and the increase of first nut 3 friction, make the article fix the back, bolt body 1, the gap between first nut 3 and the article is difficult to increase because of the vibration.

Further, two spacing grooves 12 have been seted up to the block lower surface, fixed surface installs two guide posts 11 on 2 first spring pieces,

guide post

11 and 12 inner walls sliding fit of spacing groove, the degree of depth of spacing groove 12 is 1.5 times of 11 length sizes of guide post, the guide groove has been seted up on the top of guide post 11, the design makes that first spring piece 2 can be better be connected with the block like this, prevent that first spring piece 2 from rotating at will and the skew that causes.

The components referred to in the present invention are prior art and can be implemented completely by those skilled in the art without redundancy, nor does the present invention relate to improvements to the internal structure and method.

The working principle is as follows: the bolt body 1 is inserted into corresponding holes formed in a plurality of objects to be connected, the first spring piece 2 is placed at the joint of the cap and the objects, the guide column 11 on the first spring piece 2 is inserted into the limiting groove 12 formed in the cap, the first nut 3 is screwed, the first nut is matched with the bolt body 1 to fix the objects, the first nut 3 is continuously screwed by a wrench, the cap continuously extrudes the first spring piece 2, the first embedded pressing block 7 on the first spring piece is forced to be embedded into the first spring piece 2, the first damping block 8 arranged on the lower surface of the first spring piece 2 can be tightly attached to the objects, the second nut 6 is screwed, the third spring piece 5 can be driven to extrude the second spring piece 4, the second spring piece 4 extrudes the first nut 3, the second embedded pressing block 10 on the third spring piece 5 is embedded into the second spring piece 4, the friction between the second damping block 9 on the second spring piece 4 and the first nut 3 is increased, and the objects are fixed after the objects are fixed, and the gap between the bolt body 1 and the objects is not easy to increase due to vibration, and the objects are stable and the objects are guaranteed.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Antivibration bolt nut structure, its characterized in that: the bolt comprises a bolt body (1), a first spring piece (2), a first nut (3), a second spring piece (4), a third spring piece (5) and a second nut (6), wherein the bolt body (1) consists of a cover cap and a stud, the stud and the cover cap are integrally cast and formed, the first spring piece (2), the first nut (3), the second spring piece (4), the third spring piece (5) and the second nut (6) are sequentially sleeved on the stud from top to bottom, the first nut (3) and the second nut (6) are both in threaded connection with the stud, an object is placed between the first spring piece (2) and the first nut (3), a plurality of first embedded pressing blocks (7) are arranged on the lower surface fixing of the cover cap, a plurality of first damping blocks (8) are arranged on the lower surface fixing of the first spring piece (2), and a plurality of second damping blocks (9) are arranged on the upper surface fixing of the second spring piece (4).

2. The vibration-proof bolt and nut structure according to claim 1, characterized in that: the damping device is characterized in that the first embedding blocks (7), the first damping blocks (8) and the second damping blocks (9) are distributed in a circular array, and the first embedding blocks (7) are of a conical structure.

3. The vibration-proof bolt and nut structure according to claim 1, characterized in that: the upper surface of the third spring piece (5) is fixedly provided with a plurality of second embedded pressing blocks (10), the second embedded pressing blocks (10) are distributed in a circular array mode, the second embedded pressing blocks (10) are of a conical structure, and the third spring piece (5) and the second embedded pressing blocks (10) are integrally cast and formed.

4. The vibration-proof bolt and nut structure according to claim 1, characterized in that: the cover cap, the first embedded pressing block (7), the first spring piece (2), the first damping block (8), the second spring piece (4) and the second damping block (9) are all integrally cast and formed.

5. The vibration-proof bolt and nut structure according to claim 1, characterized in that: two limiting grooves (12) are formed in the lower surface of the cap, two guide columns (11) are fixedly mounted on the upper surface of the first spring piece (2), and the guide columns (11) are in sliding fit with the inner walls of the limiting grooves (12).

6. The vibration-proof bolt and nut structure according to claim 5, characterized in that: the depth of the limiting groove (12) is 1.5 times of the length of the guide post (11), and the guide groove is formed in the top end of the guide post (11).