CN214367144U

CN214367144U - Novel high-strength anti-loosening fastener

Info

Publication number: CN214367144U
Application number: CN202023270877.2U
Authority: CN
Inventors: 仝伟; 宋宁宁; 茆顺壮; 刘学东; 李涛; 徐发春
Original assignee: Jiangsu Yiding Electric Power Technology Co ltd
Current assignee: Jiangsu Yiding Electric Power Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-10-08
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a novel high strength locking fastener, including shank of bolt, nut and bolt head, the lateral wall threaded connection of shank of bolt has the nut, the top fixedly connected with bolt head of shank of bolt, the inside on bolt head top is provided with additional strengthening, connecting nut's bottom fixedly connected with second bolt. The utility model discloses a be provided with stable connection structure and realized the extension to this fastener, when the great shank of bolt of part thickness can't pass the part, insert the shank of bolt behind the part preformed hole, insert the inside of internal thread groove and carry out threaded connection with first bolt again, take out another group's fastener afterwards, and carry out threaded connection with the first bolt of another fastener and second bolt, make two sets of fasteners connect through stable connection structure, use the nut to fix respectively the both sides in part preformed hole afterwards, thereby make the part of different thickness can be connected to this fastener.

Description

Novel high-strength anti-loosening fastener

Technical Field

The utility model relates to a fastener technical field specifically is a novel high strength locking fastener.

Background

In the industrial production process, different parts are required to be assembled to enable the parts to cooperate with each other, and in order to enable the parts to be connected more stably, special mechanical parts are often adopted to connect, so that the different parts can be connected tightly, and special fasteners are used;

however, when the fastener that has now on the market is using, because part size difference, thickness are different, and probably shorter when the part fastener that is too thick, this fastener can't normally connect, need turn over to find the fastener that length is suitable just can carry out the connection between the part and lead to work efficiency greatly reduced, so now develop a novel high strength locking fastener to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel high strength locking fastener to it can not be effectual to carrying out the problem of connecting between the thick part to propose ordinary fastener in the above-mentioned background art to solve.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel high strength anti-loosening fastener, includes shank of bolt, nut and bolt head, the lateral wall threaded connection of shank of bolt has the nut, the top fixedly connected with bolt head of shank of bolt, the inside on bolt head top is provided with additional strengthening, the top of shank of bolt lateral wall is provided with anti-skidding structure, the inside at shank of bolt both ends is provided with stabilizes connection structure, stabilize connection structure and include inflation groove, internal thread groove, first bolt, connecting nut and second bolt, the inside fixed connection at the lateral wall of inflation groove and shank of bolt lateral wall both ends, the inside bottom of shank of bolt is provided with the internal thread groove, the inside threaded connection of internal thread groove has first bolt, and the bottom fixedly connected with connecting nut of first bolt, connecting nut's bottom fixedly connected with second bolt.

Preferably, the additional strengthening includes interior hexagonal groove, arc chamfer and dull polish layer, the lateral wall of interior hexagonal groove and the inside top fixed connection of bolt head, the outside of bolt head is provided with the arc chamfer, the lateral wall of bolt head is provided with the dull polish layer.

Preferably, the inner hexagonal groove is located at the position of the vertical center line of the bolt head, and the arc chamfers are annularly distributed on the outer side of the bolt head.

Preferably, the anti-skidding structure includes spacing groove, anti-skidding gasket and fixed lug, the top of spacing groove and the bottom fixed connection of bolt head, the lateral wall of spacing groove runs through anti-skidding gasket, the bottom fixed connection of anti-skidding gasket has fixed lug.

Preferably, the cross-sectional area of the inner diameter of the anti-slip gasket is smaller than the cross-sectional area of the outer diameter of the bolt rod, and the fixing lugs are distributed at the bottom end of the anti-slip gasket in an annular shape.

Preferably, the first bolt and the second bolt are symmetrically distributed about a horizontal center line of the connecting nut, threads on outer side walls of the first bolt and the second bolt are opposite, and a threaded connection structure is formed between the inner thread groove and the inside of the first bolt.

Compared with the prior art, the beneficial effects of the utility model are that: the novel high-strength anti-loosening fastener not only realizes the extension of the fastener, so that the fastener can be connected with parts with different thicknesses, but also simultaneously realizes the function enhancement of the bolt head, prevents the bolt head from being incapable of normally taking out the bolt rod after being accidentally damaged, improves the convenience of the fastener and ensures that the fastener is more convenient to use;

(1) the fastener is extended by the stable connection structure, when a bolt rod with larger part thickness cannot penetrate through a part, the bolt rod is inserted into a part reserved hole, then a first bolt is inserted into the inner thread groove and is in threaded connection, then another group of fasteners are taken out, a first bolt of another fastener is in threaded connection with a second bolt, two groups of fasteners are connected through the stable connection structure, and then two sides of the part reserved hole are fixed by nuts respectively, so that the fasteners can be connected with parts with different thicknesses;

(2) the bolt head is strengthened by the aid of the strengthening structure, the edge angle of the outer side of the bolt head is set to be the arc-shaped chamfer, the arc-shaped chamfer has a certain radian, so that damage of a wrench to the bolt head can be reduced, if the arc-shaped chamfer is damaged, the fastener can be fixed by the aid of the hexagon wrench due to the fact that the inner hexagon groove is formed in the top end of the inner part of the bolt head, and accordingly, the bolt rod cannot be normally taken out after the bolt head is accidentally damaged;

(3) the fastener has the advantages that the fastener is convenient to use, the antiskid gasket is sleeved on the outer side wall of the limiting groove, so that the antiskid gasket cannot be taken out easily, the antiskid gasket does not need to be installed when the fastener is installed relative to a common fastener, the friction force between the surface of a part and the fixed lug can be effectively increased by the fixed lug, the fastener cannot slide easily, and the fastener is convenient to use.

Drawings

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

fig. 2 is a schematic side view of the cross-sectional structure of the present invention;

fig. 3 is a schematic top view of the reinforcing structure of the present invention;

fig. 4 is a schematic view of the front view cross-sectional structure of the anti-slip structure of the present invention.

In the figure: 1. a bolt shank; 2. a nut; 3. a bolt head; 4. a reinforcing structure; 401. an inner hexagonal groove; 402. arc chamfering; 403. sanding layer; 5. an anti-slip structure; 501. a limiting groove; 502. an anti-slip gasket; 503. fixing the bump; 6. a stable connection structure; 601. an expansion tank; 602. an internal thread groove; 603. a first bolt; 604. a connecting nut; 605. and a second bolt.

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. 1-4, the present invention provides an embodiment: a novel high-strength anti-loosening fastener comprises a bolt rod 1, a nut 2 and a bolt head 3, wherein the outer side wall of the bolt rod 1 is in threaded connection with the nut 2, the top end of the bolt rod 1 is fixedly connected with the bolt head 3, a reinforcing structure 4 is arranged inside the top end of the bolt head 3, an anti-skidding structure 5 is arranged on the top end of the outer side wall of the bolt rod 1, and stable connecting structures 6 are arranged inside two ends of the bolt rod 1;

the reinforcing structure 4 comprises an inner hexagonal groove 401, an arc-shaped chamfer 402 and a frosted layer 403, the outer side wall of the inner hexagonal groove 401 is fixedly connected with the top end of the inside of the bolt head 3, the arc-shaped chamfer 402 is arranged on the outer side of the bolt head 3, the frosted layer 403 is arranged on the outer side wall of the bolt head 3, the inner hexagonal groove 401 is located at the position of the vertical center line of the bolt head 3, and the arc-shaped chamfers 402 are annularly distributed on the outer side of the bolt head 3;

specifically, as shown in fig. 1, 2 and 3, when the mechanism is used, firstly, when the bolt head 3 is rotated by a wrench, the edges and corners of the bolt head 3 are easily worn or even deformed, so that the edges and corners of the outer side of the bolt head 3 are set to be arc-shaped chamfers 402, when the wrench is over-stressed, the damage of the wrench to the bolt head 3 can be reduced due to the arc-shaped chamfers 402 having a certain radian, and if the bolt head 3 cannot be normally screwed by the wrench due to the damage of the arc-shaped chamfers 402, the fastener can be fixed by using a hexagonal wrench through the inner hexagonal groove 401 because the inner hexagonal groove 401 is formed at the top end inside the bolt head 3, so that the bolt head 3 cannot be normally taken out of the bolt rod 1 after being accidentally damaged;

the anti-skid structure 5 comprises a limiting groove 501, an anti-skid gasket 502 and a fixing lug 503, the top end of the limiting groove 501 is fixedly connected with the bottom end of the bolt head 3, the anti-skid gasket 502 penetrates through the outer side wall of the limiting groove 501, the fixing lug 503 is fixedly connected with the bottom end of the anti-skid gasket 502, the cross-sectional area of the inner diameter of the anti-skid gasket 502 is smaller than that of the outer diameter of the bolt rod 1, and the fixing lugs 503 are distributed at the bottom end of the anti-skid gasket 502 in an annular shape;

specifically, as shown in fig. 1 and fig. 2, when the mechanism is used, firstly, the anti-slip gasket 502 is sleeved on the outer side wall of the limiting groove 501, so that the anti-slip gasket 502 and the fastening member cannot be easily taken out, compared with a common fastening member, the fastening member does not need to be provided with the anti-slip gasket 502 during installation, and the fixing bump 503 at the bottom end of the anti-slip gasket 502 can effectively increase the friction force between the surface of the part and the fixing bump 503, so that the fastening member cannot easily slide, and the fastening member is more convenient to use;

the stable connection structure 6 comprises an expansion groove 601, an internal thread groove 602, a first bolt 603, a connection nut 604 and a second bolt 605, wherein the outer side wall of the expansion groove 601 is fixedly connected with the inner parts of the two ends of the outer side wall of the bolt rod 1, the internal thread groove 602 is arranged at the bottom end of the inner part of the bolt rod 1, the internal thread of the internal thread groove 602 is connected with the first bolt 603, the bottom end of the first bolt 603 is fixedly connected with the connection nut 604, the bottom end of the connection nut 604 is fixedly connected with the second bolt 605, the first bolt 603 and the second bolt 605 are symmetrically distributed about the horizontal central line of the connection nut 604, the threads on the outer side walls of the first bolt 603 and the second bolt are opposite, and the internal thread groove 602 is in threaded connection with the inside of the first bolt 603;

specifically, as shown in fig. 1 and 2, when the mechanism is used, first, when the bolt bar 1 having a large part thickness cannot pass through the part, the bolt bar 1 is inserted into the part prepared hole, then the first bolt 603 is inserted into the inside of the internal thread groove 602 and is screwed, then another set of fasteners is taken out, the first bolt 603 and the second bolt 605 of the other fastener are screwed, so that the two sets of fasteners are connected by the stable connection structure 6, and then both sides of the part prepared hole are fixed by the nuts 2, respectively, so that the fasteners can be connected with parts having different thicknesses.

The working principle is as follows: when the utility model is used, firstly, when the fastener is needed to fix a part, the bolt bar 1 is vertically inserted into the preformed hole of the part, then the nut 2 is used to carry out threaded connection from the bottom end of the bolt bar 1, and the wrench and other tools are used to clamp the bolt head 3 to fix the fastener, when the wrench rotates the bolt head 3, the edges and corners of the bolt head 3 are easy to be worn or even deformed, therefore, the edges and corners at the outer side of the bolt head 3 are set to be the arc chamfers 402, when the wrench is forced too much, because the arc chamfers 402 have a certain radian, the injury of the wrench to the bolt head 3 is reduced, meanwhile, the outer side wall of the bolt head 3 is provided with the frosted layer, the friction force between the wrench and the bolt head 3 is increased to prevent the wrench from sliding teeth, if the arc chamfers 403 are damaged, and the wrench can not normally tighten the bolt head 3, under the condition that the arc-shaped chamfer 402 is damaged due to the fact that the inner hexagonal groove 401 is formed in the top end of the inner portion of the bolt head 3, the fastener can be fixed through the inner hexagonal groove 401 by using a hexagonal wrench;

secondly, as the fastener is continuously screwed, the top end of the anti-skid gasket 502 is tightly attached to the bottom end of the bolt head 3, the fixing lug 503 at the bottom end of the anti-skid gasket is gradually tightly attached to the surface of the part, the friction force between the fixing lug 503 and the part is gradually increased along with the screwing of the fastener, so that the fastener cannot easily slide, and meanwhile, the anti-skid gasket 502 is sleeved on the outer side wall of the limiting groove 501, so that the anti-skid gasket 502 and the fastener cannot be easily taken out;

finally, when the bolt rod 1 with larger part thickness can not pass through the part, the bolt rod 1 is inserted into the part prepared hole, then the first bolt 603 is inserted into the inner thread groove 602 and is in threaded connection, the bolt rod 1 is fixed in the prepared hole as the first bolt 603 continuously penetrates into the inner thread groove 602 and begins to expand outwards along the expansion groove 601, so that the gap between the outer side wall of the bolt rod 1 and the prepared hole is blocked, and then the other group of fasteners are taken out, and the first bolt 603 of the other fastener is screwed with the second bolt 605 after being installed, so that the two groups of fasteners are connected through the stable connecting structure 6, because the thread directions of the first bolt 603 and the second bolt 605 are opposite, the two groups of fasteners cannot be loosened easily, and then the two sides of the part preformed hole are fixed by using the nuts 2 respectively, so that the installation work of the novel high-strength anti-loosening fastener is finished finally.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a novel high strength check fastener, includes shank of bolt (1), nut (2) and bolt head (3), its characterized in that: the outer side wall of the bolt rod (1) is in threaded connection with a nut (2), the top end of the bolt rod (1) is fixedly connected with a bolt head (3), a reinforcing structure (4) is arranged inside the top end of the bolt head (3), an anti-skidding structure (5) is arranged on the top end of the outer side wall of the bolt rod (1), stable connecting structures (6) are arranged inside two ends of the bolt rod (1), each stable connecting structure (6) comprises an expansion groove (601), an internal thread groove (602), a first bolt (603), a connecting nut (604) and a second bolt (605), the outer side wall of the expansion groove (601) is fixedly connected with the inside of two ends of the outer side wall of the bolt rod (1), the bottom end of the inside of the bolt rod (1) is provided with an internal thread groove (602), the internal thread of the internal thread groove (602) is connected with a first bolt (603), and the bottom end of the first bolt (603) is fixedly connected with a connecting nut (604), the bottom end of the connecting nut (604) is fixedly connected with a second bolt (605).

2. The novel high strength check fastener of claim 1, wherein: the reinforced structure (4) comprises an inner hexagonal groove (401), an arc-shaped chamfer (402) and a frosted layer (403), the outer side wall of the inner hexagonal groove (401) is fixedly connected with the top end of the interior of the bolt head (3), the outer side of the bolt head (3) is provided with the arc-shaped chamfer (402), and the outer side wall of the bolt head (3) is provided with the frosted layer (403).

3. The novel high-strength anti-loose fastener as claimed in claim 2, wherein: the inner hexagonal groove (401) is located at the position of the vertical center line of the bolt head (3), and the arc-shaped chamfers (402) are annularly distributed on the outer side of the bolt head (3).

4. The novel high strength check fastener of claim 1, wherein: anti-skidding structure (5) are including spacing groove (501), anti-skidding gasket (502) and fixed lug (503), the top of spacing groove (501) and the bottom fixed connection of bolt head (3), the lateral wall of spacing groove (501) runs through anti-skidding gasket (502), the bottom fixedly connected with fixed lug (503) of anti-skidding gasket (502).

5. The novel high strength check fastener of claim 4, wherein: the cross-sectional area of the inner diameter of the anti-skid gasket (502) is smaller than that of the outer diameter of the bolt rod (1), and the fixing lugs (503) are distributed at the bottom end of the anti-skid gasket (502) in an annular shape.

6. The novel high strength check fastener of claim 1, wherein: the first bolt (603) and the second bolt (605) are symmetrically distributed about the horizontal center line of the connecting nut (604), the threads on the outer side walls of the first bolt and the second bolt are opposite, and the inner thread groove (602) and the inside of the first bolt (603) are in a threaded connection structure.