CN112065839A

CN112065839A - High-strength bolt

Info

Publication number: CN112065839A
Application number: CN202010690277.7A
Authority: CN
Inventors: 尤永龙; 朱海平
Original assignee: Wenzhou Metallurgical Machinery Testing Institute
Current assignee: Wenzhou Metallurgical Machinery Testing Institute
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2020-12-11

Abstract

The invention discloses a high-strength bolt, belonging to the technical field of mechanical parts, comprising a bolt head, a screw rod which is integrally formed with the bolt head, and a locking assembly which is sleeved on the outer wall of the screw rod and is positioned at the top of the screw rod, wherein the locking assembly comprises an upper connecting ring which is contacted with the bottom of the bolt head and a lower connecting ring which has the same size with the upper connecting ring, the locking assembly also comprises an elastic part, a limiting hole and a fuse which is used for connecting a plurality of groups of bolt heads, the bolt head is provided with a plurality of groups of limiting holes, and a plurality of groups of limiting holes are equidistantly arranged on the outer wall of the bolt head, the elastic piece can upwards support the bolt, the connection strength is effectively improved, the stretching direction of one end of the fuse is the screwing direction of the bolt head where the fuse is positioned, the bolt loosening and falling phenomena can be effectively prevented, the service life of the machine is prolonged, and the personal safety is ensured more safely in the use process of the machine.

Description

High-strength bolt

Technical Field

The invention relates to the technical field of mechanical parts, in particular to a high-strength bolt.

Background

Mechanical parts, cylindrical threaded fasteners fitted with nuts. The fastener is composed of a head part and a screw (a cylinder with external threads), and some fasteners need to be matched with a nut and used for fastening and connecting two parts with through holes. This type of connection is called a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection.

At present, in the industrial field, a plurality of places need to use bolts for fastening and locking, but under the condition of strong vibration, the bolts are likely to loosen, for some blind holes, the service life, the mechanical safety and the personal safety of machinery can be influenced by the loosening of the bolts, and the existing locking bolts in various forms have poor locking effect, are easy to loosen and even fall off, and cause inconvenience for users.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The invention provides a bolt for a motor vehicle, which aims to solve the problem that the service life, the mechanical safety and the personal safety of a machine are affected because the conventional bolt is easy to loosen or even fall off under the condition of strong vibration.

To solve the above technical problem, according to an aspect of the present invention, the present invention provides the following technical solutions:

a high strength bolt which characterized in that: comprises that

The bolt head, with bolt head integrated into one piece's screw rod, cup joint the screw rod outer wall just is located the locking subassembly at screw rod top, the locking subassembly include with the last go-between of bolt head bottom contact and with go up the lower go-between of go-between equidimension, the locking subassembly still includes the elastic component.

The bolt head is provided with a plurality of groups of limiting holes, and the plurality of groups of limiting holes are equidistantly arranged on the outer wall of the bolt head.

As a preferable aspect of the high-strength bolt according to the present invention, wherein: one end of the elastic piece is in contact with the bottom of the upper connecting ring, and the other end of the elastic piece is in contact with the top of the lower connecting ring.

As a preferable aspect of the high-strength bolt according to the present invention, wherein: the cross section of the bolt head is a regular hexagon, each group of limiting holes penetrates through two adjacent sides of the bolt head, and the axis of each group of limiting holes is mutually perpendicular to the axis of the bolt head.

As a preferable aspect of the high-strength bolt according to the present invention, wherein: the bottom of the upper connecting ring and the top of the lower connecting ring are both provided with annular grooves with the same diameter as the elastic piece, and two ends of the elastic piece are respectively positioned in the two groups of grooves.

As a preferable aspect of the high-strength bolt according to the present invention, wherein: the elastic piece is ring-shaped, the elastic piece is a rubber elastic plate, and a plurality of groups of through holes are uniformly formed in the elastic piece.

As a preferable aspect of the high-strength bolt according to the present invention, wherein: the fuses respectively penetrate through inner cavities of the limiting holes in the bolt heads, and the heads and the tails of the fuses are fixedly screwed together.

As a preferable aspect of the high-strength bolt according to the present invention, wherein: and the bottom end of the screw rod is provided with a chamfer.

As a preferable aspect of the high-strength bolt according to the present invention, wherein: the fuse is made of iron materials, and the stretching direction of one end of the fuse is the screwing direction of the bolt head where the fuse is located.

As a preferable aspect of the high-strength bolt according to the present invention, wherein: the screw rod and the anti-loosening assembly are in interference fit.

As a preferable aspect of the high-strength bolt according to the present invention, wherein: the diameter of the upper connecting ring is equal to that of the lower connecting ring.

Compared with the prior art: in the process of screwing in the bolt, the elastic piece is compressed tightly and has the trend of extension all the time, and the elastic piece can up withstand the bolt, effectively improves joint strength, and the tensile direction of fuse one end is the screwing direction of its place bolt head, can prevent effectively that the bolt from taking place not hard up and the emergence of the phenomenon that drops, has improved mechanical life for safety guarantee personal safety more in the machinery use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise. Wherein:

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

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

FIG. 3 is a schematic view of the release assembly of the present invention;

fig. 4 is a schematic view showing the connection of the bolt head of the present invention.

In the figure: 100 bolt heads, 110 limiting holes, 200 screws, 300 anti-loose assemblies, 310 upper connecting rings, 320 elastic pieces, 330 lower connecting rings and 400 fuses.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and it will be apparent to those of ordinary skill in the art that the present invention may be practiced without departing from the spirit and scope of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the drawings, wherein for convenience of illustration, the cross-sectional view of the device structure is not enlarged partially according to the general scale, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The invention provides a high-strength bolt, which is used for improving the service life of machinery, has a simple structure and a better anti-loosening effect in the using process, and please refer to fig. 1-4, wherein the bolt comprises a bolt head 100, a screw 200 integrally formed with the bolt head 100, and an anti-loosening assembly 300 sleeved on the outer wall of the screw 200 and positioned at the top of the screw 200, specifically, the anti-loosening assembly 300 comprises an upper connecting ring 310 contacted with the bottom of the bolt head 100 and a lower connecting ring 330 with the same size as the upper connecting ring 310, and the anti-loosening assembly 300 further comprises an elastic piece 320;

the bolt head 100 is provided with a plurality of groups of limiting holes 110, and the plurality of groups of limiting holes 110 are equidistantly arranged on the outer wall of the bolt head 100;

referring to fig. 3 again, one end of the elastic member 320 contacts the bottom of the upper connection ring 310, and specifically, the other end contacts the top of the lower connection ring 330;

referring to fig. 2 again, the cross section of the bolt head 100 is a regular hexagon, specifically, each group of limiting holes 110 penetrates through two adjacent sides of the bolt head 100, and the axis of each group of limiting holes 110 is perpendicular to the axis of the bolt head 100;

referring to fig. 3 again, in order to prevent the elastic element from falling off, specifically, the bottom of the upper connection ring 310 and the top of the lower connection ring 330 are both provided with annular grooves having the same diameter as the elastic element 320, and two ends of the elastic element 320 are respectively located in the two groups of grooves;

referring to fig. 3 again, in order to prevent the bolt head from loosening, specifically, the elastic member 320 is a circular ring, the elastic member 320 is a rubber elastic plate, and a plurality of groups of through holes are uniformly formed in the elastic member 320;

referring to fig. 2 and 4 again, in order to prevent the bolt head 100 from loosening, specifically, the fuses 400 respectively pass through the inner cavities of the limiting holes 110 on different bolt heads 100, and the fuses 400 are fixedly screwed together end to end;

referring to fig. 1 again, in order to facilitate screwing in the connecting member, specifically, the bottom end of the screw rod 200 is provided with a chamfer;

referring to fig. 4 again, in order to prevent the bolt head 100 from loosening, specifically, the fuse 400 is made of iron, and the stretching direction of one end of the fuse 400 is the screwing direction of the bolt head 100 where the fuse 400 is located;

referring to fig. 1 again, in order to prevent the screw 200 and the anti-loosening assembly 300 from falling off, specifically, the screw 200 and the anti-loosening assembly 300 are in interference fit;

referring again to fig. 3, in order to facilitate connection, specifically, the diameter of the upper connection ring 310 is equal to that of the lower connection ring 330.

When the bolt head 100 is used specifically, the screw rod 200 is screwed into the designated screw hole through the bolt head 100, in the screwing-in process, the elastic piece 320 is compressed and always tends to extend, the elastic piece 320 can upwards prop against the bolt 200, the connection strength is effectively improved, the fuse 400 penetrates into the bolt head 110 according to a specific direction to connect the bolt head 100, the stretching direction of one end of the fuse 400 is the screwing-in direction of the bolt head 100 where the fuse 400 is located, the head end and the tail end of the fuse 400 are screwed in mutually, and the bolt head 100 can be prevented from loosening.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the disclosed embodiments of the invention may be used in any combination, provided that no structural conflict exists, and the combinations are not exhaustively described in this specification merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A high strength bolt which characterized in that: comprises that

The bolt head (100), the screw (200) integrally formed with the bolt head (100), and the anti-loosening assembly (300) sleeved on the outer wall of the screw (200) and located at the top of the screw (200), wherein the anti-loosening assembly (300) comprises an upper connecting ring (310) in contact with the bottom of the bolt head (100) and a lower connecting ring (330) with the same size as the upper connecting ring (310), and the anti-loosening assembly (300) further comprises an elastic piece (320);

the bolt comprises a limiting hole (110) and a fuse (400) used for connecting a plurality of groups of bolt heads (100), wherein the bolt heads (100) are provided with a plurality of groups of limiting holes (110), and the plurality of groups of limiting holes (110) are equidistantly arranged on the outer wall of the bolt heads (100).

2. A high strength bolt according to claim 1, wherein: the elastic member (320) has one end contacting the bottom of the upper connection ring (310) and the other end contacting the top of the lower connection ring (330).

3. A high strength bolt according to claim 1, wherein: the cross section of the bolt head (100) is a regular hexagon, each group of limiting holes (110) penetrates through two adjacent sides of the bolt head (100), and the axis of each group of limiting holes (110) is perpendicular to the axis of the bolt head (100).

4. A high strength bolt according to claim 1, wherein: the bottom of the upper connecting ring (310) and the top of the lower connecting ring (330) are both provided with annular grooves with the same diameter as that of the elastic piece (320), and two ends of the elastic piece (320) are respectively positioned in the two groups of grooves.

5. A high strength bolt according to claim 1, wherein: the elastic piece (320) is in a ring shape, the elastic piece (320) is a rubber elastic plate, and a plurality of groups of through holes are uniformly formed in the elastic piece (320).

6. A high strength bolt according to claim 1, wherein: the fuse (400) respectively penetrates through inner cavities of the limiting holes (110) on different bolt heads (100), and the fuse (400) is fixedly screwed together end to end.

7. A high strength bolt according to claim 1, wherein: the bottom end of the screw rod (200) is provided with a chamfer.

8. A high strength bolt according to claim 1, wherein: the fuse (400) is made of iron materials, and the stretching direction of one end of the fuse (400) is the screwing direction of the bolt head (100) where the fuse is located.

9. A high strength bolt according to claim 1, wherein: the screw (200) and the anti-loosening assembly (300) are in interference fit.

10. A high strength bolt according to claim 1, wherein: the diameter of the upper connection ring (310) is equal to the diameter of the lower connection ring (330).