CN212615838U

CN212615838U - High-strength anti-loosening bolt

Info

Publication number: CN212615838U
Application number: CN202021392418.9U
Authority: CN
Inventors: 伍燕; 伍茶香; 黄同贺
Original assignee: Anhui Suoyi Information Technology Co ltd
Current assignee: Anhui Suoyi Information Technology Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-02-26
Anticipated expiration: 2030-07-15

Abstract

The utility model belongs to the technical field of the bolt, concretely relates to high-strength anti-loosening bolt, including cylindric bolt head and screw rod, and the bolt head sets firmly in the upper end of screw rod, a hexagonal hole has been seted up at the up end center of bolt head, the outside of bolt head sets firmly has the locating component for strengthen the joint strength of bolt head and fixed material; the locating component comprises a locating ring with an annular structure, a plurality of locating holes axially distributed along the locating ring and locating pins penetrating through the locating holes, the locating ring is fixedly arranged on the outer side of the bolt head, when the bolt is fixedly connected with a fixed material, the locating pins penetrate through the locating holes and extend into the fixed material, the number of the locating holes is 2-4, the locating holes are uniformly distributed on the locating ring, the defects of the prior art are overcome, the locating pins are used for enhancing the connection between the bolt and the fixed material, the bolts are placed to rotate, and the strength and the anti-loosening performance of the bolts are enhanced.

Description

High-strength anti-loosening bolt

Technical Field

The utility model belongs to the technical field of the bolt, concretely relates to high-strength anti-loosening bolt.

Background

The bolt is a mechanical object, a cylindrical threaded fastener matched with a nut, and a fastener composed of a head part and a screw rod (a cylinder with external threads) needs to be matched with the nut and is used for fastening and connecting two objects with through holes. This type of connection is called a bolted connection, where the two parts can be separated if the nut is unscrewed from the bolt, so that the bolted connection is a detachable connection.

In the use process, the bolt is often rotated relative to the fixed material due to collision or vibration, so that looseness is generated and even falls off, and the looseness is often difficult to find in conventional mechanical inspection, so that potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti not hard up bolt of excelling in has overcome prior art's not enough, utilizes the locating pin to strengthen being connected between bolt and the fixed material, places the bolt gyration, has strengthened the intensity and the anti not hard up performance of bolt.

In order to solve the above problems, the utility model adopts the following technical proposal:

a high-strength anti-loosening bolt comprises a cylindrical bolt head and a screw rod, wherein the bolt head is fixedly arranged at the upper end of the screw rod, a hexagonal hole is formed in the center of the upper end face of the bolt head, and a positioning assembly is fixedly arranged on the outer side of the bolt head and used for enhancing the connection strength of the bolt head and a fixed material;

the positioning assembly comprises a positioning ring with an annular structure, a plurality of positioning holes axially distributed along the positioning ring and positioning pins penetrating through the positioning holes, the positioning ring is fixedly arranged on the outer side of the bolt head, and when the bolt is fixedly connected with a fixed material, the positioning pins penetrate through the positioning holes and extend into the fixed material.

Furthermore, the number of the positioning holes is 2-4, and the positioning holes are uniformly distributed on the positioning ring.

Further, the top of locating pin has set firmly a stopper, and the up end of stopper has the cross spiral groove, the locating hole is including being used for holding the stopper and providing the stopper activity space the regulation hole with have the internal screw thread hole, the regulation hole is located the top of screw hole, and the big and screw hole in aperture of regulation hole, the outside of locating pin has the external screw thread with the screw hole adaptation.

Further, a flat washer and an elastic washer are sleeved on the outer side of the screw rod, the elastic washer is located above the flat washer, and the outer diameter of the elastic washer and the outer diameter of the flat washer are consistent with the diameter of the bolt head.

Further, the flat gasket and the elastic gasket are both made of rubber.

Compared with the prior art, the utility model, following beneficial effect has:

the high-strength anti-loosening bolt has a simple structure and a novel design, and the connection between the bolt and a fixed material is enhanced by designing the positioning pin, so that the bolt is placed for rotation, and the strength and anti-loosening performance of the bolt are enhanced; the design regulation hole and screw hole keep the outward appearance of design pleasing to the eye, make things convenient for screwing and dismantling of locating pin, satisfy the needs of production activity.

Drawings

Fig. 1 is a schematic structural view of a high-strength anti-loosening bolt.

Fig. 2 is a schematic cross-sectional view of a positioning assembly in a high-strength anti-loosening bolt.

In the figure: 1. a bolt head; 2. a hexagonal hole; 3. a screw; 4. a flat washer; 5. an elastic washer; 6. a positioning ring; 7. positioning holes; 71. an adjustment hole; 72. a threaded hole; 8. positioning pins; 81. and a limiting block.

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.

As shown in fig. 1-2, the high-strength anti-loosening bolt of the present invention includes a cylindrical bolt head 1 and a cylindrical screw rod 3, wherein the bolt head 1 is fixedly arranged at the upper end of the cylindrical screw rod 3, a hexagonal hole 2 is arranged at the center of the upper end surface of the bolt head 1, and a positioning assembly is fixedly arranged at the outer side of the bolt head 1 for enhancing the connection strength between the bolt head 1 and a fixed material;

the positioning assembly comprises a positioning ring 6 with an annular structure, a plurality of positioning holes 7 axially distributed along the positioning ring 6 and positioning pins 8 penetrating through the positioning holes 7, the positioning ring 6 is fixedly arranged on the outer side of the bolt head 1, and when the bolt is fixedly connected with a fixed material, the positioning pins 8 penetrate through the positioning holes 7 and extend into the fixed material.

During the use, at first with screw rod 3 and fixed material stable connection, then insert a plurality ofly in the locating hole 7 with locating pin 8 in proper order, if fixed material is wooden material, can directly accomplish being connected of locating pin 8 and fixed material with the surface that locating pin 8 inserted fixed material, if fixed material is metal material, then need at first drill at the corresponding position of locating pin 8, carry out screw rod 3's connection again, insert in proper order the hole on fixed material surface with locating pin 8 at last.

In order to improve the stability of bolt connection, the positioning holes 7 are arranged in 2-4 numbers, and the positioning holes 7 are uniformly distributed on the positioning ring 6.

In order to facilitate the installation of the positioning pin 8, a limiting block 81 is fixedly arranged at the top end of the positioning pin 8, a cross-shaped screw groove is formed in the upper end face of the limiting block 81, the positioning hole 7 comprises an adjusting hole 71 and a threaded hole 72, the adjusting hole 71 is used for accommodating the limiting block 81 and providing a movable space for the limiting block 81, the threaded hole 72 is provided with internal threads, the adjusting hole 71 is located above the threaded hole 72, the diameter of the adjusting hole 71 is large and is matched with that of the threaded hole 72, and external threads matched with the; after the screw 3 is fixed, the cross screwdriver is connected with the cross screw groove on the limiting block 81 to drive the limiting block 81 and the positioning pin 8 to rotate, and the threaded connection between the positioning pin 8 and the threaded hole 72 converts the rotation into the movement towards the fixed position until the positioning pin 8 extends into the fixed material.

In order to further improve the looseness resistance of the bolt, a flat washer 4 and an elastic washer 5 are sleeved on the outer side of the screw rod 3, the elastic washer 5 is located above the flat washer 4, the outer diameter of the elastic washer 5 and the outer diameter of the flat washer 4 are consistent with the diameter of the bolt head 1, and the position of a positioning pin 8 cannot be obstructed; the flat gasket 4 and the elastic gasket 5 are both made of rubber.

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 an anti not hard up bolt of excel in, includes cylindric bolt head (1) and screw rod (3), and bolt head (1) sets firmly in the upper end of screw rod (3), a hexagonal hole (2), its characterized in that have been seted up to the up end center department of bolt head (1): the outer side of the bolt head (1) is fixedly provided with a positioning assembly for enhancing the connection strength of the bolt head (1) and a fixed material;

the positioning assembly comprises a positioning ring (6) with an annular structure, a plurality of positioning holes (7) axially distributed along the positioning ring (6) and positioning pins (8) penetrating through the positioning holes (7), the positioning ring (6) is fixedly arranged on the outer side of the bolt head (1), and when the bolt is fixedly connected with a fixed material, the positioning pins (8) penetrate through the positioning holes (7) and extend to the interior of the fixed material.

2. The high-strength anti-loosening bolt according to claim 1, wherein: the number of the positioning holes (7) is 2-4, and the positioning holes (7) are uniformly distributed on the positioning ring (6).

3. The high-strength anti-loosening bolt according to claim 2, wherein: the top of locating pin (8) has set firmly a stopper (81), and the up end of stopper (81) has the cross thread groove, locating hole (7) including be used for holding stopper (81) and provide stopper (81) activity space regulation hole (71) and have internal screw thread hole (72), regulation hole (71) are located the top of screw hole (72), and the aperture of regulation hole (71) big with screw hole (72), the outside of locating pin (8) has the external screw thread with screw hole (72) adaptation.

4. A high-strength anti-loosening bolt according to any one of claims 1 to 3, wherein: the outer side of the screw rod (3) is sleeved with a flat washer (4) and an elastic washer (5), the elastic washer (5) is located above the flat washer (4), and the outer diameter of the elastic washer (5) and the outer diameter of the flat washer (4) are consistent with the diameter of the bolt head (1).

5. The high-strength anti-loosening bolt according to claim 4, wherein: the flat gasket (4) and the elastic gasket (5) are both made of rubber.