CN214533964U

CN214533964U - High-strength anti-loosening hexagon bolt

Info

Publication number: CN214533964U
Application number: CN202120157388.1U
Authority: CN
Inventors: 张步军
Original assignee: Haiyan County Machinery Co ltd
Current assignee: Haiyan County Machinery Co ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-10-29
Anticipated expiration: 2031-01-20

Abstract

The utility model discloses a high-strength anti-loosening hexagonal bolt, which comprises a hexagonal bolt head and a screw rod, wherein a strip-shaped groove is arranged on the screw rod along the length direction of the screw rod, the part of the strip-shaped groove far away from the hexagonal bolt head is a placing part I, the cross-sectional shape of the placing part I is a rectangle, the part of the strip-shaped groove close to the hexagonal bolt head is a placing part II, the cross-sectional shape of the placing part II is a sector, an anti-loosening assembly is arranged in the strip-shaped groove and comprises a rotating block and a rotating shaft, the rotating shaft is fixed at the middle position of the strip-shaped groove, the middle of the rotating block is rotatably connected on the rotating shaft, the rotating block comprises a storage part and a pressing part, the cross section of the storage part is a rectangle and has the same size as the placing part I, a thread locking agent is stored in the storage part, the cross section of the storage part is a sector and has the same size as the placing part, the storage part and the pressing part cannot be simultaneously positioned inside the first placing part and the second placing part.

Description

High-strength anti-loosening hexagon bolt

Technical Field

The utility model relates to a fastening bolt technical field especially relates to an anti not hard up hexagon bolt of high strength.

Background

Bolt connection is a very common fastening connection mode in the mechanical field, and is usually fastened by matching bolts and nuts. However, the common bolt and nut are matched, and the looseness can occur after a long time, and especially on machines with vibration such as machine belt transmission and chain transmission, the bolt connection is easy to loosen. If the overhaul is not timely, various adverse consequences can be generated, and potential safety hazards are caused.

In order to prevent looseness in the prior art, a mode of increasing more gaskets is generally adopted, and the gasket is additionally arranged, so that bolt looseness can be relieved to a certain extent, but the effect is not ideal.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an anti not hard up hexagon bolt of high strength has better anti not hard up ability, also is difficult not hard up easily when installing on vibrations machinery to eliminate the potential safety hazard, reduce the possibility that the adverse consequence produced.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides an anti hexagon bolt that moves of high strength, includes hexagon bolt head and screw rod, seted up the bar recess along its length direction on the screw rod, the part that the hexagon bolt head was kept away from to the bar recess is for laying a portion one, the sectional shape of laying a portion one is the rectangle, the part that the bar recess is close to the hexagon bolt head is for laying a portion two, the sectional shape of laying a portion two is fan-shaped, be equipped with anti loose subassembly in the bar recess, anti loose subassembly includes turning block and axis of rotation, the axis of rotation is fixed in the intermediate position of bar recess, the middle swivelling joint of turning block is in the axis of rotation, the turning block includes storage portion and pressing part, the cross-section of storage portion is the rectangle and the size is the same with the portion one of laying, the storage portion has the screw thread locking agent of storing in, the cross-section of pressing part is fan-shaped and the size is the same with the portion of laying two, the storage part and the pressing part cannot be simultaneously positioned inside the first placing part and the second placing part.

According to the technical scheme, before the bolt is installed, the storage part is completely positioned in the first placing part; one half of the pressing part is positioned in the second placing part, and the other half of the pressing part is positioned outside the second placing part. When the bolt was gradually by the screw in threaded hole, the inner wall of screw hole extrudeed the portion of pressing that is in the portion of laying two outsides, will press the whole portion of pressing to impressing in security protection portion two. The splenium is pressed when the turning block is whole to be rotated and makes the storage part rotate to the outside of laying part one to the inner wall of storage part and screw hole produces the extrusion, and the screw thread lock solid in the storage part is extruded and is wrapped up between screw hole and bolt, thereby is fixed in the threaded hole better with the bolt, prevents that the bolt from becoming flexible.

The utility model discloses still further set up to: the storage part is provided with a first magnetic sheet embedded on the side wall close to the inner wall of the first placing part, and a second magnetic sheet embedded on the position, corresponding to the first magnetic sheet, of the inner wall of the first placing part.

Through the technical scheme, the first magnetic sheet and the second magnetic sheet are attracted before the bolt is installed, so that the storage part is completely positioned in the first mounting part, and the thread locking agent in the storage part is prevented from being extruded out in advance.

The utility model discloses still further set up to: and a soft rubber pad is arranged on the side wall of the pressing part far away from the second placing part.

Through above-mentioned technical scheme, the flexible glue pad can prevent to press the screw thread of splenium pair screw hole inner wall to cause wearing and tearing.

The utility model discloses still further set up to: one side of the hexagonal bolt head close to the screw rod is provided with a flange part, one side of the flange part far away from the hexagonal bolt head is provided with anti-loosening teeth, and the anti-loosening teeth are arranged around the screw rod.

Through above-mentioned technical scheme, after installing this bolt, the protruding face of the anti-skidding tooth that sets up on the protruding face of locking tooth on the flange portion and this bolt installation object offsets, can effectually prevent this bolt and loosen and slide against screwing up the direction pine, increases the locking measure of this bolt.

The utility model discloses still further set up to: the surface of the anti-loosening teeth is an inclined surface, and the height difference between the highest point and the lowest point of the surface of the anti-loosening teeth is 0.3 mm-0.6 mm.

Through the technical scheme, the height difference enables the convex surface of the anti-skidding tooth to more smoothly offset with the convex surface of the anti-skidding tooth on an installation object, so that the bolt is effectively prevented from loosening and sliding along the screwing direction.

The utility model discloses still further set up to: and the edge of the surface of the anti-loosening tooth is provided with a chamfer.

Through above-mentioned technical scheme, the chamfer can prevent that the edge of antiskid tooth is too sharp-pointed and causes the destruction to the installation object surface of bolt.

The utility model discloses still further set up to: and a countersunk hole with a regular hexagon cross section is formed in one end, far away from the screw, of the hexagonal bolt head.

Through the technical scheme, when the worker twists the bolt, the worker can use the inner hexagonal wrench to insert the bolt into the counter sink to twist the bolt except the outer side of the hexagonal bolt head can be twisted by using the common wrench.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

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

fig. 4 is a cross-sectional view taken along direction a of fig. 3 according to the present invention;

fig. 5 is an enlarged schematic structural view of a portion B in fig. 4 according to the present invention.

The reference numbers in the figures mean: 1. a hexagonal bolt head; 2. a screw; 3. a strip-shaped groove; 4. a first placing part; 5. a second placing part; 6. rotating the block; 7. a rotating shaft; 8. a storage section; 9. a pressing part; 10. a first magnetic sheet; 11. a second magnetic sheet; 12. a soft rubber cushion; 13. a flange portion; 14. locking tooth.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The present invention will be described below with reference to fig. 1 to 5.

The utility model provides an anti hexagon head bolt that becomes flexible of high strength, includes hexagon bolt head 1 and screw rod 2, and the cross-section is seted up for regular hexagon's counter sink in the one end that screw rod 2 was kept away from to hexagon bolt head 1. When the worker twists the bolt, the worker can use an inner hexagonal wrench to insert the bolt into the counter sink for twisting, in addition to using a common wrench to twist the outer side of the hexagonal bolt head 1. One side of the hexagonal bolt head 1 close to the screw rod 2 is provided with a flange part 13, one side of the flange part 13 far away from the hexagonal bolt head 1 is provided with anti-loosening teeth 14, and the anti-loosening teeth 14 are arranged around the screw rod 2. After the bolt is installed, the convex surface of the anti-loosening teeth 14 on the flange part 13 is abutted to the convex surface of the anti-loosening teeth arranged on an object for installing the bolt, so that the bolt can be effectively prevented from loosening and sliding along the screwing direction, and anti-loosening measures of the bolt are increased.

The surface of the locking tooth 14 is an inclined surface, and the height difference between the highest point and the lowest point of the surface of the locking tooth 14 is 0.3 mm-0.6 mm. The height difference enables the convex surface of the anti-skid tooth to more smoothly offset with the convex surface of the anti-skid tooth on an installation object, thereby effectively preventing the bolt from loosening and sliding along the screwing direction. The surface edges of the locking teeth 14 are provided with chamfers. The chamfer can prevent the edges of the anti-slip teeth from being too sharp to damage the surface of the mounting object of the bolt.

The screw rod 2 is provided with a strip-shaped groove 3 along the length direction, and the strip-shaped groove 3 is positioned in the middle of the screw rod 2 in the embodiment. The part of the strip-shaped groove 3, which is far away from the hexagonal bolt head 1, is a placing part I4, and the cross section of the placing part I4 is rectangular. The part of the strip-shaped groove 3 close to the hexagonal bolt head 1 is a second placing part 5, and the section of the second placing part 5 is fan-shaped. Be equipped with anti pine subassembly in the bar recess 3, anti pine subassembly includes turning block 6 and axis of rotation 7, and axis of rotation 7 is fixed in bar recess 3's intermediate position, and turning block 6's middle swivelling joint is on axis of rotation 7, and turning block 6 can use axis of rotation 7 to carry out the rotation of small-range as the pivot in bar recess 3.

The rotating block 6 comprises a storage part 8 and a pressing part 9, the section of the storage part 8 is rectangular and has the same size as the placement part I4, and the storage part 8 is stored with a thread locking agent. The section of the pressing part 9 is fan-shaped and has the same size as the placing part two 5, and the storage part 8 and the pressing part 9 cannot be simultaneously positioned inside the placing part one 4 and the placing part two 5. Before the bolt is installed, the storage part 8 is completely positioned in the first placing part 4; half of the pressing part 9 is positioned in the second placing part 5, and the other half is positioned outside the second placing part 5. When the bolt was gradually by the screw in threaded hole, the inner wall of screw hole extrudeed the splenium 9 of pressing that is in outside the portion of laying two 5, will press the whole portion of pressing of splenium 9 to impressing in the security protection portion two. According to the splenium 9 when being impressed the turning block 6 integral rotation makes the storage part 8 rotate to the outside of laying part 4 to the inner wall of storage part 8 and screw hole produces the extrusion, and the screw thread lock solid in the storage part 8 is extruded and is wrapped up between screw hole and bolt, thereby is fixed in the threaded hole better with the bolt, prevents that the bolt from becoming flexible.

The side wall of the storage part 8 close to the inner wall of the first placing part 4 is embedded with a first magnetic sheet 10, and the position of the inner wall of the first placing part 4 corresponding to the first magnetic sheet 10 is embedded with a second magnetic sheet 11. Before the bolt is installed, the first magnetic sheet 10 and the second magnetic sheet 11 are attracted, so that the storage part 8 is completely positioned in the first mounting part 4, and the thread locking agent in the storage part 8 is prevented from being extruded out in advance. Be equipped with soft cushion 12 on the lateral wall of pressing portion 9 to keep away from laying portion two 5, when the inner wall of screw hole extrudeed pressing portion 9, soft cushion 12 can prevent to press portion 9 to cause wearing and tearing to the screw thread of screw hole inner wall.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations of the above assumption should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an anti hexagon head bolt that moves of high strength, includes hexagon head (1) and screw rod (2), its characterized in that, strip groove (3) have been seted up along its length direction on screw rod (2), the part that hexagon head (1) was kept away from in strip groove (3) is for laying a (4), the cross sectional shape of laying a (4) is the rectangle, the part that strip groove (3) are close to hexagon head (1) is for laying a second (5), the cross sectional shape of laying a second (5) is fan-shaped, be equipped with anti loose subassembly in strip groove (3), anti loose subassembly includes turning block (6) and axis of rotation (7), axis of rotation (7) are fixed in the intermediate position of strip groove (3), the middle swivelling joint of turning block (6) is on axis of rotation (7), turning block (6) include storage portion (8) and press portion (9), the cross-section of storage portion (8) is the rectangle and the size is the same with portion of laying (4), screw thread locking agent has been stored in storage portion (8), press the cross-section of splenium (9) to be fan-shaped and the size is the same with portion of laying (5), storage portion (8) and press portion (9) can not be located portion of laying (4) and portion of laying (5) inside simultaneously.

2. The high-strength anti-loosening hexagonal bolt as claimed in claim 1, wherein: the storage part (8) is close to the lateral wall of the inner wall of the first placing part (4) and is embedded with a first magnetic sheet (10), and the position of the inner wall of the first placing part (4) corresponding to the first magnetic sheet (10) is embedded with a second magnetic sheet (11).

3. The high-strength anti-loosening hexagonal bolt as claimed in claim 1, wherein: and a soft rubber pad (12) is arranged on the side wall of the pressing part (9) far away from the second placing part (5).

4. The high-strength anti-loosening hexagonal bolt as claimed in claim 1, wherein: one side that hexagonal bolt head (1) is close to screw rod (2) is equipped with flange portion (13), one side that hexagonal bolt head (1) was kept away from in flange portion (13) is equipped with locking tooth (14), locking tooth (14) center on screw rod (2) are arranged and are set up.

5. The high-strength anti-loosening hexagonal bolt as claimed in claim 4, wherein: the surface of the locking tooth (14) is an inclined surface, and the height difference between the highest point and the lowest point of the surface of the locking tooth (14) is 0.3 mm-0.6 mm.

6. The high-strength anti-loosening hexagonal bolt as claimed in claim 4, wherein: the surface edge of the anti-loosening teeth (14) is provided with a chamfer.

7. The high-strength anti-loosening hexagonal bolt as claimed in claim 1, wherein: and a countersunk hole with a regular hexagon section is formed in one end, far away from the screw rod (2), of the hexagonal bolt head (1).