CN210769787U

CN210769787U - Self-locking bolt

Info

Publication number: CN210769787U
Application number: CN201921318218.6U
Authority: CN
Inventors: 戚士华
Original assignee: Yangzhou Forest Auto Parts Co ltd
Current assignee: Yangzhou Forest Auto Parts Co ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-06-16
Anticipated expiration: 2029-08-15

Abstract

The utility model discloses a self-locking bolt relates to the bolt technology field, specifically is a self-locking bolt, the female screw comprises a bolt, the surface threaded connection of bolt has the nut, the bottom fixedly connected with connecting block of nut, the spacing groove has been seted up in the front of bolt, the stopper has been cup jointed in the inside activity of connecting block, the front threaded connection of stopper has adjusting screw. This self-locking bolt, through with the limiting plate joint at the spacing inslot, make the stopper can't rotate around the bolt, use by the cooperation of baffle and spacing tooth again, prevent connecting block antiport, it still can not become flexible to have guaranteed that the nut is under the condition of vibrations, fixed fastness has been improved, through setting up adjusting screw, when the nut is loosened to needs, the internal rotation adjusting screw, make adjusting screw and joint groove joint be in the same place and drive the inside that the baffle rotated the stopper, make the baffle not hindering spacing tooth, the nut just can the antiport take out like this.

Description

Self-locking bolt

Technical Field

The utility model relates to a bolt technical field specifically is a self-locking bolt.

Background

The bolt is a mechanical part, the cylindrical threaded fastener of adapted nut, a class of fastener that comprises head and screw rod (the cylinder that has the external screw thread), need with the nut cooperation, be used for the fastening connection two parts that have the through-hole, general bolt does not have the function of auto-lock, the nut can loosen automatically in the in-process that uses, consequently just need the auto-lock bolt that has the auto-lock function, general auto-lock bolt is all through setting up nylon circle etc. and increasing the frictional force between nut and the bolt and reach the function of auto-lock, but this kind of bolt of auto-lock by increasing frictional force still can take place to become flexible under the condition of long-term vibrations, be unfavorable for the apparatus use of some long-term vibrations, for this we provide a auto-lock bolt.

SUMMERY OF THE UTILITY MODEL

The not enough to prior art, the utility model provides a self-locking bolt has solved the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a self-locking bolt, includes the bolt, the surface threaded connection of bolt has the nut, the bottom fixedly connected with connecting block of nut, the spacing groove has been seted up in the front of bolt, the stopper has been cup jointed in the inside activity of connecting block, the front threaded connection of stopper has adjusting screw.

Optionally, the inside fixedly connected with cover joint plate of connecting block, the inside fixedly connected with spacing tooth of cover joint plate, the thickness of the plate of cup jointing is less than the thickness of connecting block.

Optionally, the inside fixedly connected with limiting plate of stopper, the limiting plate joint is at the spacing inslot, the baffle has been cup jointed in the front activity of stopper, the top of baffle is provided with the salient angle, the left side fixedly connected with spring of limiting plate, the left side of spring has the right side fixed connection of stopper, the front fixedly connected with fixed block of stopper, the front of baffle is provided with the joint groove.

Optionally, the number of the limiting grooves is two, and the limiting grooves are symmetrically distributed on two sides of the bolt by taking the central line of the bolt as a symmetry axis.

Optionally, one end of the adjusting screw extends to the inside of the limiting block and is clamped with the clamping groove.

The utility model provides a self-locking bolt possesses following beneficial effect:

1. this self-locking bolt through with the limiting plate joint at the spacing inslot, makes the stopper can't rotate around the bolt, uses by the cooperation of baffle and spacing tooth again, prevents connecting block antiport, has guaranteed that the nut still can not become flexible under the circumstances of vibrations, has improved fixed fastness.

2. This self-locking bolt through setting up adjusting screw, when the nut is loosened to needs, and the internal rotation adjusting screw makes adjusting screw and joint groove joint together and drives the inside that the baffle rotated the stopper, makes the baffle not hindering spacing tooth, and the nut just can the antiport take out like this, and whole operation is comparatively simple, makes things convenient for the fastening of nut and takes out, has improved the life of bolt.

Drawings

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

fig. 2 is a schematic structural view of the present invention viewed from the bottom;

fig. 3 is a sectional view of the connecting block of the present invention;

fig. 4 is an enlarged view of a in fig. 3 according to the present invention.

In the figure: 1. a bolt; 2. a nut; 3. connecting blocks; 31. sleeving and connecting plates; 32. limiting teeth; 4. a limiting groove; 5. a limiting block; 51. a limiting plate; 52. a baffle plate; 53. a lobe; 54. a spring; 55. a fixed block; 56. a clamping groove; 6. and adjusting screws.

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.

Referring to fig. 1 to 4, the present invention provides a technical solution: a self-locking bolt comprises a bolt 1, wherein a nut 2 is connected to the outer surface of the bolt 1 in a threaded manner, a connecting block 3 is fixedly connected to the bottom of the nut 2, a sleeve plate 31 is fixedly connected to the inside of the connecting block 3, a limiting tooth 32 is fixedly connected to the inside of the sleeve plate 31, the thickness of the sleeve plate 31 is smaller than that of the connecting block 3, through arranging the sleeve plate 31, limiting blocks 5 are clamped at two sides of the sleeve plate 31, the connecting block 3 and the limiting blocks 5 are conveniently and movably sleeved together, meanwhile, the stability of connection between the limiting blocks 5 and the connecting block 3 is ensured, the limiting blocks 5 and the connecting block 3 are prevented from falling off, the stability of the device is improved, a limiting groove 4 is formed in the front surface of the bolt 1, the number of the limiting grooves 4 is two, the limiting grooves 4 are symmetrically distributed at two sides of the bolt 1 by taking the central line, the limiting block 5 is prevented from rotating along with the connecting block 3, the reverse rotation of the nut 2 is favorably prevented, the loosening of the nut 2 is avoided, the practicability of the device is improved, the limiting block 5 is sleeved on the inner portion of the connecting block 3, the limiting plate 51 is fixedly connected to the inner portion of the limiting block 5, the limiting plate 51 is clamped in the limiting groove 4, the baffle 52 is sleeved on the front face of the limiting block 5 in a movable mode, the convex angle 53 is arranged on the top of the baffle 52, the spring 54 is fixedly connected to the left side of the limiting plate 51, the spring 54 is fixedly connected to the right side of the limiting block 5 on the left side, the fixed block 55 is fixedly connected to the front face of the limiting block 5, through the baffle 52, when the nut 2 and the connecting block 3 rotate clockwise, the baffle 52 is pushed by the limiting teeth 32 to compress the spring 54, the baffle 52 retracts into the limiting block, while fixed block 55 prevents salient angle 53 anticlockwise rotation, make baffle 52 block spacing tooth 32 and rotate, the reversal of connecting block 3 and nut 2 has been prevented, avoid nut 2 to take place the pine and take off, the fastness of fixing has been improved, the front of baffle 52 is provided with joint groove 56, stopper 5's front threaded connection has adjusting screw 6, adjusting screw 6's one end extends to stopper 5's inside and with joint groove 56 joint, through setting up adjusting screw 6, when nut 2 is loosened to needs, rotatory adjusting screw 6, make adjusting screw 6 and joint groove 56 joint together and drive baffle 52 clockwise rotation, make baffle 52 retract in stopper 5, the rotation that is not hindering spacing tooth 32, make things convenient for taking off of nut 2, the practicality of device has been improved.

In conclusion, when the self-locking bolt is used, the bolt 1 penetrates through a preset hole of a fixing part, the nut 2 is sleeved outside the bolt 1 in a threaded manner, the limit plate 51 is aligned with the limit groove 4, the nut 2 is rotated upwards to drive the connecting block 3 and the limit block 5 to move upwards, the limit plate 51 is clamped with the limit groove 4, the connecting block 3 is driven to rotate together in the rotation process of the nut 2, the limit tooth 32 pushes the baffle plate 52 to compress the spring 54, the limit tooth 32 can continue to rotate, when the connecting block 3 rotates reversely, the spring 54 springs up the baffle plate 52 rightwards, and the fixed block 55 blocks the convex angle 53 to prevent the baffle plate 52 from rotating anticlockwise, so that the baffle plate 52 can prevent the limit tooth 32 from rotating reversely, the nut 2 is prevented from loosening, when the nut 2 needs to be taken down, only the adjusting screw 6 needs to be rotated, the adjusting screw 6 is clamped with the clamping groove 56, and then the, the baffle plate 52 retracts into the limiting block 5, the limiting teeth 32 cannot be prevented from rotating, and the nut 2 is rotated to be taken down.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A self-locking bolt, comprising a bolt (1), characterized in that: the outer surface threaded connection of bolt (1) has nut (2), the bottom fixedly connected with connecting block (3) of nut (2), spacing groove (4) have been seted up in the front of bolt (1), stopper (5) have been cup jointed in the inside activity of connecting block (3), the front threaded connection of stopper (5) has adjusting screw (6).

2. A self-locking bolt according to claim 1 wherein: the connecting device is characterized in that the inner portion of the connecting block (3) is fixedly connected with a sleeving connection plate (31), the inner portion of the sleeving connection plate (31) is fixedly connected with a limiting tooth (32), and the thickness of the sleeving connection plate (31) is smaller than that of the connecting block (3).

3. A self-locking bolt according to claim 1 wherein: the inside fixedly connected with limiting plate (51) of stopper (5), limiting plate (51) joint is in spacing groove (4), baffle (52) have been cup jointed in the front activity of stopper (5), the top of baffle (52) is provided with salient angle (53), the left side fixedly connected with spring (54) of limiting plate (51), the left side of spring (54) has the right side fixed connection of stopper (5), the positive fixedly connected with fixed block (55) of stopper (5), the front of baffle (52) is provided with joint groove (56).

4. A self-locking bolt according to claim 1 wherein: the number of the limiting grooves (4) is two, and the limiting grooves are symmetrically distributed on two sides of the bolt (1) by taking the central line of the bolt (1) as a symmetry axis.

5. A self-locking bolt according to claim 1 wherein: one end of the adjusting screw (6) extends to the inside of the limiting block (5) and is clamped with the clamping groove (56).