CN210344004U

CN210344004U - Novel anti-drop self-locking nut

Info

Publication number: CN210344004U
Application number: CN201921157318.5U
Authority: CN
Inventors: 任彦成; 高欢欢; 王丹
Original assignee: Haiyan Jinzhu Technology Co Ltd
Current assignee: Haiyan Jinzhu Technology Co Ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-04-17
Anticipated expiration: 2029-07-23

Abstract

The utility model relates to the technical field of nuts, and discloses a novel anti-drop self-locking nut, the thick edge of a spiral column is pushed into a self-locking groove by rotating an upper nut, a rubber pad is engaged with a bolt, the bolt is locked by the friction force of the rubber pad and the bolt thread, the number of contact edges of the rubber pad and the bolt can be determined according to the rotation depth of the upper nut, thereby the thread engagement area of the rubber pad and the bolt is determined, the thread which gradually damages the bolt under long-time use and disassembly caused by overlarge friction force is avoided, the material of the rubber pad is softer by the engagement of the rubber pad and the bolt, the buffer force is generated to the bolt under the environments of shaking, collision and the like, the thread of the bolt can be protected, the service life of the bolt is prolonged, a protection cylinder protects the upper nut, a connecting column and a lower nut, the corrosion of foreign matters such as water, oil and the like is avoided, and the strength of the self, thereby increasing the service life of the self-locking nut.

Description

Novel anti-drop self-locking nut

Technical Field

The utility model relates to a nut technical field specifically is a novel anticreep self-locking nut.

Background

The nut is a part screwed together with a bolt or a screw rod to play a role in fastening, all production and manufacturing machines must use one element, and the working principle of the self-locking nut, also called as a lock nut, is generally self-locking by friction force.

The problem that the friction force is uncontrollable exists in the existing self-locking nut, and the thread of the bolt is gradually damaged under the long-time use and the disassembly due to the overlarge friction force, so that the bolt is damaged, the thread is slipped and the like. Therefore, a new anti-slip self-locking nut is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a novel anticreep self-locking nut possesses advantages such as frictional force controllable in size, has solved the too big thread that can damage the bolt gradually of frictional force and has leaded to the bolt to damage, the problem of smooth silk.

(II) technical scheme

For realizing the controllable purpose of above-mentioned frictional force size, the utility model provides a following technical scheme: a novel anti-drop self-locking nut comprises an upper nut, a lower nut, a connecting column and a protective cylinder, wherein the upper nut and the lower nut are in a regular hexagonal body with the same size, the protective cylinder and the connecting column are in a cylindrical body shape, the upper nut, the center of lower nut and spliced pole all begins to have the cylinder hole and the inner circle diameter of lower nut and spliced pole unanimous, the diameter that a protection section of thick bamboo was the fretwork state and a protection section of thick bamboo inner circle is unanimous with the diameter of upper nut and lower nut outer lane, the top surface and the spliced pole fixed connection of lower nut, the one side that the lower nut was kept away from to the spliced pole cup joints with the inner circle of upper nut, the central line of lower nut and spliced pole is overlapping state, the bottom inner wall of a protection section of thick bamboo and the top outer wall fixed connection of lower nut, the spliced pole is located inside the protection section of thick bamboo, the bottom outer wall of upper nut is located the top.

Five self-locking grooves are respectively formed in the front face and the back face of the connecting column, the five self-locking grooves in the front face and the back face of the connecting column are distributed in a staggered mode, the five self-locking grooves in the same face of the connecting column are distributed uniformly from top to bottom, the self-locking grooves are in a parallelogram shape, a rubber pad is sleeved on the inner wall of the connecting column, a spiral column is sleeved on the outer wall of the connecting column, the cross section of the spiral column is in a rectangular shape, the inner ring of the spiral column corresponds to the ten self-locking grooves respectively, the width of the spiral column is four fifths of the self-locking grooves, the thickness of the spiral column corresponding to the self-locking groove is different from that of the threaded column not corresponding to the self-locking groove, specifically, the thickness of the spiral column corresponding to the self-locking groove is twice of the thickness of the threaded column not corresponding to the self-locking groove, the thick edge of the spiral column is in a state that the thick edge protrudes towards the inner ring, every two fan-shaped protruding intervals that correspond from top to bottom are unanimous with every two self-locking groove intervals that correspond from top to bottom, and fan-shaped bellied height is unanimous with every two self-locking groove intervals that correspond from top to bottom, and the front and back wall of going up the nut inner circle evenly fixedly connected with respectively pushes away the piece five, pushes away the piece and is the alternating expression and distributes between four sectorial pieces of wall around the nut inner circle, and the shape that pushes away the piece is the semi-annular body and pushes the piece and correspond the one face both ends at nut center and be the inclined plane.

Preferably, the spiral column is made of hard rubber.

Preferably, the rubber pad is made of soft rubber.

Preferably, the thickness of the fan-shaped protrusions is consistent with the maximum thickness of the spiral column.

Preferably, the thickness of the pushing block is half of the maximum thickness of the spiral column.

(III) advantageous effects

Compared with the prior art, the utility model provides a novel anticreep self-locking nut possesses following beneficial effect:

1. this novel anticreep self-locking nut, thick limit through making the spiral post after rotatory nut is gone up promotes to the self-locking inslot, make rubber pad and bolt engagement, frictional force through rubber pad and bolt thread is to bolt locking, can decide the contact limit number of rubber pad and bolt according to the rotatory degree of depth of last nut, thereby decide the thread meshing area of rubber pad and bolt, avoided leading to long-time use and dismantling the thread that damages the bolt gradually under the frictional force too greatly, and can not push the self-locking inslot with other inner walls of spiral post when promoting the spiral post that promotes rather than the laminating and get into the self-locking inslot, thereby reach the accurate control to frictional force.

2. This novel anticreep self-locking nut through the thread meshing of rubber pad and bolt, the material of rubber pad is softer, produces the cushion effect to the bolt under environment such as rock, collision, can protect the thread of bolt, prolongs the life of bolt.

3. This novel anticreep self-locking nut all sets up in a protection section of thick bamboo through upper nut, spliced pole and lower nut, and a protection section of thick bamboo is protected upper nut, spliced pole and lower nut, avoids the corruption of water, oil foreign matter to can strengthen this self-locking nut's intensity, thereby increase this self-locking nut's life.

4. This novel anticreep self-locking nut corresponds the setting that the one side both ends at nut center are the inclined plane through promoting the piece, can be when promoting the thick limit of piece and spiral post tangent, can cut into comparatively smoothly and easily, reduces the user and rotates the physical demands of going up the nut.

Drawings

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

FIG. 2 is a schematic front sectional view of the present invention;

FIG. 3 is a schematic view of the A-A section structure of FIG. 2;

fig. 4 is a schematic front sectional structural view of the upper nut of the present invention;

fig. 5 is a schematic view of the top surface structure of the upper nut of the present invention.

In the figure: 1 upper nut, 2 lower nuts, 3 connecting columns, 4 protective cylinders, 5 self-locking grooves, 6 rubber pads, 7 spiral columns, 8 fan-shaped bulges and 9 pushing blocks.

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. 1-5, the utility model provides a novel anti-drop self-locking nut, which comprises an upper nut 1, a lower nut 2, a connecting column 3 and a protective cylinder 4, wherein the upper nut 1 and the lower nut 2 are regular hexagonal bodies with the same size, the protective cylinder 4 and the connecting column 3 are cylindrical bodies, the centers of the upper nut 1, the lower nut 2 and the connecting column 3 are all provided with cylindrical holes, the diameters of the inner rings of the lower nut 2 and the connecting column 3 are the same, the protective cylinder 4 is in a hollow state, the diameter of the inner ring of the protective cylinder 4 is the same as the diameters of the outer rings of the upper nut 1 and the lower nut 2, the top surface of the lower nut 2 is fixedly connected with the connecting column 3, one surface of the connecting column 3, which is far away from the lower nut 2, is sleeved with the inner ring of the upper nut 1, the central lines of the lower nut 2 and the connecting column 3 are in an overlapping state, the, the connecting column 3 is positioned inside the protective barrel 4, the outer wall of the bottom end of the upper nut 1 is positioned on the inner wall of the top end of the protective barrel 4, and the inner ring of the lower nut 2 is provided with a thread groove.

Five self-locking grooves 5 are respectively formed in the front surface and the back surface of the connecting column 3, the five self-locking grooves 5 in the front surface and the back surface of the connecting column 3 are distributed in a staggered mode, the five self-locking grooves 5 in the same surface of the connecting column 3 are uniformly distributed from top to bottom, the self-locking grooves 5 are in a parallelogram shape, the inner wall of the connecting column 3 is sleeved with a rubber pad 6, the rubber pad 6 is made of soft rubber, the outer wall of the connecting column 3 is sleeved with a spiral column 7, the cross section of the spiral column 7 is rectangular, the spiral column 7 is made of hard rubber, the inner ring of the spiral column 7 corresponds to the ten self-locking grooves 5 respectively, the width of the spiral column 7 is four fifths of the self-locking grooves 5, the thickness of the spiral column 7 corresponding to the position of the self-locking grooves 5 is different from the thickness of the spiral column not corresponding to the position of the self-locking grooves 5, particularly, the thickness of the spiral column 7 corresponding to the position of, the thick edge of the spiral column 7 is in a state of protruding towards the inner ring, the inner wall of the spiral column 7 corresponding to the notch of the self-locking groove 5 is fixedly connected with the rubber pad 6, the front wall surface and the rear wall surface of the inner ring of the upper nut 1 are respectively and uniformly provided with four fan-shaped bulges 8, the distance between every two vertically corresponding fan-shaped bulges 8 is consistent with the distance between every two vertically corresponding self-locking grooves 5, the thickness of the fan-shaped bulges 8 is consistent with the maximum thickness of the spiral column 7, the height of the fan-shaped bulges 8 is consistent with the distance between every two vertically corresponding self-locking grooves 5, the front wall surface and the rear wall surface of the inner ring of the upper nut 1 are respectively and uniformly and fixedly connected with five pushing blocks 9, the five pushing blocks 9 on the front wall surface and the rear wall surface of the inner ring of the nut are distributed among the four fan-shaped blocks on the front wall surface and the rear wall surface of the inner ring of the nut in, the user is through 2 and bolt threaded connection back with lower nut, continue to rotate the part outer wall that makes the bolt and be located spliced pole 3 inside, then rotate nut 1, fan-shaped arch 8 of its inner wall constantly impels along the inclined plane of spiral post 7 when going up nut 1 and rotating, impel the outer wall block that piece 9 and spiral post 7 are located 5 posts from the locked groove in the propulsion process, promote spiral post 7 and get into from the locked groove 5 in, spiral post 7 promotes the inseparable block of the thread of back rubber pad 6 and bolt that gets into from the locked groove 5, make nut and bolt auto-lock through frictional force.

In use, in a first step, the lower nut 2 is screwed onto the bolt and one end of the bolt is screwed into the connecting post 3.

And secondly, rotating the upper nut 1, and determining the depth of the upper nut 1 rotating into the protective cylinder 4 according to the required friction force.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel anticreep self-locking nut, includes nut (1), lower nut (2), spliced pole (3) and a protection section of thick bamboo (4), its characterized in that: the protective cylinder (4) and the connecting column (3) are cylindrical, the centers of the upper nut (1), the lower nut (2) and the connecting column (3) are provided with cylindrical holes, the diameters of inner rings of the lower nut (2) and the connecting column (3) are consistent, the protective cylinder (4) is in a hollow state, the top surface of the lower nut (2) is fixedly connected with the connecting column (3), one surface, far away from the lower nut (2), of the connecting column (3) is sleeved with the inner ring of the upper nut (1), the inner wall of the bottom end of the protective cylinder (4) is fixedly connected with the outer wall of the top end of the lower nut (2), the connecting column (3) is located inside the protective cylinder (4), the outer wall of the bottom end of the upper nut (1) is located on the inner wall of the top end of the protective cylinder (4), and the inner ring of the;

the front surface and the back surface of the connecting column (3) are respectively provided with five self-locking grooves (5), the five self-locking grooves (5) on the front surface and the back surface of the connecting column (3) are distributed in a staggered manner, the five self-locking grooves (5) on the same surface of the connecting column (3) are uniformly distributed from top to bottom, the inner wall of the connecting column (3) is sleeved with a rubber gasket (6), the outer wall of the connecting column (3) is sleeved with a spiral column (7), the inner ring of the spiral column (7) is respectively corresponding to the ten self-locking grooves (5), the thickness of the spiral column (7) corresponding to the self-locking grooves (5) is different from that of the threaded column which does not correspond to the self-locking grooves (5), the inner wall of the spiral column (7) corresponding to the groove opening of the self-locking grooves (5) is fixedly connected with the rubber gasket (6), the front wall surface and the rear wall of the inner ring of the upper nut (1) are respectively and uniformly provided with four fan-shaped bulges (8), the front wall surface and the rear wall surface of the inner ring of the upper nut (1) are respectively and uniformly and fixedly connected with five pushing blocks (9), and the five pushing blocks (9) on the front wall surface and the rear wall surface of the inner ring of the nut are distributed among four fan-shaped blocks on the front wall surface and the rear wall surface of the inner ring of the nut in a staggered mode.

2. The novel anti-drop self-locking nut as claimed in claim 1, wherein: the upper nut (1) and the lower nut (2) are regular hexagonal bodies with the same size.

3. The novel anti-drop self-locking nut as claimed in claim 1, wherein: the width of the spiral column (7) is four fifths of that of the self-locking groove (5).

4. The novel anti-drop self-locking nut as claimed in claim 1, wherein: the thickness of the spiral column (7) corresponding to the position of the self-locking groove (5) is twice of the thickness of the threaded column not corresponding to the position of the self-locking groove (5).

5. The novel anti-drop self-locking nut as claimed in claim 1, wherein: the thick edge of the spiral column (7) is in a state of protruding towards the inner circle.

6. The novel anti-drop self-locking nut as claimed in claim 1, wherein: the shape of the pushing block (9) is a semi-annular body, and two ends of one surface, corresponding to the center of the upper nut (1), of the pushing block (9) are inclined planes.