CN210715525U

CN210715525U - Anti-loose combined fastener with precise structure

Info

Publication number: CN210715525U
Application number: CN201921770559.7U
Authority: CN
Inventors: 杜建龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-06-09
Anticipated expiration: 2029-10-21

Abstract

A locking combined fastener with precise structure relates to the technical field of nuts. It includes: a workpiece assembled with the external mounting body; the anti-loosening assembly is arranged on the workpiece, can slide relative to the workpiece to protrude out of the inner wall surface of the workpiece, and is used for being abutted against the external mounting body to place the workpiece to be loosened; and the driving piece is sleeved on the external installation body, assembled with the workpiece and used for driving the loosening component to tightly abut against the workpiece. The external installation body is a screw, the workpiece is a nut, and the anti-loosening assembly protrudes out of an internal thread surface of the nut when abutting against the screw. Adopt above-mentioned technical scheme's combination nut, it supports tight screw rod through driving piece drive locking subassembly to realize locking effect, have simple structure, design benefit, locking effectual, the stable advantage of locking structure of moving.

Description

Anti-loose combined fastener with precise structure

Technical Field

The utility model relates to a nut technical field, concretely relates to locking combination fastener of structure precision.

Background

Bolt and nut are widely used as conventional detachable fastening parts in various fields of mechanical equipment, power and mechanical components. In strong vibration or irregular strong fluctuation environment, the nut can loosen and fall off, thereby causing mechanical accidents and even serious safety accidents.

Therefore, the method for preventing the nut from loosening by itself can be realized by a simple and easy method so as to ensure the reliability of the connecting structure, which is always a technical problem discussed by technical personnel in all related fields. Therefore, the anti-loose combined fastener with precise structure needs to be excavated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide an accurate locking combination fastener of structure, it supports tight screw rod through the locking subassembly of driving piece drive to realize locking not hard up effect, have simple structure, design benefit, locking effectual, the stable advantage of locking stable in structure that moves.

In order to achieve the above object, the utility model adopts the following technical scheme: a precision construction, anti-loosening combination fastener comprising: a workpiece assembled with the external mounting body; the anti-loosening assembly is arranged on the workpiece, can slide relative to the workpiece to protrude out of the inner wall surface of the workpiece, and is used for being abutted against the external mounting body to place the workpiece to be loosened; and the driving piece is sleeved on the external installation body, assembled with the workpiece and used for driving the loosening component to tightly abut against the workpiece.

The external installation body is a screw, the workpiece is a nut, and the anti-loosening assembly protrudes out of an internal thread surface of the nut when abutting against the screw.

One end of the nut is provided with an installation column assembled with the driving piece, an installation groove and an installation platform are arranged on the installation column, one part of the anti-loosening assembly is arranged in the installation groove, and the other part of the anti-loosening assembly is arranged on the installation platform.

The anti-loosening assembly comprises: the abutting block is slidably arranged in the mounting groove and is used for abutting against the screw rod under the driving of the driving piece; and one end of the arc-shaped frame is arranged on the mounting table, the other end of the arc-shaped frame is assembled with the abutting block, and the arc-shaped frame can synchronously move along with the abutting block when the abutting block moves.

The end face, far away from one side of the inner thread face, of the abutting block is arranged to be a wedge-shaped face, and the wedge-shaped face inclines to one side of the inner thread face from the heel of the mounting column.

And a thread section is arranged on one side of the abutting block, which is close to the inner thread surface, and the thread section is used for being matched with the thread of the screw rod so as to increase the contact area of the abutting block and the screw rod.

The supporting block is provided with an inserting hole, and an inserting column which is inserted into the inserting hole is arranged on one side of the arc-shaped frame, which is close to the supporting block.

The mounting table is provided with a clamping groove close to one side of the inner thread surface, and the clamping groove is used for being clamped with the arc-shaped part of the arc-shaped frame to improve the stability of the assembling of the abutting block.

The mounting column is provided with external threads, the inner wall of the driving piece is provided with internal threads matched with the external threads, and the driving piece is assembled with the mounting column through threads.

And a rotary force application part is arranged on one side of the nut, which is far away from the mounting column, and the rotary force application part is in a regular hexagonal prism shape.

After the technical scheme is adopted, the utility model discloses beneficial effect does:

1. through the driving piece and the locking subassembly that set up for the driving piece is to root one side motion of erection column when assembling with the erection column, makes the inside wall of driving piece extrude the wedge face of holding up piece in the locking subassembly gradually, makes locking subassembly gradually with the screw rod butt under the drive of driving piece, thereby guarantees that the nut appears becoming flexible in time and supports tightly with holding up the piece, makes the nut move more tightly more, has design benefit, simple structure, locking effectual advantage.

2. The wedge face of the abutting block is designed in a mode that the wedge face of the abutting block inclines from the root of the mounting column to one side of the internal thread face of the nut, the abutting block and the inner wall of the driving piece are convenient to abut, the abutting block is arranged on the driving piece in a gradually-increasing mode to abut against the screw rod gradually when the driving piece is screwed continuously, accordingly the extrusion force between the abutting block and the screw rod is gradually increased, the stability of fastening between the abutting block and the screw rod is effectively improved, and the anti-loosening effect between the nut and the screw rod is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

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

fig. 2 is an exploded view of the present invention;

FIG. 3 is a schematic structural view of the nut and the anti-loosening assembly of the present invention;

fig. 4 is a schematic structural view of the nut in the present embodiment.

Description of reference numerals: 1. a workpiece; 11. mounting a column; 12. mounting grooves; 13. an installation table; 14. a card slot; 15. a rotation force application part; 2. a locking assembly; 21. a propping block; 211. a threaded segment; 212. a wedge-shaped surface; 213. inserting holes; 22. an arc-shaped frame; 221. inserting the column; 3. a drive member.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment as required without making a contribution, but all the embodiments are protected by the patent law within the scope of the claims of the present invention.

The embodiment relates to a locking combination fastener that structure is accurate, includes: a workpiece 1, a loosening assembly 2 and a driving member 3.

The workpiece is used for assembling with the external installation body, so that the two objects are locked. The anti-loosening assembly 2 is arranged on the workpiece 1 and can slide relative to the workpiece 1 to protrude out of the inner wall surface of the workpiece 1. The loosening prevention assembly 2 is used for abutting against an external installation body to prevent the workpiece 1 from loosening. The driving piece 3 is sleeved on the external installation body and assembled with the workpiece 1, and the driving piece 3 is used for driving the anti-loosening assembly 2 to abut against the workpiece 1.

In this embodiment, the external mounting body is a screw, the workpiece 1 is a nut, and the anti-loose component 2 protrudes out of an internal thread surface of the nut when abutting against the screw. The nut is provided with a rotary force application part 15 at one side far away from the mounting post 11, and the rotary force application part 15 is in a regular hexagonal prism shape.

Preferably, as shown in fig. 1 to 4, one end of the nut is provided with a mounting post 11 to which the driving member 3 is assembled, and the mounting post 11 is provided with a mounting groove 12 and a mounting table 13. The anti-loosening assembly 2 is partially installed in the installation groove 12 and partially installed on the installation table 13.

Further, as shown in fig. 1 to 4, the anti-loosening assembly 2 includes: a holding block 21 and an arc frame 22. The abutting block 21 is slidably mounted in the mounting groove 12, and under the driving of the driving member 3, the abutting block 21 slides toward the inner thread surface side and is used for abutting against the screw rod, thereby preventing the nut and the screw rod from loosening. One end of the arc-shaped frame 22 is mounted on the mounting table 13, and the other end of the arc-shaped frame is assembled with the abutting block 21, and the arc-shaped frame 22 can move synchronously with the abutting block 21 when the abutting block 21 moves.

Preferably, as shown in fig. 1 to 4, the end surface of the abutment block 21 on the side away from the female thread surface is provided as a wedge surface 212, and the wedge surface 212 is inclined from the heel of the mounting post 11 to the female thread surface side so that the abutment block 21 abuts against the inner wall of the driving member 3. When the driving piece 3 is continuously screwed, the abutting block 21 is driven to gradually abut against the screw rod, so that the extrusion force between the abutting block 21 and the screw rod is gradually increased, the fastening stability between the abutting block 21 and the screw rod is effectively improved, and the anti-loosening effect between the nut and the screw rod is ensured.

Preferably, as shown in fig. 1 to 4, a threaded section 211 is disposed on one side of the abutting block 21 close to the internal thread surface, and the threaded section 211 is used for matching with the thread of the screw, so as to increase the contact area between the abutting block 21 and the screw, further improve the abutting effect of the abutting block 21 on the screw, and ensure the anti-loose effect of the nut.

Preferably, as shown in fig. 1 to 4, the abutting block 21 is provided with an insertion hole 213, and one side of the arc-shaped frame 22 close to the abutting block 21 is provided with an insertion column 221 inserted into the insertion hole 213. The abutting block 21 and the arc-shaped frame 22 are assembled through the insertion of the insertion column 221 and the insertion hole 213, so that the abutting block 21 and the arc-shaped frame 22 are convenient to disassemble and assemble. In addition, a clamping groove 14 is formed in one side, close to the inner thread surface, of the mounting table 13, and the clamping groove 14 is used for being clamped with the arc-shaped portion of the arc-shaped frame 22, so that assembling stability of the abutting block 21 is improved.

Preferably, as shown in fig. 1-4, the mounting post 11 is provided with an external thread and the inner wall of the driving member 3 is provided with an internal thread matching the external thread, so that the driving member 3 and the mounting post 11 are threadedly assembled. And the driving piece 3 is a locknut, and the outer surface of the driving piece is designed into a regular hexahedron shape, so that the locknut is convenient to screw and unscrew.

The working principle of the present embodiment is roughly as follows: when the anti-loose combined nut is matched with a screw rod to lock an object, the nut and the screw rod are assembled through threads, and the nut is guaranteed to abut against the mounting column 11 of the nut arranged on the assembly; then, the driving piece 3 is sleeved on the screw and moves towards one side of the nut, when the driving piece 3 is in contact with the mounting column 11, the driving piece 3 is rotated, so that the internal thread on the driving piece 3 is assembled with the external thread on the screw, the driving piece 3 is gradually close to one side of the rotary force application part 15, and in the process that the driving piece 3 is close to, the inner side wall of the driving piece 3 is abutted against the abutting block 21, so that the abutting block 21 abuts against the screw, and the anti-loosening effect of the combined nut is achieved; when not hard up phenomenon appears in the nut, it must be to driving piece 3 one side motion, supports tight piece 21 and is lifted up in the nut motion, supports tight piece 21 promptly for driving piece 3 to the trend of keeping away from nut one side motion, because the inclined plane that sets up on supporting tight piece 21 again realizes the locking effect of moving of combination nut, has simple structure, design benefit, locking effectual, the stable advantage of locking structure.

The above description is only for the purpose of illustration and not limitation, and other modifications or equivalent replacements made by those skilled in the art to the technical solution of the present invention should be covered by the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. An anti-loose combined fastener with precise structure is characterized by comprising:

a workpiece (1) assembled with an external mounting body;

a locking assembly (2) which is arranged on the workpiece (1) and can slide relative to the workpiece (1) to protrude the inner wall surface of the workpiece (1) and is used for abutting against the external installation body to prevent the workpiece (1) from loosening; and the driving piece (3) is sleeved on the external installation body, is assembled with the workpiece (1) and is used for driving the anti-loosening component (2) to tightly abut against the workpiece (1).

2. The anti-loose combination fastener with precise structure as claimed in claim 1, wherein the external mounting body is a screw, the workpiece (1) is a nut, and the anti-loose component (2) protrudes out of the internal thread surface of the nut when abutting against the screw.

3. The anti-loose combination fastener with precise structure as claimed in claim 2, characterized in that one end of the nut is provided with a mounting column (11) assembled with the driving piece (3), the mounting column (11) is provided with a mounting groove (12) and a mounting platform (13), one part of the anti-loose assembly (2) is mounted in the mounting groove (12), and the other part is mounted on the mounting platform (13).

4. A precision constructional loose-proof composed fastener according to claim 3, characterized in that said loose-proof assembly (2) comprises:

a pressing block (21) which is arranged in the mounting groove (12) in a sliding manner and is used for being abutted against the screw rod under the driving of the driving piece (3); and the number of the first and second groups,

one end of the arc-shaped frame (22) is installed on the installation table (13), the other end of the arc-shaped frame is assembled with the abutting block (21), and the arc-shaped frame can synchronously move along with the abutting block (21) when the abutting block (21) moves.

5. A precision construction anti-loose combination fastener according to claim 4, characterized in that the end surface of the abutment block (21) on the side away from the female thread surface is provided with a wedge surface (212), and the wedge surface (212) is inclined from the heel of the mounting post (11) to the side of the female thread surface.

6. The anti-loose combination fastener with precise structure as claimed in claim 5, characterized in that a threaded section (211) is arranged on the side of the abutting block (21) close to the inner thread surface, and the threaded section (211) is used for matching with the thread of the screw to increase the contact area between the abutting block (21) and the screw.

7. The anti-loose combination fastener with precise structure as claimed in claim 6, wherein the abutting block (21) is provided with an insertion hole (213), and one side of the arc frame (22) close to the abutting block (21) is provided with an insertion column (221) inserted with the insertion hole (213).

8. The anti-loose combination fastener with precise structure as claimed in claim 7, characterized in that a clamping groove (14) is arranged on one side of the mounting table (13) close to the internal thread surface, and the clamping groove (14) is used for clamping with the arc-shaped part of the arc-shaped frame (22) so as to improve the assembling stability of the abutting block (21).

9. A structurally precise, anti-loose combination fastener according to any one of claims 3 to 8, characterized in that the mounting post (11) is provided with an external thread and the driving member (3) is provided with an internal thread on its inner wall, which cooperates with the external thread, the driving member (3) being screw-fitted to the mounting post (11).

10. The precision construction, anti-loose combination fastener according to claim 9, characterized in that the nut is provided with a rotation forcing part (15) on the side away from the mounting post (11), and the rotation forcing part (15) is in the shape of a regular hexagonal prism.