CN219366554U - Anti-loose anti-theft nut - Google Patents

Abstract

The utility model discloses a locknut, which comprises: the fixing device assembly comprises a first clamping block which is fixedly connected to the surface of the nut body, a limiting ring is movably connected to the surface of the bolt body, a reinforcing rib is fixedly connected to the inner wall of the limiting ring, and a limiting groove is formed in the position where the reinforcing rib is connected with the bolt body.

Description

Anti-loose anti-theft nut

Technical Field

The utility model relates to the technical field of fasteners, in particular to a locknut.

Background

The common nut is a common fastener, and the screw hole of the common nut is internally provided with internal threads and is matched with a bolt for use, so that the common nut is widely applied to the field of mechanical connection. In some special occasions, such as transmission towers of electric power systems, guardrails of highways and the like, in order to prevent damage of lawbreakers, nuts are required to have an anti-theft function.

However, when the prior art is in actual use, the common nut has poor anti-loosening and anti-theft functions and is easy to damage and detach by lawbreakers, so that property loss is caused.

Disclosure of Invention

The utility model aims to provide a locking anti-theft nut so as to solve the problem that the structure of the nut is inconvenient to lock and prevent theft.

In order to achieve the above purpose, the present utility model provides the following technical solutions: comprising the following steps:

the nut device assembly comprises a nut body, wherein an inner thread is arranged on the inner wall of the nut body, a fixed ring is fixedly connected to the lower end of the nut body, a limiting piece is fixedly connected to the inner wall of the fixed ring, a dismounting hole is formed in the surface of the nut body, a bolt body is movably connected to the center of the surface of the nut body, a bolt seat is fixedly connected to the lower end of the bolt body, and an external thread is arranged on the surface of the bolt body;

the fixing device assembly comprises a first clamping block which is fixedly connected to the surface of the nut body, a limiting ring is movably connected to the surface of the bolt body, a reinforcing rib is fixedly connected to the inner wall of the limiting ring, a limiting groove is formed in the position where the reinforcing rib is connected with the bolt body, and a second clamping block is fixedly connected to the lower end of the limiting ring.

Preferably, the number of the limiting sheets is two, and the two limiting sheets are fixedly connected to the inner wall of the fixing ring in an annular shape.

Preferably, the internal thread is clamped with the external thread at a position corresponding to the external thread.

Preferably, the number of the first clamping blocks is six, and the six first clamping blocks are fixedly connected to the surface of the nut body in an annular shape.

Preferably, one end of the first clamping block corresponding to the second clamping block is clamped.

Preferably, the number of the reinforcing ribs is four, and the four reinforcing ribs are fixedly connected to the inner wall of the limiting ring in an annular mode.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the nut, the reinforcing ribs on the inner wall of the limiting ring are aligned with the limiting grooves on the surface of the bolt body, so that the first clamping block and the second clamping block are clamped, the nut body can rotate anticlockwise when being vibrated, the first clamping block can rotate along with the nut body to generate a thrust force for the second clamping block, at the moment, the second clamping block is fixed, the nut body is prevented from rotating, the locking and anti-loosening effects are achieved, and only tools matched with the disassembling holes can disassemble the bolt body through the disassembling holes, so that the anti-theft effect is achieved, and the anti-loosening and anti-theft purposes of the nut structure are achieved;

2. the utility model also increases the contact area and the limiting function of the bolt body and the nut body by arranging the fixing ring and the limiting piece, so that the friction force between the bolt body and the nut body is increased, and the locking and anti-loose functions are realized.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a locknut of the present utility model;

FIG. 2 is a schematic view of a nut body of the anti-loose and anti-theft nut of the present utility model;

FIG. 3 is a schematic view of a check nut stop collar according to the present utility model;

fig. 4 is a front view of a first clamping block structure of the anti-loose and anti-theft nut of the present utility model.

In the figure: 1. a nut body; 2. an internal thread; 3. a first clamping block; 4. disassembling the hole; 5. a limiting ring; 6. a second clamping block; 7. reinforcing ribs; 8. a fixing ring; 9. a limiting piece; 10. a bolt seat; 11. a bolt body; 12. an external thread; 13. and a limit groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: comprising the following steps:

the nut device assembly comprises a nut body 1, wherein an inner thread 2 is arranged on the inner wall of the nut body 1, a fixed ring 8 is fixedly connected to the lower end of the nut body 1, limiting pieces 9 are fixedly connected to the inner wall of the fixed ring 8, two limiting pieces 9 are arranged in number and are fixedly connected to the inner wall of the fixed ring 8 in a ring shape, a dismounting hole 4 is formed in the surface of the nut body 1, a bolt body 11 is movably connected to the center of the surface of the nut body 1, a bolt seat 10 is fixedly connected to the lower end of the bolt body 11, an external thread 12 is arranged on the surface of the bolt body 11, and the positions, corresponding to the external thread 12, of the internal thread 2 are clamped;

the fixing device assembly comprises first clamping blocks 3, the first clamping blocks 3 are fixedly connected to the surface of the nut body 1, six first clamping blocks 3 are fixedly connected to the surface of the nut body 1, the limiting rings 5 are movably connected to the surface of the bolt body 11, reinforcing ribs 7 are fixedly connected to the inner wall of the limiting rings 5, four reinforcing ribs 7 are fixedly connected to the inner wall of the limiting rings 5, limiting grooves 13 are formed in the positions, where the reinforcing ribs 7 are connected with the bolt body 11, of the limiting rings 5, second clamping blocks 6 are fixedly connected to the lower ends of the limiting rings 5, and one ends of the first clamping blocks 3 and the corresponding positions of the second clamping blocks 6 are connected in a clamping mode.

Working principle: when the nut is used, the nut body 1 is manually screwed on the bolt body 11, the contact area and the limiting effect of the bolt body 11 and the nut body 1 are increased through the fixing ring 8 and the limiting piece 9, the friction force between the fixing ring and the nut body is increased, the locking and anti-loosening effects are achieved, then the reinforcing ribs 7 on the inner wall of the limiting ring 5 are aligned with the limiting grooves 13 on the surface of the bolt body 11, the first clamping block 3 and the second clamping block 6 are clamped, the nut body 1 can rotate anticlockwise when being vibrated, the first clamping block 3 can generate a thrust force on the second clamping block 6 along with the rotation of the nut body 1, at the moment, the second clamping block 6 is fixed, the nut body 1 is prevented from rotating, the locking and anti-loosening effects are achieved, the bolt body 11 can be disassembled only by a tool matched with the disassembling hole 4 through the arrangement of the disassembling hole 4, the anti-loosening and anti-theft effects are achieved, and the anti-loosening and anti-theft purposes of the nut structure is achieved.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims (6)

1. A locknut, which is characterized in that: comprising the following steps:

the nut device assembly comprises a nut body (1), wherein an inner thread (2) is arranged on the inner wall of the nut body (1), a fixed ring (8) is fixedly connected to the lower end of the nut body (1), a limiting piece (9) is fixedly connected to the inner wall of the fixed ring (8), a dismounting hole (4) is formed in the surface of the nut body (1), a bolt body (11) is movably connected to the central position of the surface of the nut body (1), a bolt seat (10) is fixedly connected to the lower end of the bolt body (11), and an external thread (12) is arranged on the surface of the bolt body (11);

the fixing device assembly comprises a first clamping block (3), the first clamping block (3) is fixedly connected to the surface of the nut body (1), a limiting ring (5) is movably connected to the surface of the bolt body (11), a reinforcing rib (7) is fixedly connected to the inner wall of the limiting ring (5), a limiting groove (13) is formed in the position, connected with the bolt body (11), of the reinforcing rib (7), and a second clamping block (6) is fixedly connected to the lower end of the limiting ring (5).

2. A locknut as defined in claim 1, wherein: the number of the limiting sheets (9) is two, and the two limiting sheets (9) are fixedly connected to the inner wall of the fixed ring (8) in an annular shape.

3. A locknut as defined in claim 1, wherein: the inner thread (2) is clamped with the outer thread (12) at the corresponding position.

4. A locknut as defined in claim 1, wherein: six first clamping blocks (3) are arranged, and the six first clamping blocks (3) are fixedly connected to the surface of the nut body (1) in an annular mode.

5. A locknut as defined in claim 4, wherein: one end of the first clamping block (3) corresponding to the second clamping block (6) is clamped.

6. A locknut as defined in claim 1, wherein: the number of the reinforcing ribs (7) is four, and the four reinforcing ribs (7) are fixedly connected to the inner wall of the limiting ring (5) in an annular mode.