CN220791727U

CN220791727U - Anti-loosening nut

Info

Publication number: CN220791727U
Application number: CN202322658593.8U
Authority: CN
Inventors: 邱建敏; 曹立可
Original assignee: Wenzhou Jijin Hardware Products Co ltd
Current assignee: Wenzhou Jijin Hardware Products Co ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-04-16
Anticipated expiration: 2033-09-28

Abstract

The utility model discloses an anti-loosening nut which relates to the technical field of standard component design, and comprises a hexagonal nut head, wherein a convex sleeve is arranged on the hexagonal nut head, a limiting screw sleeve is sleeved on the outer side of the convex sleeve, a clamping groove is formed in the convex sleeve in an annular shape, and an anti-loosening assembly is arranged in the clamping groove. According to the anti-loosening assembly, the integrally machined convex sleeve is arranged on one side of the hexagonal nut head, the outer side of the convex sleeve is provided with the limiting clamping blocks in an annular clamping manner, the outer sides of the adjacent limiting clamping blocks are connected with the limiting threaded sleeves in a threaded manner, and the limiting clamping blocks can be gradually extruded to act force from outside to inside through rotating the limiting threaded sleeves, so that the limiting clamping blocks are clamped on the connecting bolts, the connection friction between the limiting clamping blocks and the bolts can be increased through the anti-skid lines arranged on the limiting clamping blocks, and the use effect of the anti-loosening assembly is improved; the distance that the limit threaded sleeve is far away from the hexagonal nut head is adjusted, so that the extrusion acting force of the limit clamping block can be adjusted, and the fixation stability of the nut is further guaranteed.

Description

Anti-loosening nut

Technical Field

The utility model relates to the technical field of standard component design, in particular to an anti-loosening nut.

Background

The machine is widely used in various engineering or production fields as one of five elements of production and service in modern society, and development of each engineering field requires development of the machine engineering suitable for the machine engineering, and the machine engineering is required to provide necessary machines. The nut is used as the most common and main fastener in the machine, occupies quite large position, most of the nuts on the market at present are of a hexagonal structure, threaded holes are formed in the middle, and the nuts are screwed on the bolts by means of or other equipment to realize locking, but the nuts are easy to loosen when the nuts are applied to the machine with vibration, impact or heavy load, so that the nut with the anti-falling function is urgently needed.

Some existing anti-loosening nuts can be used for locking the bolts and the nuts, but the anti-loosening nuts are often complex in structure, so that the dismounting operation of the nuts is complicated. In view of this, we propose a locknut.

Disclosure of Invention

The utility model aims to provide an anti-loosening nut, which solves the problems that the prior anti-loosening nuts provided in the background art can realize locking between bolts and nuts, but the structure is often complex, so that the dismounting operation of the nuts is complicated.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a nut that locking takes off, includes the hexagon nut head, be equipped with the boss on the hexagon nut head, the limit swivel nut has been cup jointed in the boss outside, hexagon nut head and boss integrated into one piece are processed and are formed, the joint groove has been seted up to the annular on the boss, the joint groove sets up along the boss central line, the inside locking subassembly that takes off that is equipped with of joint groove, the locking subassembly that takes off can restrict the effect that the nut takes off.

Preferably, the anti-loosening assembly comprises a limiting clamping block, the limiting clamping block is clamped inside the clamping groove, a thread groove used for being connected with a limiting threaded sleeve is formed in the outer side face of the limiting clamping block, and anti-slip patterns are formed in the inner side face of the limiting clamping block.

Preferably, the cross section of the limiting clamping block is T-shaped, and the limiting clamping block is arranged in the limiting threaded sleeve.

Preferably, the lengths of the limiting clamping blocks and the clamping grooves are smaller than the length of the convex sleeve, and the limiting clamping blocks and the clamping grooves are annularly arranged with the convex sleeve as the center.

Preferably, the outer side surface of the limit clamping block protrudes out of the convex sleeve.

Preferably, a threaded hole for connection is formed in the inner side face of the hexagonal nut head, and the aperture of the threaded hole is smaller than the inner diameter of the convex sleeve.

Preferably, the limit clamping block is outwards protruded away from one end part of the hexagonal nut head, and the limit clamping block is flexible rubber.

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

1. according to the anti-loosening nut, the integrally machined convex sleeve is arranged on one side of the hexagonal nut head, the outer side of the convex sleeve is provided with the limiting clamping blocks in an annular clamping manner, the outer sides of the adjacent limiting clamping blocks are connected with the limiting threaded sleeves in a threaded manner, and the limiting clamping blocks can be gradually extruded to act force from outside to inside by rotating the limiting threaded sleeves, so that the limiting clamping blocks are clamped on the connecting bolts, the connection friction between the limiting clamping blocks and the bolts can be increased through the anti-skid patterns arranged on the limiting clamping blocks, and the anti-loosening use effect of the nut is improved; wherein, along with the spacing swivel nut keeps away from the hexagon nut head constantly, it is to the extrusion effort of spacing fixture block constantly increase, and then can be through the distance that the spacing swivel nut kept away from the hexagon nut head of adjustment, adjusts the extrusion effort to spacing fixture block to further ensure the fixed stability of nut, simple structure, convenient operation, and do benefit to the change of part.

Drawings

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

FIG. 2 is a schematic cross-sectional structural view of the present utility model;

FIG. 3 is a schematic front view of the present utility model;

fig. 4 is a right side view of the present utility model.

In the figure: 1. a hexagonal nut head; 2. a convex sleeve; 3. an anti-loosening assembly; 30. a limit clamping block; 31. a thread groove; 32. anti-skid lines; 4. a limit screw sleeve; 5. and a clamping 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.

Examples: referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a locking nut that takes off, mainly can realize the locking between bolt and the nut to some current locking nuts, but its often structure is complicated for the comparatively loaded down with trivial details problem of dismouting operation of nut improves, and its specific scheme is as follows: the utility model provides a nut that locking takes off, includes hexagon nut head 1, is equipped with boss 2 on the hexagon nut head 1, and wherein, hexagon nut head 1 and boss 2 are formed through the integrative processing of machining, so can increase the intensity of use of nut. Wherein, a threaded hole for connection is arranged on the inner side surface of the hexagonal nut head 1, and the aperture of the threaded hole is smaller than the inner diameter of the convex sleeve 2. The inner diameter of the convex sleeve 2 is set to be larger than the connecting thread aperture of the hexagonal nut head 1, so that the nut cannot be inconvenient to connect due to the convex sleeve 2, and a certain gap exists between the convex sleeve 2 and the bolt after connection.

As shown in fig. 1 and 2, a limit screw sleeve 4 is sleeved on the outer side of the convex sleeve 2, a clamping groove 5 is annularly formed in the convex sleeve 2, the clamping groove 5 is formed along the center line of the convex sleeve 2, the clamping groove 5 is a strip-shaped groove, and the clamping groove 5 is communicated with the inside of the convex sleeve 2.

Further, be equipped with anti-loosening subassembly 3 in joint groove 5 inside, anti-loosening subassembly 3 can restrict the effect that the nut pine took off.

Specifically, the anti-loosening assembly 3 comprises a limiting clamping block 30, the cross section of the limiting clamping block 30 is in a T shape, and the limiting clamping block 30 is arranged inside the limiting threaded sleeve 4. The end part of the limit clamping block 30 far away from the hexagonal nut head 1 protrudes outwards, and the limit clamping block 30 is made of flexible rubber. The outer side surface of the limit clamping block 30 protrudes out of the convex sleeve 2. In the initial state, the spacing between the limit screw sleeve 4 and the hexagonal nut head 1 is the smallest, at this time, the limit clamping block 30 breaks away from the extrusion of the limit screw sleeve 4, and one side of the limit clamping block away from the hexagonal nut head 1 is outwards protruded. The limiting clamping block 30 is made of flexible rubber, so that the limiting clamping block 30 can be extruded conveniently, and the operation and the anti-loosening fixing effect are facilitated.

Further, the limiting clamping blocks 30 are clamped inside the clamping grooves 5, the clamping grooves 5 can play a role in guiding and limiting the limiting clamping blocks 30, and the clamping grooves 5 and the limiting clamping blocks 30 are in one-to-one correspondence in number. The outer side surfaces of the adjacent limit clamping blocks 30 are provided with thread grooves 31 used for being connected with the limit threaded sleeves 4, and the inner side surfaces of the adjacent limit clamping blocks 30 are provided with anti-skid threads 32. The lengths of the limiting clamping blocks 30 and the clamping grooves 5 are smaller than the length of the convex sleeve 2, and the limiting clamping blocks 30 and the clamping grooves 5 are annularly arranged with the convex sleeve 2 as the center. After the nut is connected and fixed, through rotating the limit screw sleeve 4, the limit screw sleeve 4 rotates at the outer side of the adjacent limit clamping block 30, and along with the continuous distance from the hexagon nut head 1 of the limit screw sleeve 4, the extrusion acting force from outside to inside can be gradually exerted on the limit clamping block 30, so that the limit clamping block 30 is clamped on a connecting bolt, and the anti-skid lines 32 arranged on the limit clamping block 30 can increase the connection friction between the limit clamping block 30 and the bolt, so that the use effect of the anti-loosening assembly 3 is further increased.

The nut with the anti-loosening function is characterized in that when in operation: in the initial state, the spacing between the limit screw sleeve 4 and the hexagonal nut head 1 is the smallest, at this time, the limit clamping block 30 is separated from the extrusion of the limit screw sleeve 4, and one side of the limit clamping block, which is far away from the hexagonal nut head 1, is outwards protruded; because the inner diameter of the convex sleeve 2 is larger than the connecting threaded hole of the hexagonal nut head 1, the arranged convex sleeve 2 part can not influence the normal connection and use of the nut; after the nut is connected and fixed, the limit screw sleeve 4 rotates at the outer side of the adjacent limit clamping block 30 by rotating the limit screw sleeve 4, and along with the fact that the limit screw sleeve 4 is continuously far away from the hexagonal nut head 1, extrusion acting force from outside to inside can be gradually exerted on the limit clamping block 30, the limit clamping block 30 is clamped on the connecting bolt, and the anti-slip lines 32 arranged on the limit clamping block 30 can increase the connection friction between the limit clamping block 30 and the bolt, so that the anti-loosening use effect of the nut is improved; it is worth the description, wherein, along with spacing swivel nut 4 keeps away from hexagon nut head 1 constantly, its extrusion effort to spacing fixture block 30 increases constantly, and then can be through the distance that spacing swivel nut 4 kept away from hexagon nut head 1, adjust the extrusion effort to spacing fixture block 30 to further ensure the locking effect of nut.

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

1. The utility model provides a nut that locking takes off, includes hexagon nut head (1), its characterized in that: be equipped with boss (2) on hexagon nut head (1), limit screw sleeve (4) have been cup jointed in boss (2) outside, hexagon nut head (1) and boss (2) integrated into one piece are processed into, joint groove (5) have been seted up to being annular on boss (2), joint groove (5) set up along boss (2) central line, joint groove (5) inside is equipped with anti-loosening subassembly (3), anti-loosening subassembly (3) can restrict the effect that the nut pine takes off.

2. A locknut as defined in claim 1, wherein: the anti-loosening assembly (3) comprises a limiting clamping block (30), wherein the limiting clamping block (30) is clamped inside the clamping groove (5), a thread groove (31) used for being connected with a limiting threaded sleeve (4) is formed in the outer side face of the limiting clamping block (30), and anti-slip threads (32) are formed in the inner side face of the limiting clamping block (30).

3. A locknut as defined in claim 2, wherein: the cross section of the limiting clamping block (30) is T-shaped, and the limiting clamping block (30) is arranged in the limiting threaded sleeve (4).

4. A locknut as defined in claim 3, wherein: the length of the limiting clamping block (30) and the length of the clamping groove (5) are smaller than the length of the convex sleeve (2), and the limiting clamping block (30) and the clamping groove (5) are annularly arranged with the convex sleeve (2) as the center.

5. The anti-loosening nut of claim 4, wherein: the outer side surface of the limiting clamping block (30) protrudes out of the convex sleeve (2).

6. A lock nut as defined in claim 5, wherein: threaded holes for connection are formed in the inner side face of the hexagonal nut head (1), and the aperture of each threaded hole is smaller than the inner diameter of the convex sleeve (2).

7. A lock nut as defined in claim 6, wherein: the limiting clamping block (30) is outwards protruded away from one end part of the hexagonal nut head (1), and the limiting clamping block (30) is made of flexible rubber.