CN217682721U

CN217682721U - Anti-loosening type hexagon nut

Info

Publication number: CN217682721U
Application number: CN202123447259.5U
Authority: CN
Inventors: 黄忠龙
Original assignee: Zhejiang Sanlin Metals Products Co Ltd
Current assignee: Zhejiang Sanlin Metals Products Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-10-28
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses an anti-loosening hexagonal nut, including the nut body, the inboard of the one end of nut body is provided with the recess, and is provided with anti-skidding rubber ring in the recess, still includes the top clamping ring, top clamping ring axial one side is the roof pressure inclined plane of slope, and the roof pressure inclined plane is located the inner face of top clamping ring, and the internal diameter of anti-skidding rubber ring is less than the minimum internal diameter of screw thread on the nut body, be provided with the slot that supplies the roof pressure ring to stretch into between the inner wall of anti-skidding rubber ring and recess, the roof pressure inclined plane of top clamping ring inserts to the recess through slot department, the utility model discloses before the nut reachs its face that will paste tightly, it can be quick twist soon on the bolt, and the resistance is very little, and when reacing the face that will paste tightly, then extrudees anti-skidding rubber ring through the roof pressure ring and pastes tight bolt and nut, reaches the purpose that the shelves are loose, and it is very convenient to use.

Description

Anti-loosening type hexagon nut

Technical Field

The utility model belongs to the technical field of the fastener, more specifically the utility model relates to an anti-loosening hexagonal nut that says so.

Background

In the market at present, self-locking nut adopts steel to make for special occasion, in locking, anti-vibration, belongs to effective rectangular locknut, has locking, anti-vibration's effect, nevertheless requires the bolt that corresponds to also reach corresponding hardness, just can reach locking, anti-vibration's effect.

The Chinese patent with application number 2016205143398 discloses a locknut, which comprises a nut body, wherein a groove is formed in the inner side of one end of the nut body, and a silica gel ring is embedded in the groove; and an anti-slip surface larger than the cross section of the nut body is arranged at one end of the nut body far away from the groove. The anti-loose nut is embedded with the silica gel ring, so that the friction force of the nut is increased, and the locking, anti-loose and anti-vibration effects of the nut are improved; the anti-slip surface which is larger than the cross section of the nut body and the anti-slip threads which are arranged on the anti-slip surface can increase friction force and improve the locking, anti-loosening and anti-vibration effects of the nut.

Although the above patent achieves the anti-slip effect by increasing the friction force between the nut and the bolt through the silicone ring, when the nut and the bolt are locked, the silicone ring contacts the bolt, and at this time, a large resistance force begins to be formed, and the user must overcome the resistance force to slowly screw the nut to a specified position, which is more troublesome especially when the nut needs to be screwed for a long distance and the manual wrench is screwed.

SUMMERY OF THE UTILITY MODEL

To prior art's not enough, the utility model provides a before the nut reachs its face that will paste tightly, it can be quick twist soon on the bolt, and the resistance is very little, and when reacing the face that will paste tightly, then pastes tight bolt and nut through roof pressure ring extrusion anti-skidding rubber ring, reaches the purpose that the shelves are loose, and it is very convenient to use.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an anti-loosening hexagonal nut, includes the nut body, and the inboard of the one end of nut body is provided with the recess, and is provided with anti-skidding rubber ring in the recess, still includes the top clamping ring, one side of top clamping ring axial is the roof pressure inclined plane of slope, and the roof pressure inclined plane is located the inner face of top clamping ring, and the internal diameter of anti-skidding rubber ring is less than the threaded minimum internal diameter on the nut body, be provided with the slot that supplies the roof pressure ring to stretch into between the inner wall of anti-skidding rubber ring and recess, the roof pressure inclined plane of top clamping ring inserts to the recess through slot department.

The section of the antiskid rubber ring is circular.

Further, the axial length of the top pressing ring is smaller than the depth of the groove.

The anti-skid rubber ring further comprises a tail part and a head part, the head part is in a curling shape, the head part is formed by outward rolling towards the center of the nut body, and the tail part is attached to the bottom surface of the groove.

Furthermore, a chamfer is arranged on the edge of the nut body corresponding to the groove.

Compared with the prior art, the beneficial effects of the utility model are that: the anti-slip rubber ring is not in contact with the bolt before use, so that the nut body can be smoothly screwed on the bolt, when the nut body is in contact with and clings to the surface, the jacking ring is continuously extruded into the groove, the jacking ring continuously draws the anti-slip rubber ring towards the center through the jacking inclined plane, namely the anti-slip rubber ring is deformed to contact with the bolt, the anti-slip rubber ring is simultaneously contacted with the bottom of the groove and the bolt, the purpose of effectively preventing looseness is achieved, the nut body can be quickly assembled and screwed, and the assembly efficiency is improved.

Drawings

Fig. 1 is a three-dimensional structure diagram of the anti-loosening hexagonal nut of the present invention;

fig. 2 is a front view of the anti-loosening hexagonal nut of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a schematic view of the press ring portion of the first embodiment being pressed into the groove;

fig. 5 is a schematic view of the second embodiment with the press ring portion pressed into the groove.

Reference numerals: 1. a nut body; 12. a groove; 13. chamfering; 2. an anti-slip rubber ring; 21. a tail portion; 22. a head; 3. pressing the ring; 31. and pressing the inclined surface.

Detailed Description

Embodiments of the anti-loosening hexagonal nut of the present invention will be further described with reference to fig. 1 to 5.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and as used in the description of the invention, the definition of "a plurality" or "a plurality" means two or more unless otherwise explicitly specified.

The first embodiment is as follows:

as shown in fig. 1-4, an anti-loosening hexagonal nut comprises a nut body 1, wherein a groove 12 is formed in the inner side of one end of the nut body 1, an anti-skid rubber ring 2 is arranged in the groove 12, the anti-loosening hexagonal nut further comprises a jacking ring 3, one axial side of the jacking ring 3 is an inclined jacking inclined surface 31, the jacking inclined surface 31 is located on the inner surface of the jacking ring 3, the inner diameter of the anti-skid rubber ring 2 is smaller than the minimum inner diameter of threads on the nut body 1, a slot for the jacking ring 3 to stretch into is formed between the anti-skid rubber ring 2 and the inner wall of the groove 12, and the jacking inclined surface 31 of the jacking ring 3 is inserted into the groove 12 through the slot.

In the present embodiment, the section of the antiskid rubber ring 2 is circular.

The inner wall of the groove 12 is preferably an upright surface parallel to the axis of the nut body 1, wherein the pressing slope 31 of the pressing ring 3 gradually increases the thickness of one side of the pressing ring 3 to the middle, the outer side surface of the pressing ring 3 is an upright surface, and the outer diameter of the pressing ring 3 is substantially equal to the diameter of the groove 12.

As shown in fig. 1 and 2, before use, the anti-slip rubber ring 2 and the jacking ring 3 can be separated from the nut body 1, when the anti-slip rubber ring is required to be used, the anti-slip rubber ring 2 is firstly installed in the groove 12, or the jacking ring 3 and the anti-slip rubber ring 2 are directly sleeved on the bolt in sequence, in the process, the jacking ring 3 and the anti-slip rubber ring 2 can smoothly reach a surface to be attached to the nut body 1 without hindrance, then the nut body 1 is screwed, when the nut body 1 is about to reach the surface to be attached, the rubber ring is placed in the groove 12, one side of the jacking inclined surface 31 of the jacking ring 3 is aligned with the groove 12, along with continuous screwing of the nut body 1, the jacking ring 3 extends into the groove 12, the jacking inclined surface 31 of the jacking ring 3 extends into the slot, the anti-slip rubber ring 2 is gradually extruded towards the middle, the purpose of reducing the inner diameter of the anti-slip rubber ring 2 can be achieved, the anti-slip rubber ring 2 is made to contact with the bolt, and the anti-slip rubber ring 2 is made to contact with the bottom surface of the groove 12, and the bolt can be locked well.

The axial length of the jacking ring 3 is preferably smaller than the depth of the groove 12, and when the nut body 1 is completely locked, the jacking ring 3 can completely extend into the groove 12, so that the nut body 1 is tightly attached to and extruded with a surface to be attached.

The edge of the nut body 1 corresponding to the groove 12 is preferably provided with a chamfer 13, and the chamfer 13 can facilitate the smooth sliding of the top pressing ring 3 into the groove 12.

Example two:

as shown in fig. 5, in the present embodiment, the anti-slip rubber ring 2 includes a tail portion 21 and a head portion 22, the head portion 22 is in a curled shape, the head portion 22 is formed by being rolled towards the outside toward the center of the nut body 1, the tail portion 21 is attached to the bottom surface of the groove 12, and other technical features may be the same as those of the first embodiment.

In the embodiment, when the anti-slip rubber ring 2 is in a natural state, the head 22 of the anti-slip rubber ring does not contact the inner wall of the groove 12, and still forms a slot, when the top pressure ring 3 is inserted into the groove 12, the top pressure ring contacts the head 22 and presses the head 22 to turn and expand the head 22 inwards, the expanded head 22 contacts a bolt to achieve the purpose of preventing looseness, and meanwhile, when the top pressure ring 3 reaches the deepest position, the top pressure ring 3 is pressed on the tail 21, so that the pressing force friction between the tail 21 and the bottom of the groove 12 is stronger, and the anti-looseness effect is further improved; as shown in fig. 5, the side of the pressing ring 3 facing the bottom surface of the groove 12 is preferably formed with a flat surface to press the tail 21 of the cleat rubber ring 2 in better contact therewith.

In this embodiment, the cross section of the head portion 22 may be a solid circle, and the tail portion 21 is connected to the outside of the head portion 22, and when pressed by the knock ring 3, the whole body is gathered toward the center, so long as the knock ring 3 can contact and press the tail portion 21.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that modifications and embellishments within the scope of the present disclosure may be made by those skilled in the art without departing from the principles of the present disclosure.

Claims

1. The utility model provides an anti-loosening hexagonal nut, includes the nut body, and the inboard of the one end of nut body is provided with the recess, and is provided with anti-skidding rubber ring, its characterized in that in the recess: still include the top pressure clamping ring, the axial one side of top pressure clamping ring is the roof pressure inclined plane of slope, and the roof pressure inclined plane is located the inner face of top pressure clamping ring, and the internal diameter of non-slip rubber circle is less than the minimum internal diameter of screw thread on the nut body, non-slip rubber circle and the recess be provided with between the inner wall of supply the slot that the top pressure ring stretched into, the roof pressure inclined plane of top pressure clamping ring inserts to the recess through slot department.

2. The anti-loosening hexagonal nut as claimed in claim 1, wherein: the section of the antiskid rubber ring is circular.

3. The anti-loosening hexagonal nut as claimed in claim 2, wherein: the axial length of the top pressing ring is smaller than the depth of the groove.

4. The anti-loosening hexagonal nut as claimed in claim 1, wherein: the anti-skidding rubber ring comprises a tail part and a head part, the head part is in a curling shape, the head part is formed by rolling towards the outer side of the center of the nut body, and the tail part is attached to the bottom surface of the groove.

5. The anti-loosening hexagonal nut according to any one of claims 1 to 4, wherein: and the edge of the nut body corresponding to the groove is provided with a chamfer.