CN219755065U - Self-locking anti-loose nut - Google Patents
Self-locking anti-loose nut Download PDFInfo
- Publication number
- CN219755065U CN219755065U CN202321353580.3U CN202321353580U CN219755065U CN 219755065 U CN219755065 U CN 219755065U CN 202321353580 U CN202321353580 U CN 202321353580U CN 219755065 U CN219755065 U CN 219755065U
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- nut
- deflection
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- self
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- 238000000034 method Methods 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model discloses a self-locking anti-loosening nut which comprises a top nut, a bottom nut, a deflection nut and a locking assembly, wherein the top nut is arranged on one side end face of the deflection nut, the bottom nut is arranged on the other side end face of the deflection nut, and the locking assembly is arranged in each of the top nut and the bottom nut; the top layer nut and the bottom layer nut are forced to move radially in opposite directions by deflecting the nuts, so that radial pressure is generated on the screw rod by the top layer nut and the bottom layer nut, the nuts can be tightly attached to the screw rod in the radial direction, and the nuts are prevented from being loosened due to stress; through the locking component that sets up in top layer nut and the bottom nut, lock top layer nut, bottom nut and deflection nut relative position under the auto-lock locking state for the nut is the tightness still can not reduce under the dynamic load condition of meetting.
Description
Technical Field
The utility model relates to the technical field of nuts, in particular to a self-locking anti-loosening nut.
Background
The nut and the bolt are mechanical fixing pieces which are very wide in application, the tightness of the nut and the bolt can be reduced under the condition of dynamic load, the nut is easy to loosen and fall off due to mechanical movement or vibration for a long time, the fixed piece is shifted or loosened, the mechanical parts are damaged if the nut is light, faults or accidents are possibly caused if the nut is heavy, therefore, some anti-loose measures are adopted in important occasions to ensure the reliability of locking the nut, the methods of spring washers, double nuts, strong adhesive bonding and the like are usually adopted in the prior art, the time of self loosening of the fastener can be relieved to a certain extent, but the loosening and falling off can still be caused by vibration for a long time, and therefore, the self-locking anti-loosening nut is designed for solving the problems.
Disclosure of Invention
Aiming at the defects of the prior nut technology, the utility model aims to provide a self-locking anti-loosening nut which has the advantages of self locking and anti-loosening and the like.
In order to achieve the above purpose, the utility model adopts a technical scheme that: the self-locking anti-loosening nut comprises a top nut, a bottom nut, a deflection nut and a locking assembly, wherein the top nut is arranged on one side end face of the deflection nut, the bottom nut is arranged on the other side end face of the deflection nut, the locking assembly is arranged in each of the top nut and the bottom nut, the deflection nut is provided with a first deflection hole, a second deflection hole and a positioning hole, the first deflection hole is arranged on one side end face of the deflection nut, the second deflection hole is arranged on the other side end face of the deflection nut, the first deflection hole and the second deflection hole are radially offset relative to the center of the deflection nut, the offset directions of the first deflection hole and the second deflection hole are opposite, and the positioning holes are arranged on the two side end faces of the deflection nut corresponding to the locking position of the locking assembly;
preferably, the contact surfaces of the top nut and the bottom nut are provided with limiting rings with protruding end faces, the limiting rings of the end faces of the top nut are offset radially relative to the center of the top nut, and the limiting rings of the end faces of the bottom nut are offset radially relative to the center of the bottom nut;
preferably, the top nut end surface limiting ring is rotationally connected with the first deflection hole of the deflection nut end surface, and the bottom nut end surface limiting ring is rotationally connected with the second deflection hole of the deflection nut end surface;
preferably, the locking assembly comprises a locking pin and a spring, wherein the locking pin is slidably connected inside the top layer nut and the bottom layer nut, and the spring forces the locking pin to be inserted into the positioning hole for locking when the locking pin is at the locking position;
preferably, the contact surface of the bottom layer nut and the workpiece is also provided with a flange;
the beneficial effects of the utility model are as follows: 1. the top layer nut and the bottom layer nut are forced to move radially in opposite directions by deflecting the nuts, so that radial pressure is generated on the screw rod by the top layer nut and the bottom layer nut, the nuts can be tightly attached to the screw rod in the radial direction, and the nuts are prevented from being loosened due to stress; 2. through the locking component that sets up in top layer nut and the bottom nut, lock top layer nut, bottom nut and deflection nut relative position under the auto-lock locking state for the nut is the tightness still can not reduce under the dynamic load condition of meetting.
Drawings
FIG. 1 is a sectional view showing a screwing installation state of the present utility model;
FIG. 2 is a cross-sectional structural view showing a self-locking and anti-loosening state of the present utility model;
FIG. 3 is a top view of the deflector nut of the present utility model;
fig. 4 is an enlarged partial view of area I of fig. 2 in accordance with the present utility model.
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.
It should be noted that, in the description of the present utility model, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "provided," and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1 to 4, an embodiment of the present utility model includes:
the self-locking anti-loosening nut comprises a top nut 1, a bottom nut 2, a deflection nut 3 and a locking assembly 4, wherein the top nut 1 is arranged on one side end face of the deflection nut 3, the bottom nut 2 is arranged on the other side end face of the deflection nut 3, the locking assembly 4 is arranged in each of the top nut 1 and the bottom nut 2, the deflection nut 3 is provided with a first deflection hole 31, a second deflection hole 32 and a positioning hole 33, the first deflection hole 31 is arranged on one side end face of the deflection nut 3, the second deflection hole 32 is arranged on the other side end face of the deflection nut 3, the first deflection hole 31 and the second deflection hole 32 are radially offset relative to the center of the deflection nut 3, the offset directions of the first deflection hole 31 and the second deflection hole 32 are opposite, and the locking positions of the two side end faces of the deflection nut 3 corresponding to the locking assembly 4 are provided with the positioning holes 33;
the contact surfaces of the top layer nut 1 and the bottom layer nut 2 are provided with limiting rings 5 with protruding end faces, the limiting rings 5 on the end faces of the top layer nut 1 are offset radially relative to the center of the top layer nut 1, and the limiting rings 5 on the end faces of the bottom layer nut 2 are offset radially relative to the center of the bottom layer nut 2;
the end face limiting ring 5 of the top nut 1 is rotationally connected with the first deflection hole 31 on the end face of the deflection nut 3, and the end face limiting ring 5 of the bottom nut 2 is rotationally connected with the second deflection hole 32 on the end face of the deflection nut 3;
the locking assembly 4 comprises a locking pin 41 and a spring 42, the locking pin 41 is slidably connected inside the top layer nut 1 and the bottom layer nut 2, and the spring 42 forces the locking pin 41 to be inserted into the positioning hole 33 for locking when in a locking position;
the contact surface of the bottom layer nut 2 and the workpiece is also provided with a flange 21;
through the arrangement, in the actual working process, the specific working principle is as follows:
firstly, a self-locking anti-loosening nut is sleeved on a screw rod, then the self-locking anti-loosening nut is integrally screwed to a fastening position shown in fig. 1, at the moment, the top layer nut 1 and the bottom layer nut 2 are on the same axis, a locking pin 41 is not inserted into a positioning hole 33, the top layer nut 1, the bottom layer nut 2 and the deflection nut 3 can relatively rotate, then the deflection nut 3 is rotated 180 degrees by using a tool, in the rotating process of the rotating deflection nut 3, as the end surface limiting ring 5 of the top layer nut 1 is rotationally connected with the first deflection hole 31 of the end surface of the deflection nut 3, the end surface limiting ring 5 of the bottom layer nut 2 is rotationally connected with the second deflection hole 32 of the end surface of the deflection nut 3, the first deflection hole 31 and the second deflection hole 32 are radially deflected relative to the center of the deflection nut 3, and the deflection directions of the first deflection hole 31 and the second deflection hole 32 are opposite, so that the deflection nut 3 forces the top layer nut 1 and the bottom layer nut 2 to radially move in opposite directions, and thus radial pressure is generated on the screw rod by the top layer nut 1 and the bottom layer nut 2, and the nut can be tightly attached to the screw rod in radial direction, and the nut is prevented from loosening;
when the deflection nut 3 rotates 180 degrees to a state as shown in fig. 2, the positioning holes 33 on the two side end surfaces of the deflection nut 3 enter a locking position, and at the moment, the spring 42 forces the locking pin 41 which is in sliding connection with the top nut 1 and the bottom nut 2 to be inserted into the positioning holes 33, so that the relative positions of the top nut 1, the bottom nut 2 and the deflection nut 3 are locked, and the tightness of the nuts is not reduced under the condition of encountering dynamic load;
the foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (5)
1. The utility model provides a self-locking locknut, its characterized in that includes top layer nut, bottom nut, deflection nut and locking subassembly, deflection nut one side terminal surface is equipped with the top layer nut, deflection nut opposite side terminal surface is equipped with the bottom nut, all be equipped with locking subassembly in top layer nut and the bottom nut, deflection nut has first deflection hole, second deflection hole and locating hole, first deflection hole sets up at deflection nut one side terminal surface, the second deflection hole sets up at deflection nut opposite side terminal surface, first deflection hole and second deflection hole are radial offset relative deflection nut center, first deflection hole and second deflection hole offset opposite direction, deflection nut both sides terminal surface corresponds locking subassembly locking position and all is equipped with the locating hole.
2. The self-locking locknut of claim 1, wherein the top nut and bottom nut contact surfaces each have a stop ring with a convex end surface, the top nut end surface stop ring being radially offset from the top nut center, the bottom nut end surface stop ring being radially offset from the bottom nut center.
3. The self-locking locknut of claim 1, wherein the top nut end stop ring is rotatably connected to the first deflection aperture of the deflection nut end, and the bottom nut end stop ring is rotatably connected to the second deflection aperture of the deflection nut end.
4. The self-locking locknut of claim 1, wherein the locking assembly comprises a locking pin and a spring, wherein the locking pin is slidably connected to the inside of the top nut and the bottom nut, and the spring forces the locking pin to be inserted into the positioning hole for locking when the locking pin is at the locking position.
5. The self-locking locknut of claim 1, wherein the bottom nut and workpiece interface further comprises a flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321353580.3U CN219755065U (en) | 2023-05-30 | 2023-05-30 | Self-locking anti-loose nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321353580.3U CN219755065U (en) | 2023-05-30 | 2023-05-30 | Self-locking anti-loose nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219755065U true CN219755065U (en) | 2023-09-26 |
Family
ID=88083687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321353580.3U Active CN219755065U (en) | 2023-05-30 | 2023-05-30 | Self-locking anti-loose nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219755065U (en) |
-
2023
- 2023-05-30 CN CN202321353580.3U patent/CN219755065U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |