CN219827430U - Lock nut capable of improving locking function of internal thread - Google Patents
Lock nut capable of improving locking function of internal thread Download PDFInfo
- Publication number
- CN219827430U CN219827430U CN202320727026.0U CN202320727026U CN219827430U CN 219827430 U CN219827430 U CN 219827430U CN 202320727026 U CN202320727026 U CN 202320727026U CN 219827430 U CN219827430 U CN 219827430U
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- locking
- indentation
- internal thread
- lock nut
- improving
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- 238000007373 indentation Methods 0.000 claims abstract description 32
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 230000007547 defect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000004080 punching Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model relates to a lock nut capable of improving an internal thread locking function, which comprises a body, wherein the body comprises a hexagonal nut part, 3 locking indentations are uniformly arranged on the outer peripheral surface of the hexagonal nut part, the body comprises an upper end and a lower end, and the locking indentations are arranged between the upper end and the lower end of the body. By adopting the technical scheme, the height difference of the opposite side stamping of the nuts in the same batch can be controlled to be about 0.03 mm; the locking indentation is arranged in the middle three-face thread starting tooth position, so that the locking torque of three-face locking is more stable than that of top three-point locking and opposite-side locking; the opposite side locking has the defect that the locked product is elliptical, and the phenomena of tightening and slipping and no putting in of the tightening sleeve are likely to occur, and the technical scheme adopts the three-point locking indentation in the middle part to deform the internal thread, so that the three points are uniformly stressed, the middle part is more stable compared with the two ends, and the phenomenon of elliptical deformation is avoided; can be produced on an automatic punching machine, is convenient for automatic production, and has high production efficiency and low cost.
Description
Technical Field
The utility model relates to the technical field of locking nuts, in particular to a locking nut capable of improving the locking function of internal threads.
Background
The prior common anti-loosening technology for the structure of the fastener, referring to the accompanying figures 1-2, is relatively commonly applied in the following steps: the top three-point locking nut or the opposite side locking nut realizes locking by changing the shape of the internal thread, and is simple to operate. The defects are that: the two locking modes have locking effect, but the locking torque is unstable, and the condition that the locking torque is unqualified often occurs.
Two factors that cause unstable locking torque: (1) The heights of nuts in the same batch have height difference, and the height is controlled to be 0.1mm, so that the high requirement is met; and (2) the locking position of the nut and the thread starting tooth are in position difference.
Disclosure of Invention
In summary, in order to overcome the defects in the prior art, the utility model provides a lock nut capable of improving the locking function of internal threads.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a lock nut that can improve internal thread locking function, includes the body, and the body includes hexagonal nut portion, and the outer peripheral face of hexagonal nut portion evenly is provided with 3 locking indentation, and the body includes upper end and lower extreme, locking indentation sets up between the upper end and the lower extreme of body.
By adopting the technical scheme, the height difference of the opposite side stamping of the nuts in the same batch can be controlled to be about 0.03 mm; the locking indentation is arranged in the middle three-face thread starting tooth position, so that the locking torque of three-face locking is more stable than that of top three-point locking and opposite-side locking; the opposite side locking has the defect that the locked product is elliptical, and the phenomena of tightening and slipping and no putting in of the tightening sleeve are likely to occur, and the technical scheme adopts the three-point locking indentation in the middle part to deform the internal thread, so that the three points are uniformly stressed, the middle part is more stable compared with the two ends, and the phenomenon of elliptical deformation is avoided; can be produced on an automatic punching machine, is convenient for automatic production, and has high production efficiency and low cost.
The utility model further provides that: the height of the body is h, and the height of the locking indentation is h1, and h1 is more than or equal to 1/3h and less than or equal to 2/3h.
Through adopting above-mentioned technical scheme, too high or too low, easily cause nut limit end atress, the atress is uneven easily, influences locking torque's stability, improves the qualification rate, strengthens the security.
The utility model further provides that: the h1=0.5 h.
By adopting the technical scheme, the locking indentation is in the middle part, the initial tooth of the thread is not easy to influence, the deformation of the initial tooth of the thread is avoided, and when the nut is used, the nut can advance and retreat more smoothly, and the nut is more convenient to use.
The utility model further provides that: the locking indentation is one of a circle, a semicircle, a triangle and a polygon.
By adopting the technical scheme, the appearance of the nut in the technical scheme of the utility model can be hexagonal nuts such as hexagonal flange nuts, hexagonal nuts and the like, and the locking indentation is not limited to a round shape, but can also be other shapes.
The utility model further provides that: an internal thread is arranged in the body, the pitch of the thread is P, and the diameter d=1.5P of the locking indentation is formed.
By adopting the technical scheme, when the locking indentation is too small and the pressure is the same, the smaller the stress area is, the larger the pressure is, the larger the abrasion of the pressure head is, the service life is short, and the cost is high; when the locking indentation is too large, the nut is easy to deform when the locking indentation is formed.
The utility model further provides that: the locking indentation depth is positively correlated with the locking torque.
Through adopting above-mentioned technical scheme, according to the nut material and the different technology, the hardness of its material is different, simultaneously because the thickness of hexagonal nut portion is different (i.e. internal diameter and external diameter are different), its locking indentation degree of depth also has the difference, but under the same circumstances of material and thickness, locking indentation degree of depth adjusts according to the size of locking moment of torsion.
The following describes specific embodiments of the present utility model with reference to the drawings and examples.
Drawings
FIG. 1 is a block diagram of a prior art top three-point lock nut;
FIG. 2 is a block diagram of a prior art opposite side lock nut;
FIG. 3 is a block diagram of an embodiment of the present utility model;
FIG. 4 is a top view of an embodiment of the present utility model;
reference numerals: 1. the body, 2, hexagonal nut portion, 3, locking indentation.
Detailed Description
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.
Referring to fig. 3-4, a lock nut capable of improving locking function of internal threads disclosed in this embodiment includes a body 1, the body 1 includes a hexagonal nut portion 2, 3 locking indentations 3 are uniformly provided on an outer circumferential surface of the hexagonal nut portion 2, the body 1 includes an upper end and a lower end, and the locking indentations 3 are disposed between the upper end and the lower end of the body 1.
In the technical scheme of the utility model, the body 1 can also comprise a flange part or a hexagonal lock nut with other specific shapes.
The present embodiment further provides: the locking indentation 3 is arranged on the central axis of the two side edges of the same side face of the hexagonal nut part 2.
The present embodiment further provides: the height of the body 1 is h, and the height of the locking indentation 3 is h1, and h1 is more than or equal to 1/3h and less than or equal to 2/3h.
The present embodiment further provides: the h1=0.5 h.
The present embodiment further provides: the locking indentation 3 is one of a circle, a semicircle, a triangle and a polygon.
The present embodiment further provides: an internal thread is arranged in the body 1, the pitch of the thread is P, and the diameter d=1.5p of the locking indentation 3.
The term "between" is not intended to mean between not only orientations and positions, but also interactions between different parts.
Although the terms of the body 1, the hexagonal nut portion 2, the locking indentations 3, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.
Claims (5)
1. A lock nut capable of improving locking function of internal threads, which is characterized in that: the locking device comprises a body, wherein the body comprises a hexagonal nut portion, 3 locking indentations are uniformly formed in the peripheral surface of the hexagonal nut portion, the body comprises an upper end and a lower end, and the locking indentations are arranged between the upper end and the lower end of the body.
2. The lock nut capable of improving the locking function of internal threads according to claim 1, wherein: the height of the body is h, and the height of the locking indentation is h1, and h1 is more than or equal to 1/3h and less than or equal to 2/3h.
3. A lock nut capable of improving locking function of internal thread according to claim 2, characterized in that: the h1=0.5 h.
4. The lock nut capable of improving the locking function of internal threads according to claim 1, wherein: the locking indentation is one of a circle, a semicircle, a triangle and a polygon.
5. The lock nut capable of improving the locking function of internal threads according to claim 1, wherein: an internal thread is arranged in the body, the pitch of the thread is P, and the diameter d=1.5P of the locking indentation is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320727026.0U CN219827430U (en) | 2023-03-29 | 2023-03-29 | Lock nut capable of improving locking function of internal thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320727026.0U CN219827430U (en) | 2023-03-29 | 2023-03-29 | Lock nut capable of improving locking function of internal thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219827430U true CN219827430U (en) | 2023-10-13 |
Family
ID=88279726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320727026.0U Active CN219827430U (en) | 2023-03-29 | 2023-03-29 | Lock nut capable of improving locking function of internal thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219827430U (en) |
-
2023
- 2023-03-29 CN CN202320727026.0U patent/CN219827430U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |