CN115573990A - Non-loosening nut - Google Patents
Non-loosening nut Download PDFInfo
- Publication number
- CN115573990A CN115573990A CN202110683536.8A CN202110683536A CN115573990A CN 115573990 A CN115573990 A CN 115573990A CN 202110683536 A CN202110683536 A CN 202110683536A CN 115573990 A CN115573990 A CN 115573990A
- Authority
- CN
- China
- Prior art keywords
- nut
- annular plate
- bolt
- loosening
- taper hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 6
- 238000012856 packing Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/10—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt
- F16B39/108—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt with a locking washer under the nut or bolt head having at least one tongue or lug folded against the nut or bolt head, or against the object itself
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The invention discloses a non-loosening nut, which comprises a nut and a washer, wherein the lower part of an internal thread of the nut is provided with a taper hole, the washer is provided with an annular plate, the annular plate is provided with a notch, and the nut is sleeved outside the annular plate of the washer through the tight fit of the taper hole, and the invention has the advantages that: the nut can not be detached from the bolt, so that the locking and anti-loosening functions are achieved, and the nut is very suitable for use occasions with high requirements on anti-loosening performance.
Description
Technical Field
The invention relates to the technical field of nuts, in particular to the technical field of anti-loosening nuts.
Background
The anti-loose nut is a nut with anti-loose function, the anti-loose mode adopted by the anti-loose nut in the prior art mainly comprises mechanical anti-loose, rivet-punch anti-loose, friction anti-loose, structure anti-loose and the like, wherein the friction anti-loose mode is the most widely applied anti-loose mode, a positive pressure which is not changed along with external force is generated between a locking nut pair in the mode so as to generate a friction force which can prevent the locking nut pair from rotating relatively, the positive pressure can be completed by axially or simultaneously compressing the locking nut pair in two directions, for example, an anti-slip washer is adopted, the anti-slip effect is improved by arranging anti-slip teeth on the surface of the common anti-slip washer at present, therefore, the anti-loose effect is not very ideal, the locked nut can still be easily disassembled, and the anti-loose nut cannot adapt to the use occasion with higher requirement on the anti-loose performance.
Disclosure of Invention
The invention aims to solve the defects and provide the non-loosening nut which has good loosening prevention effect and is very suitable for use occasions with higher requirements on loosening prevention performance.
The technical solution adopted by the present invention to solve the above technical problems is as follows:
the nut is characterized by comprising a nut and a washer, wherein a taper hole is formed in the lower portion of an internal thread of the nut, an annular plate is arranged on the washer, a notch is formed in the annular plate, and the nut is sleeved outside the annular plate of the washer through the tight fit of the taper hole.
The inner peripheral wall of the nut taper hole is provided with anti-loosening teeth, and the anti-loosening teeth are in contact with the outer peripheral wall of the annular plate.
The cross section of the anti-loosening teeth is wedge-shaped.
The annular plate is conical.
The notches on the annular plate are uniformly distributed along the circumferential direction.
The invention adopts the technical proposal to achieve the following beneficial effects: when the non-loosening nut is used, the washer is sleeved on the bolt to be connected with the nut, then the nut is screwed on the bolt until the taper hole of the nut is sleeved on the outer side of the annular plate of the washer, the nut is screwed continuously, the annular plate of the washer is extruded through the taper hole of the nut, the annular plate can shrink after being extruded by the taper hole due to the notch formed in the annular plate, and when the annular plate on the washer is made of a selected material, the material with hardness lower than that of the bolt and the nut anti-loosening teeth is selected, so that the bolt is tightly held after the annular plate shrinks, and the threads of the bolt can be embedded into the inner peripheral wall of the annular plate, and the bolt is tightly locked with the annular plate. When the taper hole extrusion annular slab of nut, in the periphery wall of locking tooth embedding annular slab on the nut taper hole internal perisporium, because the cross section of locking tooth is the wedge, consequently make the nut only can unidirectional rotation to make the nut only can rotate towards the direction of screwing up the nut, make the nut can't follow the bolt and dismantle, played fine locking effect, very be applicable to the use occasion that has higher requirement to locking performance.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a bottom view of the nut of FIG. 1;
FIG. 3 is a top view of the gasket of FIG. 1;
fig. 4 is a schematic view of the present invention in use.
Detailed Description
By figure 1, figure 2 and figure 3 show, the nut that can not become flexible, it is including nut 1 and packing ring 2 taper hole 4 has been seted up to the lower part of 1 internal thread 3 of nut, is provided with locking tooth 5 on the internal perisporium of 1 taper hole 4 of nut, and the cross section of this locking tooth 5 is the wedge be provided with annular plate 6 on the packing ring 2, this annular plate 6 is the toper, has seted up notch 7 on annular plate 6, and notch 7 on annular plate 6 is along circumference equipartition, and nut 1 is put in the annular plate 6 outside of packing ring 2 through its 4 tight fits of taper hole, and locking tooth 5 contacts with the periphery wall of annular plate 6.
As shown in fig. 4, when the non-loosening nut of the present invention is used, firstly, the washer 2 is sleeved on the bolt 8 to be connected with the nut 1, then the nut 1 is screwed on the bolt 8 until the tapered hole 4 of the nut 1 is sleeved on the outer side of the annular plate 6 of the washer 2, the nut 1 is screwed continuously, the annular plate 6 of the washer 2 is extruded through the tapered hole 4 of the nut 1, because the annular plate 6 is provided with the notch 7, the annular plate 6 can be shrunk after being extruded by the tapered hole 4, when the material of the annular plate 6 on the washer 2 is selected, the material with hardness lower than that of the bolt 8 and the lockteeth 5 of the nut 1 is selected, so that the bolt 8 is clasped after the annular plate 6 is shrunk, and the thread of the bolt 8 can be embedded into the inner peripheral wall of the annular plate 6, thereby the bolt 8 and the annular plate 6 are locked. When the taper hole 4 extrusion annular plate 6 of nut 1, in the periphery wall of locking tooth 5 embedding annular plate 6 on the internal perisporium of taper hole 4 of nut 1, because the cross section of locking tooth 5 is the wedge, consequently make nut 1 can only unidirectional rotation to make nut 1 can only rotate towards the direction of screwing up nut 1, make nut 1 can't dismantle from bolt 8, played fine locking effect.
Claims (6)
1. The nut that can not become flexible, its characterized in that: the nut is sleeved outside the annular plate of the washer through tight fit of the taper hole.
2. The non-loosening nut as defined in claim 1, wherein: the inner peripheral wall of the nut taper hole is provided with anti-loosening teeth, and the anti-loosening teeth are in contact with the outer peripheral wall of the annular plate.
3. The non-loosening nut as defined in claim 2, wherein: the cross section of the anti-loosening teeth is wedge-shaped.
4. The non-loosening nut as claimed in claim 1, 2 or 3, wherein: the annular plate is conical.
5. The non-loosening nut as defined in claim 4, wherein: the notches on the annular plate are uniformly distributed along the circumferential direction.
6. The non-loose nut of claim 1, 2 or 3, wherein: when the locking device is used, the washer is sleeved on the bolt to be connected with the nut, the nut is screwed on the bolt until the taper hole of the nut is sleeved outside the annular plate of the washer, the nut is continuously screwed, the annular plate of the washer is extruded through the taper hole of the nut, the annular plate is enabled to shrink after being extruded by the taper hole due to the notch formed in the annular plate, when the annular plate on the washer is made of selected materials, the materials with hardness lower than that of the bolt and the nut locking teeth are selected, so that the bolt is tightly held after the annular plate shrinks, the screw teeth of the bolt can be embedded into the inner peripheral wall of the annular plate, the bolt is locked with the annular plate, when the taper hole of the nut extrudes the annular plate, the locking teeth on the inner peripheral wall of the taper hole of the nut are embedded into the outer peripheral wall of the annular plate, and the cross section of the locking teeth is in a wedge shape, so that the nut can only rotate in one direction, the nut can only rotate in the direction of screwing the nut, the nut cannot be detached from the bolt, and a good locking effect is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110683536.8A CN115573990A (en) | 2021-06-21 | 2021-06-21 | Non-loosening nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110683536.8A CN115573990A (en) | 2021-06-21 | 2021-06-21 | Non-loosening nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115573990A true CN115573990A (en) | 2023-01-06 |
Family
ID=84578786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110683536.8A Pending CN115573990A (en) | 2021-06-21 | 2021-06-21 | Non-loosening nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115573990A (en) |
-
2021
- 2021-06-21 CN CN202110683536.8A patent/CN115573990A/en active Pending
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |