CN110714968A - Anti-loosening nut assembly - Google Patents
Anti-loosening nut assembly Download PDFInfo
- Publication number
- CN110714968A CN110714968A CN201911003231.7A CN201911003231A CN110714968A CN 110714968 A CN110714968 A CN 110714968A CN 201911003231 A CN201911003231 A CN 201911003231A CN 110714968 A CN110714968 A CN 110714968A
- Authority
- CN
- China
- Prior art keywords
- nut
- loosening
- snap ring
- trapezoidal
- locking
- 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
- 125000004122 cyclic group Chemical group 0.000 claims abstract 2
- 239000011148 porous material Substances 0.000 claims description 5
- 101150097977 arch-1 gene Proteins 0.000 claims 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The invention discloses a locking nut assembly which comprises a nut and a locking snap ring. The upper end face and the two opposite sides of the wall of the nut hole are respectively provided with a trapezoidal groove. The locking snap ring is cyclic annular, and the size matches with the nut. The lower end face and the two opposite sides of the hole wall of the anti-loosening clamping ring are respectively provided with a trapezoidal protrusion, and the trapezoidal protrusions and the trapezoidal grooves on the upper end face of the nut are matched to form a concave-convex tooth structure. The inner diameter of the anti-loosening clamping ring is provided with a sawtooth-shaped bulge which is matched with a sawtooth-shaped groove on the screw rod, and the sawtooth-shaped bulge is arranged into a concave-convex meshing structure. After the nut is screwed into the screw rod at a required position, the two trapezoidal bulges on the lower end surface of the anti-loosening clamping ring are aligned and installed in the two trapezoidal grooves on the upper end surface of the nut, and meanwhile, the serrated bulges on the inner diameter of the anti-loosening clamping ring are aligned and installed in the serrated grooves on the screw rod to form a concave-convex meshing structure. When the nut is loosened by vibration, the nut can be blocked by the concave-convex meshing structure of the nut, the anti-loosening clamping ring and the lead screw, and the nut cannot be loosened. The anti-loosening nut assembly can thoroughly solve the problem that the nut is loosened.
Description
Technical Field
The invention relates to the technical field of fasteners, in particular to a locking nut.
The locking by using the screw is already the existing technology of many industries, and the existing screw usually has the problem of poor engagement between the external thread and the internal thread of the nut, which often causes the screw and the nut to loosen in a vibrating environment or after long-term use. To improve this problem, many prior proposals have been made to improve the screw structure. The friction force between the external thread and the internal thread of the nut is increased to prevent the loosening, but the loosening problem cannot be thoroughly solved, and the structure is complex and the cost is high.
In view of the above disadvantages, there is a need for a locking nut that overcomes the above disadvantages.
The invention aims to provide a locking nut which thoroughly solves the defects of the prior art.
The anti-loosening nut assembly comprises a nut and an anti-loosening clamping ring.
The nut of the invention has the characteristics that: the screw nut pore wall up end, relative both sides respectively have a mounting groove, and every mounting groove is trapezoidal.
The anti-loose snap ring has the characteristics that: the outer diameter and the inner diameter of the anti-loosening clamping ring are consistent with those of the nut. The inner diameter surface of the anti-loosening clamping ring is provided with a plurality of triangular protrusions which are connected to form a saw-tooth shape. The lower end face and the two opposite sides of the anti-loosening clamping ring are respectively provided with a trapezoidal convex part. And the concave-convex tooth-matching structure is matched with the groove on the upper end surface of the wall of the nut hole. The outer diameter of the anti-loosening clamping ring is set to be in an outer hexagon shape, and the size of the anti-loosening clamping ring is consistent with that of the outer hexagon of the nut.
Description of the drawings:
fig. 1 is a front view schematically illustrating a locking nut assembly according to the present invention.
Fig. 2 is a top view schematic of the locknut assembly of the present invention.
Fig. 3 is a top view of the locking nut of the present invention.
Fig. 4 is a schematic view of the anti-loosening clamp ring of the anti-loosening nut assembly of the present invention in a top view.
Fig. 5 is an exploded perspective view of the locking nut assembly of the present invention.
Fig. 6 is a partially enlarged view of the locknut assembly of the present invention.
①, anti-loose clamp ring ②, nut trapezoidal groove ③, nut ④, trapezoidal convex part ⑤ on the lower end face of the anti-loose clamp ring, triangular protrusion ⑥, anti-slip strip ⑦ of the convex part of the anti-loose clamp ring, anti-slip strip ⑧ of the groove on the wall of the nut hole, and local part of concave-convex meshing combination part of the nut and the anti-loose clamp ring in dotted line
Detailed Description
The invention will be further described with reference to the drawings and examples, but the invention is not limited thereto. All simple equivalent changes and modifications made in accordance with the claims and the contents of the specification are within the scope of the claims.
The anti-loose nut assembly comprises a nut ③ and an anti-loose snap ring ①, wherein two trapezoidal grooves ② are formed in the upper end face of the wall of the nut, the nut is matched with two trapezoidal protrusions ④ formed in the lower end face of the anti-loose snap ring ① and is arranged in a concave-convex meshing structure, saw-toothed triangular protrusions ⑤ are arranged in the inner diameter of the anti-loose snap ring and are matched with the saw-toothed grooves in the tops of external threads on a screw rod and are arranged in a concave-convex meshing structure, the outer diameter of the anti-loose snap ring is arranged to be in an outer hexagon and is consistent with the outer hexagon of the nut, and the outer diameter and the inner diameter of the anti-loose snap ring are consistent with the outer diameter and the.
The working principle is as follows: after the anti-loosening nut is screwed into a required position of the screw rod, the two trapezoidal bulges at the bottom of the anti-loosening clamping ring are aligned and installed into the two trapezoidal grooves on the upper end surface of the nut, and meanwhile, the saw-toothed bulges at the inner diameter of the anti-loosening clamping ring are aligned and installed into the saw-toothed grooves on the screw rod to form a concave-convex meshing structure. If the nut is loosened by vibration, the nut can be blocked by the nut, the anti-loosening clamping ring and the concave-convex meshing structure on the lead screw, so that the nut cannot be loosened. When the anti-loosening clamping ring is taken out, the nut can rotate freely.
Claims (5)
1. The utility model provides a locking nut subassembly, includes nut ③ and locking snap ring ①, its characterized in that nut ① 0 has the through-hole, sets up the internal thread in the through-hole, the up end of nut pore wall, relative both sides respectively are provided with a recess ① 1, locking snap ring ① 2 main part set to with nut assorted cyclic annular, terminal surface under locking snap ring ① pore wall, relative both sides respectively are provided with a arch ① 3, and the recess ② phase-match of nut pore wall up end sets up to unsmooth meshing structure, the surface of locking snap ring ① internal diameter week is provided with the arch ⑤ of uncertain number, the uncertain number of the arch ④ of terminal surface under the recess ② of nut ③ pore wall up end and the locking snap ring ①.
2. The anti-loose nut assembly as defined in claim 1, wherein the grooves ② are trapezoidal in the upper end surface of the wall of the nut ③, and the trapezoidal slope has an indefinite number of anti-slip protrusions ⑦.
3. The anti-loosening nut assembly as defined in claim 1, wherein the diameter and inner diameter of the anti-loosening snap ring ① are substantially the same as those of the nut ③, and the outer diameter of the anti-loosening snap ring ① is formed in an outer hexagonal shape and substantially the same as that of the nut ③.
4. The locking nut assembly of claim 1, wherein each protrusion ⑤ formed on the inner diameter of the locking ring ① is a triangular body, and all the triangular protrusions ⑤ have the same shape and are connected to form a saw-tooth shape.
5. The anti-loosening nut assembly as claimed in claim 1, wherein the protrusions ④ of the lower end surface of the anti-loosening snap ring ① are formed in a trapezoidal shape, and the trapezoidal slope has an indefinite number of anti-loosening protrusions ⑥.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911003231.7A CN110714968A (en) | 2019-10-22 | 2019-10-22 | Anti-loosening nut assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911003231.7A CN110714968A (en) | 2019-10-22 | 2019-10-22 | Anti-loosening nut assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110714968A true CN110714968A (en) | 2020-01-21 |
Family
ID=69213980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911003231.7A Pending CN110714968A (en) | 2019-10-22 | 2019-10-22 | Anti-loosening nut assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110714968A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109997A (en) * | 2020-08-25 | 2022-03-01 | 冯鲁民 | A nut anti-loose fitting and protective cap |
-
2019
- 2019-10-22 CN CN201911003231.7A patent/CN110714968A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109997A (en) * | 2020-08-25 | 2022-03-01 | 冯鲁民 | A nut anti-loose fitting and protective cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200121 |
|
| WD01 | Invention patent application deemed withdrawn after publication |