CN110219874B - Oblique hole type reinforced non-loose nut - Google Patents
Oblique hole type reinforced non-loose nut Download PDFInfo
- Publication number
- CN110219874B CN110219874B CN201910327003.9A CN201910327003A CN110219874B CN 110219874 B CN110219874 B CN 110219874B CN 201910327003 A CN201910327003 A CN 201910327003A CN 110219874 B CN110219874 B CN 110219874B
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- Prior art keywords
- inclined hole
- nut
- threaded
- bolt
- nut body
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- 238000011089 mechanical engineering Methods 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- F16B39/04—Locking of screws, bolts or nuts in which the locking takes place after screwing down with a member penetrating the screw-threaded surface of at least one part, e.g. a pin, a wedge, cotter-pin, screw
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses an inclined hole type reinforced non-loose nut, and belongs to the field of mechanical engineering. Comprises a nut body; the nut body is provided with a threaded inclined hole; the lower end of the threaded inclined hole is provided with a notch; the opening is formed in the internal thread of the nut body. The nut and bolt looseness prevention device is simple in structure, solves the problem of looseness between the nut and the bolt, and guarantees safety of practical application.
Description
Technical Field
The invention belongs to the field of mechanical engineering, and particularly relates to an inclined hole type reinforced non-loose nut.
Background
Nut and bolt are the most commonly used parts for fastening, and the commonly used nut and bolt is used on some mechanical devices. The nut can be loosened due to vibration caused by mechanical operation, so that potential safety hazards are brought to production and life, normal operation of machinery is influenced, and particularly on a train running at a high speed, the nut can be easily loosened due to the vibration caused by the high-speed motion of the train, so that the safety of the train and passengers can be endangered. Some anti-loosening nuts in the market adopt an injection molding process to increase the friction force between the nut and the bolt, but can still loosen under high-strength vibration, and the plastic is not durable in long-term weathering. In the market, special bolts or special gaskets are required to be matched with other anti-loosening nuts, and the anti-loosening principle of the anti-loosening nuts is that a plurality of rough edges and corners are arranged on the nuts or the gaskets to increase the friction force of stress surfaces of the nuts or the gaskets and delay the loosening time of the nuts, so that the nuts can not be loosened forever in the true sense, the production process is complex, and the production materials are also required to be harsh.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an inclined hole type reinforced non-loose nut so as to solve the problem that the nut is easy to loose under high-frequency vibration in the prior art.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
an inclined hole type reinforced non-loose nut comprises a nut body;
the nut body is provided with a threaded inclined hole;
the lower end of the threaded inclined hole is provided with a notch;
the opening is formed in the internal thread of the nut body.
Further, the nut body comprises an inclined hole type nut.
Further, the axis of the threaded oblique hole is coplanar with but not parallel to the axis of the nut body.
Furthermore, an included angle formed by the axis of the threaded inclined hole and the axis of the nut body is 0-45 degrees.
Further, the number of the threaded inclined holes is more than or equal to 1.
Further, the thread pitch of the nut body is the same as that of the threaded inclined hole.
Furthermore, the device also comprises a small bolt matched with the thread of the threaded inclined hole; and the top of the small bolt is provided with an inner hexagonal screw.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the threaded inclined hole is formed in the nut body, the opening is formed in the internal thread of the nut body, when the small bolt is screwed into the threaded inclined hole, the small bolt and the external thread of the large bolt can be meshed together at the opening, and the large bolt can be tightly held on the nut body and cannot be loosened under the action of the extrusion force of the small bolt, so that the purpose that the nut cannot be loosened under high-frequency vibration is realized, the thread cannot be damaged, the structure is simple, and the practical application safety is ensured.
Drawings
FIG. 1 is a view of the nut body of the present invention;
FIG. 2 is a view of the structure of a gap A;
FIG. 3 is a view of the structure of the opening B;
FIG. 4 is a view of the structure of a small bolt A;
FIG. 5 is a top view of the small bolt A;
FIG. 6 is a cross-sectional side view of a threaded oblique hole A;
FIG. 7 is a cross-sectional side view of a threaded oblique hole B;
FIG. 8 is a cross-sectional view of the assembly;
FIG. 9 is an assembly view;
figure 10 is an exploded view of the assembly;
FIG. 11 is a force analysis diagram of a large bolt;
FIG. 12 is a graph showing the position distribution of the inclined hole;
fig. 13 is a schematic view of the thread engagement of a large bolt and a small bolt.
Reference numerals: 1-a nut body; 2-a threaded inclined hole A; 3-a threaded inclined hole B; 4-internal threads of the nut; 5-opening A; 6-opening B; 7-small bolt A; 8-small bolt B; 9-small bolt A external thread; 10-small bolt B external thread; 11-inner hexagonal screw; 12-big bolt; 13-big bolt external thread; 14-target object.
Detailed Description
The invention is further described below. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, 2, 3, 4, 5, 6 and 7, the inclined hole type reinforced non-loose nut comprises a nut body 1; the nut body 1 is provided with a threaded inclined hole A2 and a threaded inclined hole B3; the lower ends of the threaded inclined hole A2 and the threaded inclined hole B3 are provided with a notch A5 and a notch B6 which correspond to each other; the gap A5 and the gap B6 are arranged on the internal thread 4 of the nut, and the axes of the inclined thread hole A2 and the inclined thread hole B3L 2、L 3Are all aligned with the axis of the nut body 1L 1Coplanar but not parallel and forming an angleθAs shown in fig. 6 and 7.
The axis of the threaded inclined hole A2 and the axis of the threaded inclined hole B3 are both the same as the axis of the nut body 1L 1And therefore, the bottoms of the inclined screw hole A2 and the inclined screw hole B3 are respectively provided with two gaps, namely a gap A5 and a gap B6.
As shown in fig. 4, 5 and 9, the oblique threaded hole a2 and the oblique threaded hole B3 may further be provided with a small bolt a7 and a small bolt B8 which are matched with the small bolt a7 and the small bolt B8, the top of the small bolt a7 and the small bolt B8 is provided with an inner hexagonal screw port 11, the small bolt a7 and the small bolt B8 may be screwed into the oblique threaded hole a2 and the oblique threaded hole B3 by a hexagonal screwdriver, and when screwed into a certain depth, the bottom of the small bolt a7 and the small bolt B8 will be exposed from the notch a5 and the notch B6.
As shown in fig. 8 and 13, the large bolt 12 can be screwed into the nut body 1, and the small bolt a external thread 9 and the small bolt B external thread 10 are the same as the large bolt external thread 13 of the large bolt 12, when the small bolt a7 and the small bolt B8 are screwed into the oblique thread hole a2 and the oblique thread hole B3, respectively, the small bolt a external thread 9 and the small bolt B external thread 10 are just meshed with the large bolt external thread 13, and the meshing means that the crest of one bolt thread intersects with the root of the other bolt thread. When the threads of the threaded inclined hole A2 and the threaded inclined hole B3 are designed, the positions of the threads are adjusted to ensure that the thread tops and the thread bottoms of the small bolt A7 and the small bolt B8 and the large bolt 12 are meshed together.
As shown in fig. 11, due to the axes of the threaded inclined hole a2 and the threaded inclined hole B3L 2、L 3Respectively with the axis of the nut body 1L 1Coplanar but not parallel, therefore, when small bolt A7 and small bolt B8 are screwed into threaded inclined hole A2 and threaded inclined hole B3 all the time, small bolt A7, small bolt B8 and large bolt 12 meet at gap A5 and gap B6 respectively, small bolt A7 and small bolt B8 press large bolt 12, and large bolt 12 is pressed by pressing force F of small bolt A7 and small bolt B8 respectivelyA、FBAnd the elastic force F of the nut body 11Because the big bolt 12 is under the action of 3 extrusion forces, the resultant force is zero, and the big bolt 12 can be tightly held on the nut body 1 and cannot be loosened, so that the purpose of not loosening the nut is achieved.
As shown in fig. 12, the number of the inclined screw holes is 1 or more from the upper surface of the nut body 1 downward, and several more inclined screw holes may be provided, and in this embodiment, two inclined screw holes are used, which is the optimum number. The threaded inclined hole A2 and the threaded inclined hole B3 are respectively connected with the central point of the nut body 1OIncluded angle formed isα0 degree< α <180 degrees, in this embodimentαSet to 120 degrees.
The threads of the threaded inclined hole A2 and the threaded inclined hole B3 are matched with the threads of the small bolt A7 and the small bolt B8, and the small bolt A7 and the small bolt B8 can be installed on the threaded inclined hole A2 and the threaded inclined hole B3.
As shown in fig. 13, the thread pitch of small bolt a7 and small bolt B8 is the same as the thread pitch of large bolt 12, which ensures that small bolt a7 and small bolt B8 will snap together when they meet large bolt 12 at notch a5 and notch B6, without damaging the threads.
Axis of the threaded inclined hole A2L 2With the axis of the nut body 1L 1Included angle formed isθAxis of inclined threaded hole B3L 3With the axis of the nut body 1L 1The included angle is alsoθ0 degree< θ <45 degrees, in this exampleθIs 5 degrees.
The working principle is as follows:
as shown in fig. 8, 9, 10, and 11, the target object 14 is attached to the large bolt 12, the nut body 1 is attached, and the nut body 1 is screwed in. Then a small bolt A7 and a small bolt B8 are respectively arranged and screwed by a hexagonal screwdriver. When small bolt A7 and small bolt B8 are tightened, the bottoms of small bolt A7 and small bolt B8 meet and engage with large bolt 12 at notch A5 and notch B6 of nut body 1, respectively. When the small bolt A7 and the small bolt B8 are continuously screwed, the large bolt 12 is pressed by the small bolt A7 and the small bolt B8, so that the nut body 1 and the large bolt 12 are firmly held without loosening, and the large bolt 12 is pressed by three forces, so that the resultant force is zero, and the large bolt 12 and the nut body 1 are fastened.
The invention can effectively solve the equipment accident caused by the loosening of the common bolt device for fixing the equipment due to the continuous vibration of the equipment in railways, trains, automobiles and other engineering mechanical equipment, thereby being beneficial to improving the safety of the vibrating equipment in the using process. The method replaces the traditional anti-loosening methods such as various traditional nuts, nylon locknuts, on-site glue dispensing and the like, and meanwhile, the surface of the parts to be fastened and connected cannot be damaged.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. An inclined hole type reinforced non-loose nut is characterized by comprising a nut body;
the nut body is provided with a threaded inclined hole;
the lower end of the threaded inclined hole is provided with a notch;
the opening is formed in the internal thread of the nut body;
the nut body comprises an inclined hole type nut;
the threaded inclined hole comprises a threaded inclined hole A and a threaded inclined hole B; the included angles formed by the axes of the threaded inclined hole A and the threaded inclined hole B and the axis of the nut body are both 45 degrees; the threaded inclined hole A and the threaded inclined hole B are respectively connected with the central point of the nut bodyOForming an included angle of 120 degrees.
2. The oblique-hole reinforced non-loose nut of claim 1, wherein the axis of said threaded oblique hole is coplanar with but not parallel to the axis of the nut body.
3. The inclined hole type fastening anti-loosening nut as claimed in claim 1, wherein the thread pitch of the nut body and the threaded inclined hole is the same.
4. The inclined hole type reinforced non-loose nut as claimed in claim 1, further comprising a small bolt engaged with the thread of the inclined hole; and the top of the small bolt is provided with an inner hexagonal screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910327003.9A CN110219874B (en) | 2019-04-23 | 2019-04-23 | Oblique hole type reinforced non-loose nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910327003.9A CN110219874B (en) | 2019-04-23 | 2019-04-23 | Oblique hole type reinforced non-loose nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110219874A CN110219874A (en) | 2019-09-10 |
| CN110219874B true CN110219874B (en) | 2021-03-26 |
Family
ID=67820014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910327003.9A Active CN110219874B (en) | 2019-04-23 | 2019-04-23 | Oblique hole type reinforced non-loose nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110219874B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2134250Y (en) * | 1992-10-08 | 1993-05-26 | 中国华北电力联合公司北京电力设备总厂 | Changeable cone sleeve of boring stem |
| CN2233976Y (en) * | 1995-08-21 | 1996-08-28 | 郑州铁路分局装卸机械修配厂 | Double-ball inclined wedge type reinforced lock |
| CN202326625U (en) * | 2011-11-26 | 2012-07-11 | 广州市昊志机电股份有限公司 | Locking nut structure for ball high-speed mechanical main shaft |
| CN102808837A (en) * | 2012-08-21 | 2012-12-05 | 杨宇 | Never-dropping nut |
| CN104675831A (en) * | 2015-03-06 | 2015-06-03 | 国家电网公司 | Anti-loosening bolt |
| JP6934161B2 (en) * | 2017-02-24 | 2021-09-15 | ボルトエンジニア株式会社 | Fastening structure |
| CN207049168U (en) * | 2017-07-12 | 2018-02-27 | 田国庆 | A kind of anti-loosening bolt and nut |
| CN207297591U (en) * | 2017-08-17 | 2018-05-01 | 秦征豹 | A kind of YCFB locking nuts |
-
2019
- 2019-04-23 CN CN201910327003.9A patent/CN110219874B/en active Active
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| Publication number | Publication date |
|---|---|
| CN110219874A (en) | 2019-09-10 |
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