CN110953238A - Anti-loosening bolt - Google Patents
Anti-loosening bolt Download PDFInfo
- Publication number
- CN110953238A CN110953238A CN201911409038.3A CN201911409038A CN110953238A CN 110953238 A CN110953238 A CN 110953238A CN 201911409038 A CN201911409038 A CN 201911409038A CN 110953238 A CN110953238 A CN 110953238A
- Authority
- CN
- China
- Prior art keywords
- locking
- nut
- bolt
- positioning
- positioning nut
- 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
- 230000002265 prevention Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000002045 lasting effect 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
- 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
- F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
-
- 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
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/284—Locking by means of elastic deformation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention relates to the field of bolt looseness prevention, in particular to a looseness-prevention bolt, which comprises: a bolt; the positioning nut is screwed on the bolt; the locking nut is selected on the bolt, is positioned above the positioning nut and is in contact with the positioning nut, and a locking part is arranged at the lower end of the locking nut; and the positioning part is arranged at the top end of the positioning nut and is positioned in the locking part. The invention adopts the reducing arc plate to enable the arc plate to clamp the bolt inwards through the locking groove, thereby effectively solving the problem of looseness between the nut and the fastened piece and further realizing long-time locking.
Description
Technical Field
The invention relates to the field of bolt looseness prevention, in particular to an anti-loosening bolt.
Background
Bolt or bolt cooperation nut are widely used as the fastener in many fields, but on some machinery that can shake, the bolt can become flexible for a long time, can't reach the locking effect, have very big potential safety hazard, for example, the motor car, the rail, the car, the support etc., very big loss and bodily injury can be brought to not hard up hidden danger, for solving not hard up phenomenon, can add spring shim between nut or bolt and by the fastener, prevent to become flexible, but this kind of locking effect locking time is short, need maintain in the passage of time, so need a fastener that relaxes the effect is lasting.
Disclosure of Invention
The invention provides a loosening-preventing bolt, which solves the problem that a fastening piece is loosened by long-time bolt matching with a nut, increases loosening-preventing time and enables the fastened piece to be in a clamped state for a long time.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
a locking bolt comprising:
a bolt;
the positioning nut is screwed on the bolt;
the locking nut is selected on the bolt, is positioned above the positioning nut and is in contact with the positioning nut, and a locking part is arranged at the lower end of the locking nut;
and the positioning part is arranged at the top end of the positioning nut and is positioned in the locking part.
The positioning portion comprises a pair of arc plates which are fixed on the top end of the positioning nut oppositely and coaxial with the positioning nut, and the diameter of the outer surface of each arc plate is gradually increased from one end to the other end.
A radial notch is formed between one end of the circular arc plate with the largest diameter and the positioning nut.
The arc plate is internally provided with an internal thread, and the internal thread is meshed with the bolt.
The locking part is two communicated locking grooves, the two sides of the inner wall surface of the locking nut are respectively provided with the locking grooves, the locking grooves are coaxial with the locking nut, the inner diameter of each locking groove is gradually increased from one end to the other end, and the positioning part is positioned in each locking groove.
The invention has the beneficial effects that: because the variable-diameter arc plate is adopted, the arc plate clamps the bolt inwards through the locking groove, the problem that the nut and the fastened piece are loosened is effectively solved, and long-time locking is further realized.
Because the internal thread is opened in the circular arc board, through internal thread and bolt meshing, when the circular arc board presss from both sides tight bolt, the circular arc board forms spacingly in the axial, reaches the locking effect.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a schematic view of the lock nut of the present invention.
Fig. 4 is a bottom view of the lock nut of the present invention.
Fig. 5 is a schematic structural view of the positioning nut of the present invention.
Fig. 6 is a top view of the positioning nut of the present invention.
In the figure: 1-a bolt; 2-positioning the nut; 3-locking the nut; 4-arc plate; 5-internal thread; 6-locking groove.
Detailed Description
Example 1:
referring to fig. 1 to 2, which are schematic structural views of embodiment 1 of the present invention, a locking bolt is characterized by including:
a bolt 1;
a positioning nut 2, wherein the positioning nut 2 is screwed on the bolt 1;
the locking nut 3 is selected on the bolt 1, the locking nut 3 is positioned above the positioning nut 2 and is contacted with the positioning nut 2, and the lower end of the locking nut 3 is provided with a locking part;
and the positioning part is arranged at the top end of the positioning nut 2 and is positioned in the locking part.
In actual use: firstly, the bolt 1 penetrates through a fastened piece, then the locking part of the locking nut 3 is sleeved outside the positioning part of the positioning nut 2, then the positioning nut 2 and the locking nut are meshed with the bolt 1 to be screwed in, so that the positioning nut 2 is contacted with the fastened piece, then the positioning nut 2 is screwed through a wrench, the positioning nut 2 is matched with the bolt 1 to clamp the fastened piece, then the locking nut is screwed through the wrench, the locking nut is matched with the bolt 1 to clamp the locking nut and the fastened piece, meanwhile, the positioning part is controlled through the locking part to lock the bolt 1, and two locking modes are formed.
Example 2:
on the basis of embodiment 1, referring to fig. 4-5, the present embodiment is different in that: the positioning portion comprises a pair of arc plates 4, the arc plates 4 are fixed on the top end of the positioning nut 2 relatively, the arc plates 4 are coaxial with the positioning nut 2, and the outer surface diameters of the arc plates 4 are gradually increased from one end to the other end.
And a radial notch is formed between one end of the maximum diameter of the circular arc plate 4 and the positioning nut 2.
In actual use: because the diameter of the outer surface of the arc plate 4 is gradually increased from one end to the other end, when the locking nut 3 is locked, the end with the maximum diameter of the arc plate 4 is inwards closed, and the two sides of the bolt 1 are clamped through the two arc plates 4 to complete locking.
Example 3:
on the basis of embodiment 2, referring to fig. 2 and 5, the present embodiment is different in that: an internal thread 5 is arranged in the circular arc plate 4, and the internal thread 5 is meshed with the bolt 1.
In actual use: the internal thread 5 on the arc plate 4 is kneaded with the bolt 1, and the internal thread 5 is tightly attached to the bolt 1 during locking, so that the anti-loosening effect is achieved again.
Example 4:
on the basis of embodiment 1 or 2 or 3, referring to fig. 3-4, the difference of this embodiment is that: the locking part is two communicated locking grooves 6, the locking grooves 6 are formed in two sides of the inner wall surface of the locking nut 3 respectively, the locking grooves 6 are coaxial with the locking nut 3, the inner diameter of each locking groove 6 is gradually increased from one end to the other end, and the positioning part is located in the locking grooves 6.
In actual use: because the inner diameter of the locking groove 6 is gradually increased from one end to the other end, when the locking nut 3 rotates, the locking groove 6 enables one end of the arc plate 4 to be inwards closed when the locking groove 6 rotates through the structure with different inner diameters of the locking groove 6, the bolt 1 is clamped, and the screw locking is completed.
While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and the scope of the present invention is within the scope of the claims.
Claims (5)
1. A locking bolt, comprising:
a bolt (1);
a positioning nut (2), wherein the positioning nut (2) is screwed on the bolt (1);
the locking nut (3) is selected from the bolt (1), the locking nut (3) is positioned above the positioning nut (2) and is in contact with the positioning nut (2), and a locking part is arranged at the lower end of the locking nut (3);
and the positioning part is arranged at the top end of the positioning nut (2) and is positioned in the locking part.
2. A locking bolt as defined in claim 1, wherein: the positioning portion comprises a pair of arc plates (4), the arc plates (4) are fixed to the top end of the positioning nut (2) relatively, the arc plates (4) are coaxial with the positioning nut (2), and the outer surface diameter of the arc plates (4) is gradually increased from one end to the other end.
3. A locking bolt as defined in claim 2, wherein: a radial notch is formed between one end of the maximum diameter of the circular arc plate (4) and the positioning nut (2).
4. A locking bolt as defined in claim 2, wherein: an internal thread (5) is arranged in the circular arc plate (4), and the internal thread (5) is meshed with the bolt (1).
5. A locking bolt as defined in claim 1, wherein: the locking part is two communicated locking grooves (6), the locking grooves (6) are formed in two sides of the inner wall surface of the locking nut (3) respectively, the locking grooves (6) are coaxial with the locking nut (3), the inner diameter of each locking groove (6) is gradually increased from one end to the other end, and the positioning part is located in each locking groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911409038.3A CN110953238A (en) | 2019-12-31 | 2019-12-31 | Anti-loosening bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911409038.3A CN110953238A (en) | 2019-12-31 | 2019-12-31 | Anti-loosening bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110953238A true CN110953238A (en) | 2020-04-03 |
Family
ID=69985212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911409038.3A Pending CN110953238A (en) | 2019-12-31 | 2019-12-31 | Anti-loosening bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110953238A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114421660A (en) * | 2022-01-21 | 2022-04-29 | 上海盘毂动力科技股份有限公司 | Stator core fixing structure of axial magnetic field motor |
-
2019
- 2019-12-31 CN CN201911409038.3A patent/CN110953238A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114421660A (en) * | 2022-01-21 | 2022-04-29 | 上海盘毂动力科技股份有限公司 | Stator core fixing structure of axial magnetic field motor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |