CN216589502U - Double-pad check bolt - Google Patents
Double-pad check bolt Download PDFInfo
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- CN216589502U CN216589502U CN202120866098.4U CN202120866098U CN216589502U CN 216589502 U CN216589502 U CN 216589502U CN 202120866098 U CN202120866098 U CN 202120866098U CN 216589502 U CN216589502 U CN 216589502U
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- loose washer
- loose
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Abstract
The double-cushion anti-loose bolt consists of a bolt body (1) with a groove, a nut (2), an upper anti-loose washer (3) and a lower anti-loose washer (4). Double-pad check bolt through the embedding grooved bolt body (1) helicla flute last lock washer (3) lower lock washer (4) with nut (2) constitute the locking structure to reach locking purpose, this kind of structure is insensitive to influence bolt looseness factors such as lateral vibration power, variable load, temperature variation, double-pad check bolt simple structure, locking effectual, non-maintaining, overcome not enough among the prior art, solved the problem that current check bolt exists.
Description
Technical Field
The invention relates to the technical field of bolt fastening, in particular to a double-pad anti-loose bolt.
Background
The bolt fastening mode has wide application in the industrial field and various use occasions, and because some bolt use occasions have higher requirements on bolt fastening, and the bolt can loosen or even fall off when being influenced by factors such as temperature, load change and the like, the bolt fastening in many use occasions has the anti-loosening function. In order to avoid the problems of looseness and failure of bolt connection in the working process, a plurality of methods are adopted by many people, and various bolt connection anti-loosening structures are designed, but the methods and the structural designs are not satisfactory in a plurality of use occasions at present, and need to be perfect.
Disclosure of Invention
The invention aims to provide a double-pad anti-loose bolt which has a good anti-loose effect, is maintenance-free, can be repeatedly used, can overcome the defects in the prior art and solves the problems of the existing anti-loose bolt.
The invention is realized by the following technical scheme:
the double-pad anti-loosening bolt is composed of a bolt body (1) with a groove, a nut (2), an upper anti-loosening washer (3) and a lower anti-loosening washer (4).
The bolt body (1) with the groove is provided with an upper anti-loosening gasket assembly spiral groove and a lower anti-loosening gasket assembly spiral groove, the spiral direction of the upper anti-loosening gasket assembly spiral groove is opposite to the spiral direction of the thread of the bolt body with the groove (1) with the groove, the spiral angle beta 1 of the upper anti-loosening gasket assembly spiral groove is larger than the spiral angle alpha 1 of the spiral surface of the upper anti-loosening gasket (3), the complementary angle of the spiral angle beta 1 of the upper anti-loosening gasket assembly spiral groove is larger than the spiral angle lambda of the thread, the spiral angle beta 2 of the lower anti-loosening gasket assembly spiral groove is larger than the spiral angle beta 1 of the upper anti-loosening gasket assembly spiral groove, the complementary angle of the spiral angle beta 2 of the lower anti-loosening gasket assembly spiral groove is larger than the spiral angle 2 lambda of the thread of the bolt body with the groove (1), the central shaft of the upper anti-loosening gasket assembly spiral groove of the bolt body with the thread central shaft of the bolt body with the groove (1) with the groove, the central shaft of the lower anti-loosening gasket assembly spiral groove of the bolt body with the groove (1) with the thread of the bolt body with the groove (1) with the groove The central axes are coaxial.
One end of the upper anti-loose washer (3) is provided with a radially and uniformly distributed spiral surface, the central axis of the spiral surface of the upper anti-loose washer (3) is coaxial with the central axis of the upper anti-loose washer (3), the spiral direction of the spiral surface of the upper anti-loose washer (3) is opposite to the spiral direction of the bolt body (1) with the bolt with the groove, the inner ring surface of the upper anti-loose washer (3) is provided with a spiral stopping part, the central axis of the spiral stopping part of the inner ring surface of the upper anti-loose washer (3) is coaxial with the central axis of the upper anti-loose washer (3), the spiral direction of the radially and uniformly distributed spiral surface of the upper anti-loose washer (3) is the same as the spiral direction of the spiral stopping part of the inner ring surface of the upper anti-loose washer (3), and the spiral angle alpha 1 of the spiral surface of the upper anti-loose washer (3) is greater than the spiral angle lambda of the spiral angle of the spiral thread of the bolt body with the bolt with the groove.
One end of the lower anti-loose washer (4) is provided with a radially and uniformly distributed spiral surface, the central axis of the spiral surface of the lower anti-loose washer (4) is coaxial with the central axis of the lower anti-loose washer (4), the spiral direction of the spiral surface of the lower anti-loose washer (4) is opposite to the spiral direction of the bolt body (1) with the groove, the inner ring surface of the lower anti-loose washer (4) is provided with a spiral stopping, the central axis of the spiral stopping of the inner ring surface of the lower anti-loose washer (4) is coaxial with the central axis of the lower anti-loose washer (4), and the spiral angle alpha 2 of the spiral surface of the lower anti-loose washer (4) is equal to the spiral angle alpha 1 of the spiral surface of the upper anti-loose washer (3).
The spiral stopping section of the upper anti-loose washer (3) is the same as the section of the spiral groove of the upper anti-loose washer assembly spiral groove of the bolt body with the groove (1), the spiral angle beta 11 of the spiral stopping of the upper anti-loose washer (3) is equal to the spiral angle beta 1 of the spiral groove of the upper anti-loose washer assembly spiral groove of the bolt body with the groove (1), the spiral stopping direction of the upper anti-loose washer (3) is the same as the spiral angle beta 1 of the spiral groove of the upper anti-loose washer assembly spiral groove of the bolt body with the groove, and the spiral stopping of the upper anti-loose washer (3) is matched with the spiral groove of the upper anti-loose washer assembly spiral groove of the bolt body with the groove (1).
The spiral stopping section of the lower anti-loosening gasket (4) is the same as the section of the spiral groove of the lower anti-loosening gasket assembly spiral groove of the bolt body with the groove (1), the spiral angle beta 21 of the spiral stopping of the lower anti-loosening gasket (4) is equal to the spiral angle beta 2 of the spiral groove of the lower anti-loosening gasket assembly spiral groove of the bolt body with the groove (1), the spiral directions of the spiral stopping section of the lower anti-loosening gasket (4) and the spiral groove of the lower anti-loosening gasket assembly spiral groove of the bolt body with the groove (1) are the same, and the spiral stopping section of the lower anti-loosening gasket (4) is matched with the spiral groove of the lower anti-loosening gasket assembly spiral groove of the bolt body with the groove.
One end of the upper check washer (3) with the spiral surface is assembled opposite to one end of the lower check washer (4) with the spiral surface, and the assembly combination of the upper check washer (3) and the lower check washer (4) is arranged between the nut (2) and a fastened piece.
The advantages and effects are as follows:
the invention has the following advantages and beneficial effects:
1. the locking effect is good, and the moment of torsion adjustment is convenient, need not maintain.
2. The installation, adjustment and disassembly are convenient; can be repeatedly used.
Drawings
FIG. 1 is a schematic front view of the overall structure of a double-cushion check bolt;
FIG. 2 is a front schematic view of a grooved bolt body;
FIG. 3 is a left side schematic view of a slotted bolt body;
FIG. 4 is a schematic front view of the upper lock washer;
FIG. 5 is a cross-sectional view A-A of the upper lock washer in elevation;
FIG. 6 is a partial schematic view I of a cross-sectional view A-A of the upper lock washer;
FIG. 7 is a schematic front view of the lower lock washer;
FIG. 8 is a cross-sectional view of the lower lock washer taken along B-B in a front view;
FIG. 9 is a partial schematic view II of a cross-sectional view of the lower lock washer B-B.
Description of reference numerals:
1-a bolt body with a groove, 2-a nut, 3-an upper anti-loose washer, 4-a lower anti-loose washer, 5-a fastened piece I and 6-a fastened piece II;
Detailed Description
The invention is further described below with reference to the accompanying drawings:
the double-pad anti-loosening bolt is composed of a bolt body (1) with a groove, a nut (2), an upper anti-loosening washer (3) and a lower anti-loosening washer (4).
The bolt body (1) with the groove is provided with an upper anti-loosening gasket assembly spiral groove and a lower anti-loosening gasket assembly spiral groove, the spiral direction of the upper anti-loosening gasket assembly spiral groove is opposite to the spiral direction of the thread of the bolt body with the groove (1) with the groove, the spiral angle beta 1 of the upper anti-loosening gasket assembly spiral groove is larger than the spiral angle alpha 1 of the spiral surface of the upper anti-loosening gasket (3), the complementary angle of the spiral angle beta 1 of the upper anti-loosening gasket assembly spiral groove is larger than the spiral angle lambda of the thread, the spiral angle beta 2 of the lower anti-loosening gasket assembly spiral groove is larger than the spiral angle beta 1 of the upper anti-loosening gasket assembly spiral groove, the complementary angle of the spiral angle beta 2 of the lower anti-loosening gasket assembly spiral groove is larger than the spiral angle 2 lambda of the thread of the bolt body with the groove (1), the central shaft of the upper anti-loosening gasket assembly spiral groove of the bolt body with the thread central shaft of the bolt body with the groove (1) with the groove, the central shaft of the lower anti-loosening gasket assembly spiral groove of the bolt body with the groove (1) with the thread of the bolt body with the groove (1) with the groove The central axes are coaxial.
One end of the upper anti-loose washer (3) is provided with a radially and uniformly distributed spiral surface, the central axis of the spiral surface of the upper anti-loose washer (3) is coaxial with the central axis of the upper anti-loose washer (3), the spiral direction of the spiral surface of the upper anti-loose washer (3) is opposite to the spiral direction of the bolt body (1) with the bolt with the groove, the inner ring surface of the upper anti-loose washer (3) is provided with a spiral stopping part, the central axis of the spiral stopping part of the inner ring surface of the upper anti-loose washer (3) is coaxial with the central axis of the upper anti-loose washer (3), the spiral direction of the radially and uniformly distributed spiral surface of the upper anti-loose washer (3) is the same as the spiral direction of the spiral stopping part of the inner ring surface of the upper anti-loose washer (3), and the spiral angle alpha 1 of the spiral surface of the upper anti-loose washer (3) is greater than the spiral angle lambda of the spiral angle of the spiral thread of the bolt body with the bolt with the groove.
One end of the lower anti-loose washer (4) is provided with a radially and uniformly distributed spiral surface, the central axis of the spiral surface of the lower anti-loose washer (4) is coaxial with the central axis of the lower anti-loose washer (4), the spiral direction of the spiral surface of the lower anti-loose washer (4) is opposite to the spiral direction of the bolt body (1) with the groove, the inner ring surface of the lower anti-loose washer (4) is provided with a spiral stopping, the central axis of the spiral stopping of the inner ring surface of the lower anti-loose washer (4) is coaxial with the central axis of the lower anti-loose washer (4), and the spiral angle alpha 2 of the spiral surface of the lower anti-loose washer (4) is equal to the spiral angle alpha 1 of the spiral surface of the upper anti-loose washer (3).
The spiral stopping section of the upper anti-loose washer (3) is the same as the section of the spiral groove of the upper anti-loose washer assembly spiral groove of the bolt body with the groove (1), the spiral angle beta 11 of the spiral stopping of the upper anti-loose washer (3) is equal to the spiral angle beta 1 of the spiral groove of the upper anti-loose washer assembly spiral groove of the bolt body with the groove (1), the spiral stopping direction of the upper anti-loose washer (3) is the same as the spiral angle beta 1 of the spiral groove of the upper anti-loose washer assembly spiral groove of the bolt body with the groove, and the spiral stopping of the upper anti-loose washer (3) is matched with the spiral groove of the upper anti-loose washer assembly spiral groove of the bolt body with the groove (1).
The spiral stopping section of the lower anti-loosening gasket (4) is the same as the section of the spiral groove of the lower anti-loosening gasket assembly spiral groove of the bolt body with the groove (1), the spiral angle beta 21 of the spiral stopping of the lower anti-loosening gasket (4) is equal to the spiral angle beta 2 of the spiral groove of the lower anti-loosening gasket assembly spiral groove of the bolt body with the groove (1), the spiral directions of the spiral stopping section of the lower anti-loosening gasket (4) and the spiral groove of the lower anti-loosening gasket assembly spiral groove of the bolt body with the groove (1) are the same, and the spiral stopping section of the lower anti-loosening gasket (4) is matched with the spiral groove of the lower anti-loosening gasket assembly spiral groove of the bolt body with the groove.
One end of the upper check washer (3) with the spiral surface is assembled opposite to one end of the lower check washer (4) with the spiral surface, and the assembly combination of the upper check washer (3) and the lower check washer (4) is arranged between the nut (2) and a fastened piece.
In use, the slotted bolt body (1) passes through a fastened piece II (6) and a fastened piece I (5), then the spiral stop of the lower anti-loose washer (4) is matched with the lower anti-loose washer assembling spiral groove of the slotted bolt body (1), one end of the non-spiral surface of the lower anti-loose washer (4) is connected with the fastened piece, the spiral stop of the upper anti-loose washer (3) is matched with the upper anti-loose washer assembling spiral groove of the slotted bolt body (1), one end of the upper anti-loose washer (3) with the spiral surface is oppositely assembled with one end of the lower anti-loose washer (4) with the spiral surface, finally the nut (2) is screwed to required working torque, the whole fastening process is finished, and the assembling sequence of all parts is shown in figure 1.
When the fastened piece needs to be adjusted, the fastening program is executed reversely, and after the adjustment is completed, the program is executed again to complete the re-fastening. The double-pad anti-loose bolt is convenient to install, adjust and disassemble, and the double-pad anti-loose bolt is not greatly different from a common bolt in installation, adjustment and disassembly and can be repeatedly used.
Double-pad check bolt through the embedding grooved bolt body (1) helicla flute last lock washer (3) lower lock washer (4) with nut (2) constitute the locking structure to reach locking purpose, this kind of structure is insensitive to influence bolt looseness factors such as lateral vibration power, variable load, temperature variation, double-pad check bolt simple structure, locking effectual, non-maintaining, overcome not enough among the prior art, solved the problem that current check bolt exists.
The present invention is described in the following examples, which are only the basic embodiments of the present invention, and modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (4)
1. The utility model provides a double-pad check bolt which characterized in that: the double-pad anti-loose bolt consists of a bolt body (1) with a groove, a nut (2), an upper anti-loose washer (3) and a lower anti-loose washer (4); the bolt body (1) with the groove is provided with an upper anti-loose washer assembly spiral groove and a lower anti-loose washer assembly spiral groove, the screwing direction of the upper anti-loose washer assembly spiral groove is opposite to the screwing direction of the thread of the bolt body with the groove (1), the central shaft of the upper anti-loose washer assembly spiral groove of the bolt body with the groove (1) is coaxial with the central shaft of the thread of the bolt body with the groove (1), the central shaft of the lower anti-loose washer assembly spiral groove of the bolt body with the groove (1) is coaxial with the central shaft of the thread of the bolt body with the groove (1), the section of the spiral stopping of the upper anti-loose washer (3) is the same as that of the upper anti-loose washer assembly spiral groove of the bolt body with the groove (1), the section of the spiral stopping of the upper anti-loose washer (3) is beta 11 equal to the section of the spiral stopping of the bolt body with the groove (1), and the screwing directions of the upper anti-loose washer assembly spiral stopping spiral groove and the spiral stopping of the upper anti-loose washer (1) are the spiral stopping spiral groove and the spiral stopping groove of the upper anti-preventing bolt body, the spiral stopping of the upper anti-loose washer (3) is matched with the assembling spiral groove of the upper anti-loose washer of the bolt body (1) with the groove; the section of the spiral stopping of the lower anti-loosening gasket (4) is the same as that of the lower anti-loosening gasket assembling spiral groove of the bolt body (1), the spiral angle beta 21 of the spiral stopping of the lower anti-loosening gasket (4) is equal to the spiral angle beta 2 of the lower anti-loosening gasket assembling spiral groove of the bolt body (1), the spiral directions of the spiral stopping of the lower anti-loosening gasket (4) and the spiral groove of the lower anti-loosening gasket assembling spiral groove of the bolt body (1) are the same, and the spiral stopping of the lower anti-loosening gasket (4) is matched with the lower anti-loosening gasket assembling spiral groove of the bolt body (1); one end of the upper check washer (3) with the spiral surface is assembled opposite to one end of the lower check washer (4) with the spiral surface, and the assembly combination of the upper check washer (3) and the lower check washer (4) is arranged between the nut (2) and a fastened piece.
2. The double-washer lockbolt of claim 1, wherein: the helix angle beta 1 of the upper anti-loose washer assembly spiral groove is larger than the helix angle alpha 1 of the spiral surface of the upper anti-loose washer (3), the residual angle of the helix angle beta 1 of the upper anti-loose washer assembly spiral groove is larger than the thread helix angle lambda, the helix angle beta 2 of the lower anti-loose washer assembly spiral groove is larger than the helix angle beta 1 of the upper anti-loose washer assembly spiral groove, and the supplementary angle of the helix angle beta 2 of the lower anti-loose washer assembly spiral groove is larger than the thread helix angle 2 lambda of the grooved bolt body (1).
3. The double-washer lockbolt of claim 1, wherein: one end of the upper anti-loose washer (3) is provided with a radially and uniformly distributed spiral surface, the central axis of the spiral surface of the upper anti-loose washer (3) is coaxial with the central axis of the upper anti-loose washer (3), the spiral direction of the spiral surface of the upper anti-loose washer (3) is opposite to the spiral direction of the bolt body (1) with the bolt with the groove, the inner ring surface of the upper anti-loose washer (3) is provided with a spiral stopping part, the central axis of the spiral stopping part of the inner ring surface of the upper anti-loose washer (3) is coaxial with the central axis of the upper anti-loose washer (3), the spiral direction of the radially and uniformly distributed spiral surface of the upper anti-loose washer (3) is the same as the spiral direction of the spiral stopping part of the inner ring surface of the upper anti-loose washer (3), and the spiral angle alpha 1 of the spiral surface of the upper anti-loose washer (3) is greater than the spiral angle lambda of the spiral angle of the spiral thread of the bolt body with the bolt with the groove.
4. The double-washer lockbolt of claim 1, wherein: one end of the lower anti-loose washer (4) is provided with a radially and uniformly distributed spiral surface, the central axis of the spiral surface of the lower anti-loose washer (4) is coaxial with the central axis of the lower anti-loose washer (4), the spiral direction of the spiral surface of the lower anti-loose washer (4) is opposite to the spiral direction of the bolt body (1) with the groove, the inner ring surface of the lower anti-loose washer (4) is provided with a spiral stopping, the central axis of the spiral stopping of the inner ring surface of the lower anti-loose washer (4) is coaxial with the central axis of the lower anti-loose washer (4), and the spiral angle alpha 2 of the spiral surface of the lower anti-loose washer (4) is equal to the spiral angle alpha 1 of the spiral surface of the upper anti-loose washer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120866098.4U CN216589502U (en) | 2021-04-22 | 2021-04-22 | Double-pad check bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120866098.4U CN216589502U (en) | 2021-04-22 | 2021-04-22 | Double-pad check bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216589502U true CN216589502U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120866098.4U Active CN216589502U (en) | 2021-04-22 | 2021-04-22 | Double-pad check bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216589502U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217517A (en) * | 2021-04-22 | 2021-08-06 | 吕贵刚 | Double-pad anti-loose bolt |
-
2021
- 2021-04-22 CN CN202120866098.4U patent/CN216589502U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217517A (en) * | 2021-04-22 | 2021-08-06 | 吕贵刚 | Double-pad anti-loose bolt |
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