CN219119624U - Inclined plane auto-lock fastening nut and locking subassembly - Google Patents
Inclined plane auto-lock fastening nut and locking subassembly Download PDFInfo
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- CN219119624U CN219119624U CN202223354205.9U CN202223354205U CN219119624U CN 219119624 U CN219119624 U CN 219119624U CN 202223354205 U CN202223354205 U CN 202223354205U CN 219119624 U CN219119624 U CN 219119624U
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- 238000000034 method Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 9
- 230000004323 axial length Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000005489 elastic deformation Effects 0.000 description 10
- 230000009471 action Effects 0.000 description 6
- 239000011295 pitch Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of fasteners and discloses an inclined plane self-locking fastening nut and an anti-loosening assembly. This inclined plane auto-lock fastening nut and locking subassembly, first inclined plane through on the main nut is preceding waiting for the mounting point contact in rotatory screwing process, screw thread section screw thread interlock effect on main nut and the bolt simultaneously and drive the screw thread section on the bolt and take place elasticity axial deflection so that main nut and waiting for the mounting face contact, and then increase the main nut and wait the atress area and the frictional resistance between the mounting, thereby increase the firm intensity of auto-lock and the locking performance of this locking subassembly, simultaneously because screw thread section on the bolt takes place elasticity axial deflection, even make the trend that the bolt elasticity reset produce reaction force to main nut, further increase the firm intensity of auto-lock and the locking performance of this locking subassembly, reach simple and convenient high-efficient auto-lock and locking effect.
Description
Technical Field
The utility model relates to the technical field of fasteners, in particular to an inclined plane self-locking fastening nut and a locking assembly.
Background
The nut is a part which is matched with a bolt and plays a role in fastening, the working principle of the nut is that friction force is generated between screw surfaces between the bolt and the nut, the screw lead angle is adjusted to enable the screw lead angle to be smaller than or equal to the friction angle so as to achieve self-locking of screw connection, but when a fastener is subjected to dynamic load, the reliability of self-locking is greatly reduced, a general nut can be automatically loosened due to vibration and other reasons, dangerous accidents are easy to be caused, the anti-loosening effect is unsatisfactory, and therefore the inclined plane self-locking fastening nut and an anti-loosening assembly are provided to solve the problems.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides the inclined plane self-locking fastening nut and the locking assembly, which have the advantages of firm self-locking, good locking effect and the like, and solve the problems that when the traditional fastener is subjected to dynamic load, the reliability of self-locking is greatly reduced, the common nut is automatically loosened due to vibration and the like, dangerous accidents are easy to be caused, and the locking effect is unsatisfactory.
(II) technical scheme
In order to achieve the purposes of firm self-locking and good anti-loosening effect, the utility model provides the following technical scheme: the utility model provides an inclined plane auto-lock fastening nut and locking subassembly, including waiting the mounting, be provided with the perforation on waiting the mounting, still include the bolt, the bolt sets up in waiting the perforation of mounting, but the screw thread section elastic deformation of waiting mounting one end is kept away from to the bolt, but is provided with the main nut on the screw thread section of bolt, the radial terminal surface that the main nut is close to waiting one side of mounting is first inclined plane, contained angle between the perpendicular of first inclined plane and main nut axis is alpha, the main nut is used for cooperating the nut to wait that the mounting centre gripping is fixed on the bolt, the main nut screw up in-process makes the screw thread section take place elastic deformation and increase main nut with wait to support between the mounting simultaneously and hold the atress area.
Preferably, the included angle α has a value in the range of 1 ° to 10 °.
Preferably, the screw bolt further comprises an auxiliary nut, wherein the auxiliary nut is arranged on the threaded section of the screw bolt and is positioned on one side of the main nut away from the to-be-fixed piece, the radial end face of one side of the main nut, which is close to the auxiliary nut, is a second inclined surface, and the second inclined surface is parallel to the first inclined surface.
Preferably, the axial end face of the auxiliary nut is provided with at least three first threaded holes, the plurality of first threaded holes are distributed in a circumferential array around the central line of the auxiliary nut, first screws are arranged in the first threaded holes, and the axial length of the first screws is greater than that of the auxiliary nut.
Preferably, the axial end face of the auxiliary nut is provided with at least three through holes, the through holes are distributed in a circumferential array around the central line of the auxiliary nut, second screws are arranged in the through holes, the axial length of each second screw is greater than that of the auxiliary nut, and a second threaded hole corresponding to each second screw is formed in one side, close to the auxiliary nut, of the main nut.
(III) beneficial effects
Compared with the prior art, the utility model provides the inclined plane self-locking fastening nut and the anti-loosening assembly, which have the following beneficial effects:
1. according to the inclined plane self-locking fastening nut and the anti-loosening assembly, when the main nut is screwed down, the radial end face of the main nut, which is close to one side of a to-be-fixed piece, is the first inclined plane, so that the main nut shaft is in point contact with the to-be-fixed piece in the rotating screwing down process, meanwhile, the main nut and the threaded section on the bolt are in threaded engagement acting force and drive the threaded section on the bolt to elastically deflect axially, so that the main nut is in surface contact with the to-be-fixed piece, the stress area and friction resistance between the main nut and the to-be-fixed piece are increased, the self-locking firm strength and the anti-loosening performance of the anti-loosening assembly are increased, and meanwhile, the threaded section on the bolt elastically deflects axially elastically, so that the trend of elastic resetting of the bolt generates reaction force on the main nut, the self-locking firm strength and the anti-loosening performance of the anti-loosening assembly are further increased, and the simple, convenient and efficient self-locking and anti-loosening effects are achieved.
2. According to the inclined plane self-locking fastening nut and the anti-loosening component, the auxiliary nut arranged on one side of the main nut far away from the to-be-fixed piece is meshed with the bolt, so that the axial acting force of the main nut and the bolt is further increased, meanwhile, the radial end face of one side of the main nut close to the auxiliary nut is a second inclined plane, so that the auxiliary nut is in point contact with the main nut in advance in the screwing process, under the action of the thread section thread meshing action force on the auxiliary nut and the bolt and the action force of the main nut in supporting, the thread section on the bolt is driven to elastically deflect axially again, the auxiliary nut is in surface contact with the main nut, the stress area and friction resistance between the auxiliary nut and the main nut are further increased, the anti-loosening strength between the bolt and the auxiliary nut is improved, and finally, the first screw on the auxiliary nut is screwed, and the first threaded hole on the auxiliary nut is interacted, so that the first screw exerts reverse acting force on the auxiliary nut and the main nut, the meshing force between the auxiliary nut and the main nut is further increased, and the simple, convenient and efficient self-locking effect is achieved; similarly, by tightening the second screw on the auxiliary nut, the second screw interacts with the second threaded hole on the main nut, so that the second screw applies opposite pulling acting force to the auxiliary nut and the main nut, and further increases the meshing force between the auxiliary nut and the main nut and the bolt, thereby realizing simple, convenient and efficient self-locking and anti-loosening effects.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present utility model;
FIG. 2 is a schematic view of the main nut of the present utility model;
FIG. 3 is a schematic diagram of a second embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a third embodiment of the present utility model.
In the figure: 1 to-be-fixed piece, 2 bolts, 3 main nuts, 31 first inclined planes, 32 second inclined planes, 33 second threaded holes, 4 auxiliary nuts, 41 first threaded holes, 42 first screws, 43 through holes and 44 second screws.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Embodiment one:
referring to fig. 1-2, an inclined plane self-locking fastening nut and a locking assembly comprises a to-be-fixed piece 1, wherein a through hole is formed in the to-be-fixed piece 1, the locking assembly further comprises a bolt 2, the bolt 2 is movably installed in the through hole of the to-be-fixed piece 1, a threaded section of one end of the bolt 2, which is far away from the to-be-fixed piece 1, can be elastically deformed, a main nut 3 is connected to the threaded section of the bolt 2 in a threaded manner, a radial end face of one side, which is close to the to-be-fixed piece 1, of the main nut 3 is a first inclined plane 31, an included angle between the first inclined plane 31 and a vertical plane of an axis of the main nut 3 is alpha, the main nut 3 is used for clamping and fixing the to-be-fixed piece 1 in cooperation with a nut on the bolt 2, and meanwhile, the threaded section of the bolt 2 is elastically deformed and the supporting force area between the main nut 3 and the to-be-fixed piece 1 is increased in the screwing process of the main nut 3; when the self-locking bolt is used, because the included angle alpha exists between the first inclined surface 31 on one side of the main nut 3, which is close to the to-be-fixed piece 1, and the vertical surface of the axis of the main nut 3, when the main nut 3 is screwed down, one side edge of the first inclined surface 31 is in point contact with the to-be-fixed piece 1 first, when the main nut 3 is continuously screwed down, the point contact position between the main nut 3 and the to-be-fixed piece 1 generates a force perpendicular to the direction of the first inclined surface 31, the acting force between the main nut 3 and the to-be-fixed piece 1 is transmitted to the bolt 2 through the threaded connection of the bolt 2 and the main nut 3, the axis of the bolt 2 is inclined, the point contact gradually becomes the surface contact, the first inclined surface 31 is completely overlapped with the to-be-fixed piece 1, the stress area and the friction force between the main nut 3 and the to-be-fixed piece 1 are relatively increased, and simultaneously, the screw pitch on one side of the bolt 2 is stretched and the other side is reduced, the overall length is uniformly distributed among a plurality of screw pitches, the screw pitches are changed slightly, after the main nut 3 is loosened, the elastic deformation of the bolt 2 still can restore the auxiliary nut 4 and the main nut 3 to be used for the next time, the elastic deformation is still, the elastic deformation of the bolt 2 is changed, the elastic deformation is gradually, the elastic deformation force between the screw thread is increased, and the screw thread is further, and the elastic deformation force is increased, and the stress between the screw thread is increased, and the screw thread stress force between the screw thread is deformed.
Preferably, the numerical range of the included angle alpha is set to be 1-10 degrees, so that the situation that the service life of the anti-loose assembly is influenced due to the fact that the bolt 2 is damaged or cannot be elastically reset due to the fact that the deformation amplitude of the bolt 2 is driven to be too large in the screwing process of the main nut 3 is avoided.
Embodiment two:
as shown in fig. 3, the difference from the first embodiment is that the secondary nut 4 is screwed on the threaded section of the bolt 2 and located on the side of the primary nut 3 away from the to-be-fixed member 1, and the radial end surface of the side of the primary nut 3 close to the secondary nut 4 is a second inclined surface 32, and the second inclined surface 32 is parallel to the first inclined surface 31; when the screw bolt is used, the auxiliary nut 4 is firstly in point contact with the edge of one side of the main nut 3 through screwing the auxiliary nut 4, the axial acting force of the bolt 2 on the main nut 3 is increased, the auxiliary nut 4 is continuously screwed on the auxiliary nut 4, the auxiliary nut 4 and the main nut 3 are mutually propped against each other and generate non-axial acting force on the bolt 2, the bolt 2 is further enabled to generate secondary elastic deformation, meanwhile, the auxiliary nut 4 is gradually contacted with the main nut 3 in a point-to-point manner to be in surface contact, the contact friction force between the auxiliary nut 4 and the main nut 3 is increased, meanwhile, the screw pitch on the bolt 2 is correspondingly elastically deformed due to the secondary elastic deformation of the bolt 2, the screw thread biting force between the bolt 2 and the main nut 3 and the auxiliary nut 4 is further increased, and the effects of simplicity, convenience, high efficiency, self-locking and anti-loosening are achieved.
Preferably, at least three first threaded holes 41 are arranged on the axial end face of the auxiliary nut 4, the plurality of first threaded holes 41 are distributed in a circumferential array around the central line of the auxiliary nut 4, first screws 42 are arranged in the first threaded holes 41, and the axial length of the first screws 42 is greater than that of the auxiliary nut 4; through tightening first screw 42, first screw 42 interacts with first screw hole 41 on the vice nut 4, and then apply reverse effort to between vice nut 4 and the main nut 3, and then increase the snap-in force between vice nut 4 and the main nut 3 respectively and the bolt 2, simultaneously, be circumference array distribution around the central line of vice nut 4 through a plurality of first screw holes 41, and then make the reverse effort relative distribution between vice nut 4 and the main nut 3 even, avoid vice nut 4 and the uneven inequality of main nut 3 effort to lead to taking place inequality of bolt 2 to take place inequality deformation and cause bolt 2 to damage or unable elastic reset to influence this locking subassembly life's condition to take place, further improved the locking intensity of this locking subassembly, realize simple convenient high-efficient auto-lock and locking effect.
Embodiment III:
as shown in fig. 4, the difference from the second embodiment is that at least three through holes 43 are provided on the axial end face of the secondary nut 4, the plurality of through holes 43 are distributed in a circumferential array around the center line of the secondary nut 4, the second screw 44 is provided in the through hole 43, the axial length of the second screw 44 is greater than that of the secondary nut 4, and the second threaded hole 33 corresponding to the second screw 44 is provided on one side of the primary nut 3 close to the secondary nut 4; by tightening the second screw 44, the second screw 44 applies opposite pulling force to the auxiliary nut 4 and the main nut 3, so that the meshing force between the auxiliary nut 4 and the main nut 3 and the bolt 2 is increased, and the effects of simplicity, convenience, high efficiency, self-locking and anti-loosening are achieved.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides an inclined plane auto-lock fastening nut and locking subassembly, is provided with perforation, its characterized in that including waiting mounting (1) on waiting mounting (1): the fixing device further comprises a bolt (2), the bolt (2) is arranged in a through hole of the to-be-fixed piece (1), a threaded section of one end of the bolt (2) away from the to-be-fixed piece (1) can be elastically deformed, a main nut (3) is arranged on the threaded section of the bolt (2), the radial end face of one side of the main nut (3) close to the to-be-fixed piece (1) is a first inclined surface (31), an included angle between the first inclined surface (31) and a vertical surface of an axis of the main nut (3) is alpha, the main nut (3) is used for clamping and fixing the to-be-fixed piece (1) in cooperation with a nut on the bolt (2), simultaneously, the screw thread section of the bolt (2) is elastically deformed and the supporting stress area between the main nut (3) and the to-be-fixed piece (1) is increased in the screwing process of the main nut (3), the screw thread section of the bolt (2) is provided with the auxiliary nut (4), the auxiliary nut (4) is arranged on the screw thread section of the bolt (2) and is positioned on one side of the main nut (3) far away from the to-be-fixed piece (1), the radial end surface of one side of the main nut (3) close to the auxiliary nut (4) is a second inclined surface (32), the second inclined surface (32) is parallel to the first inclined surface (31), the axial end surface of the auxiliary nut (4) is provided with at least three first screw holes (41), the plurality of first screw holes (41) are distributed in a circumferential array around the central line of the auxiliary nut (4), a first screw (42) is arranged in the first threaded hole (41), and the axial length of the first screw (42) is larger than that of the auxiliary nut (4).
2. The inclined surface self-locking fastening nut and anti-loosening assembly according to claim 1, wherein: the included angle α has a value in the range of 1 ° to 10 °.
3. The inclined surface self-locking fastening nut and anti-loosening assembly according to claim 1, wherein: be provided with on the axial terminal surface of vice nut (4) and be not less than three through-hole (43), a plurality of through-holes (43) are circumference array distribution around the central line of vice nut (4), are provided with second screw (44) in through-hole (43), and the axial length of second screw (44) is greater than the axial length of vice nut (4), and second screw hole (33) that correspond with second screw (44) have been seted up to one side that main nut (3) is close to vice nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223354205.9U CN219119624U (en) | 2022-12-14 | 2022-12-14 | Inclined plane auto-lock fastening nut and locking subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223354205.9U CN219119624U (en) | 2022-12-14 | 2022-12-14 | Inclined plane auto-lock fastening nut and locking subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219119624U true CN219119624U (en) | 2023-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223354205.9U Active CN219119624U (en) | 2022-12-14 | 2022-12-14 | Inclined plane auto-lock fastening nut and locking subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219119624U (en) |
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2022
- 2022-12-14 CN CN202223354205.9U patent/CN219119624U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A inclined self-locking fastening nut and anti loosening component Granted publication date: 20230602 Pledgee: Zhejiang Suichang Rural Commercial Bank Co.,Ltd. Yunfeng Branch Pledgor: Zhejiang Zhengao Automobile Technology Co.,Ltd. Registration number: Y2024330000447 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |