CN217814456U - Self-tightening anti-drop nut group - Google Patents
Self-tightening anti-drop nut group Download PDFInfo
- Publication number
- CN217814456U CN217814456U CN202123044831.3U CN202123044831U CN217814456U CN 217814456 U CN217814456 U CN 217814456U CN 202123044831 U CN202123044831 U CN 202123044831U CN 217814456 U CN217814456 U CN 217814456U
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- nut
- fastening nut
- fastening
- thread
- lower edge
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Abstract
The utility model discloses a from tight anticreep nut group, including fastening nut (1) and lock nut (2), fastening nut (1) external screw thread (4) are reverse screw thread, close with lock nut (2) second internal thread (5) that are reverse screw thread soon, rotatory for screwing left, fastening nut (1) external screw thread (4) only exist in fastening nut (1) surface lower half, and do not run through whole surfaces of fastening nut (1), fastening nut (1) external screw thread (4) are shorter than lock nut (2) second internal thread (5), close the back soon, fastening nut (1) lower edge and lock nut (2) lower limb vacuole formation (6), vibrations pass through lock nut (2) for fastening nut (1), it is tighter to make fastening nut (1) first internal thread (3) close with the bolt screw thread soon.
Description
Technical Field
The utility model relates to a fastener technical field specifically is a self-tightening anticreep nut group.
Background
The screw threads between the nut and the bolt may loosen due to vibration.
Therefore, the utility model provides a from tight anticreep nut group to solve the problem that proposes in the above-mentioned background art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a from tight anticreep nut group to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above purpose, the utility model provides a following technical scheme: the self-tightening anti-drop nut group is characterized by comprising a fastening nut (1) and a locking nut (2).
The fastening nut (1) is provided with a common first internal thread (3) which is screwed with the bolt (7) in a way of screwing when rotating rightwards, the external thread (4) of the fastening nut (1) is a reverse thread and is screwed with a second internal thread (5) of the locking nut (2) which is also a reverse thread in a way of screwing when rotating leftwards.
The external thread (4) of the fastening nut (1) only exists in the lower half part of the outer surface of the fastening nut (1) and does not penetrate through the whole outer surface of the fastening nut (1).
The external thread (4) of the fastening nut (1) is shorter than the second internal thread (5) of the locking nut (2), and after the two are screwed together, the lower edge of the fastening nut (1) has a certain distance with the lower edge of the locking nut (2) to form a cavity (6).
The utility model provides a during the use, external screw thread (4) of fastening nut (1) are first screwed with lock nut (2) second internal thread (5), then fastening nut (1) first internal thread (3) and the screw thread of bolt (7) are screwed.
Because the lower limb of fastening nut (1) has a section distance with the lower limb of lock nut (2), form a cavity (6), so by fixed object surface not with fastening nut (1) lower edge direct contact, the power that vibrations produced only acts on lock nut (2) lower surface, receive vibrations to influence, if lock nut (2) is rotatory left, make external screw thread (4) and lock nut (2) second internal thread (5) of fastening nut (1) close soon tighter, drive fastening nut (1) and rotate right, thereby make first internal thread (3) and the bolt screw thread of fastening nut (1) close tighter soon, fastening nut can not loosen and take off.
Because the lower limb of fastening nut (1) has a distance with the lower limb of lock nut (2), forms a cavity (6), so by fixed object surface not with fastening nut (1) lower edge direct contact, the power that vibrations produced only acts on lock nut (2) lower surface, receives vibrations to influence, if lock nut (2) rotate right, the lower limb of lock nut (2) will be tighter extrusion by the surface of the fixed object body, and lock nut also can not loosen.
Drawings
Fig. 1 is a schematic structural view of a fastening nut.
In fig. 1: 1. fastening a nut; 3. a fastening nut first internal thread; 4. and fastening the external thread of the nut.
Fig. 2 is a schematic structural view of the lock nut.
In fig. 2: 2. locking the nut; 5. and locking the second internal thread of the nut.
Fig. 3 is a schematic view of the fastening nut and the lock nut being screwed together.
In FIG. 3: 1. fastening nut 2, locking nut; 6. a cavity is formed between the lower edge of the fastening nut and the lower edge of the locking nut.
Fig. 4 is a schematic view of the self-tightening anti-slip nut set and the bolt being screwed together.
In fig. 4: 1. fastening a nut; 2. locking the nut; 6. a cavity is formed between the lower edge of the fastening nut and the lower edge of the locking nut; 7. and (4) bolts.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention is a self-tightening anti-separation nut set, including: a fastening nut (1) and a locking nut (2).
The fastening nut (1) is provided with a common first internal thread (3) which is screwed with the bolt (7), the right rotation is screwing, the external thread (4) of the fastening nut (1) is a reverse thread, the fastening nut is screwed with a second internal thread (5) of the locking nut (2) which is also a reverse thread, and the left rotation is screwing.
The external thread (4) of the fastening nut (1) only exists in the lower half part of the outer surface of the fastening nut (1) and does not penetrate through the whole outer surface of the fastening nut (1).
The external thread (4) of the fastening nut (1) is shorter than the second internal thread (5) of the locking nut (2), and after the external thread and the second internal thread are screwed together, the lower edge of the fastening nut (1) has a distance with the lower edge of the locking nut (2) to form a cavity (6).
The utility model provides a during the use, external screw thread (4) of fastening nut (1) are first screwed with lock nut (2) second internal thread (5), then fastening nut (1) first internal thread (3) and the screw thread of bolt (7) are screwed.
Because the lower limb of fastening nut (1) has a section distance with the lower limb of lock nut (2), form a cavity (6), so by fixed object surface not with fastening nut (1) lower edge direct contact, the power that vibrations produced only acts on lock nut (2) lower surface, influenced by vibrations, if lock nut (2) are rotatory left, make external screw thread (4) and lock nut (2) second internal thread (5) of fastening nut (1) close soon tighter, drive fastening nut (1) and rotate right, thereby make internal thread (3) and the bolt screw thread of fastening nut (1) close tighter soon, fastening nut can not loosen and take off.
Because the lower limb of fastening nut (1) has a distance with the lower limb of lock nut (2), forms a cavity (6), so by fixed object surface not with fastening nut (1) lower edge direct contact, the power that vibrations produced only acts on lock nut (2) lower surface, receives vibrations to influence, if lock nut (2) rotate right, the lower limb of lock nut (2) will be tighter extrusion by the surface of the fixed object body, and lock nut also can not loosen.
Claims (6)
1. The utility model provides a from tight anticreep nut group, its characterized in that, includes fastening nut (1) and lock nut (2), and fastening nut (1) has ordinary first internal thread (3), closes with bolt (7) screw thread soon, and the right side is rotatory for screwing, and fastening nut (1) external screw thread (4) are reverse screw thread, closes with lock nut (2) second internal thread (5) that are reverse screw thread soon, and the rotation is screwed for screwing left.
2. The self-tightening anti-drop nut set according to claim 1, wherein the external thread (4) of the fastening nut (1) is only arranged on the lower half part of the outer surface of the fastening nut (1) and does not penetrate through the whole outer surface of the fastening nut (1).
3. A self-tightening anti-drop nut assembly according to claim 1, wherein the external thread (4) of the fastening nut (1) is shorter than the second internal thread (5) of the locking nut (2), and when the two are screwed together, the lower edge of the fastening nut (1) is spaced from the lower edge of the locking nut (2) to form a cavity (6).
4. The self-tightening anti-drop nut group according to claim 1, when in use, the external thread (4) of the fastening nut (1) is screwed with the second internal thread (5) of the locking nut (2), and then the first internal thread (3) of the fastening nut (1) is screwed with the thread of the bolt (7).
5. The self-tightening anti-drop nut set according to claim 1, wherein a distance is reserved between the lower edge of the fastening nut (1) and the lower edge of the locking nut (2) to form a cavity (6), so that the surface of a fixed object is not in direct contact with the lower edge of the fastening nut (1), the force generated by vibration only acts on the lower surface of the locking nut (2) and is influenced by vibration, if the locking nut (2) rotates leftwards, the external thread (4) of the fastening nut (1) and the second internal thread (5) of the locking nut (2) are screwed tighter, the fastening nut (1) is driven to rotate rightwards, and therefore the first internal thread (3) of the fastening nut (1) and the bolt thread are screwed tighter, and the fastening nut cannot be loosened.
6. The self-tightening anti-drop nut set according to claim 1, wherein the lower edge of the fastening nut (1) is spaced from the lower edge of the locking nut (2) to form a cavity (6), so that the surface of the object to be fixed is not in direct contact with the lower edge of the fastening nut (1), the force generated by vibration only acts on the lower surface of the locking nut (2) and is affected by vibration, and if the locking nut (2) rotates to the right, the lower edge of the locking nut (2) can more tightly press the surface of the object to be fixed, and the fastening nut cannot be loosened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123044831.3U CN217814456U (en) | 2021-12-07 | 2021-12-07 | Self-tightening anti-drop nut group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123044831.3U CN217814456U (en) | 2021-12-07 | 2021-12-07 | Self-tightening anti-drop nut group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217814456U true CN217814456U (en) | 2022-11-15 |
Family
ID=83959087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123044831.3U Active CN217814456U (en) | 2021-12-07 | 2021-12-07 | Self-tightening anti-drop nut group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217814456U (en) |
-
2021
- 2021-12-07 CN CN202123044831.3U patent/CN217814456U/en active Active
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