CN216642753U - Double-nut interlocking anti-loosening screw - Google Patents
Double-nut interlocking anti-loosening screw Download PDFInfo
- Publication number
- CN216642753U CN216642753U CN202123099113.6U CN202123099113U CN216642753U CN 216642753 U CN216642753 U CN 216642753U CN 202123099113 U CN202123099113 U CN 202123099113U CN 216642753 U CN216642753 U CN 216642753U
- Authority
- CN
- China
- Prior art keywords
- nut
- screw
- thread
- wall
- female
- 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.)
- Active
Links
Images
Landscapes
- Transmission Devices (AREA)
Abstract
The utility model relates to a double-nut interlocking anti-loose screw which can effectively solve the problem that a screw is easy to loose at a position with large vibration force The equipment or machine with larger vibration is an innovation on the screw.
Description
Technical Field
The utility model relates to the field of machinery, in particular to a double-nut interlocking anti-loose screw.
Background
When a vehicle is driven normally, the vehicle suddenly stalls sometimes, the vehicle is started again without response, and the situation that the contact of a binding post is poor due to the fact that a power supply screw is loosened is often found through inspection, so that the track traffic is associated, particularly, the vibration of a high-speed rail is larger, and once the screw at a key part is loosened, a very large safety problem may be caused.
Disclosure of Invention
In view of the above situation, the present invention provides a double-nut interlocking anti-loosening screw, which can effectively solve the problem that a screw is easy to loosen at a position with large vibration force.
The technical scheme includes that the double-nut interlocking structure comprises a screw and a nut, wherein a male screw is arranged on the screw, a first thread is arranged on the outer wall of a convex nut, a first female screw is arranged on the inner wall, a second female screw is arranged on the inner wall of the upper portion of the concave nut, a second thread is arranged on the inner wall of the lower portion of the concave nut, the first female screw and the male screw of the convex nut are screwed together, the second thread of the concave nut and the first thread of the convex nut are screwed together, the second female screw and the male screw of the concave nut are screwed together, and the thread space of the first thread and the second thread is larger than the thread space of the male screw, the first female screw and the second female screw, so that the double-nut interlocking structure is formed.
The double-nut interlocking structure has the advantages of simple structure, reasonable design, low cost and good use effect, can effectively solve the problem of screw loosening, is suitable for rail vehicles and machinery manufacturing industry, and equipment or machines with larger vibration, and is an innovation on screws.
Drawings
FIG. 1 is a schematic cross-sectional view of the structure of the present invention.
Fig. 2 is a schematic structural section view of the female nut of the present invention.
Fig. 3 is a schematic structural section view of the male nut of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in figures 1-3, the double-nut interlocking structure comprises a screw rod and a nut, wherein a male screw 4 is arranged on the screw rod 1, a first thread 5 is arranged on the outer wall of a convex nut 2, a first female screw 6 is arranged on the inner wall, a second female screw 7 is arranged on the inner wall of the upper portion of the concave nut 3, a second thread 8 is arranged on the inner wall of the lower portion of the concave nut 3, the first female screw 6 of the convex nut 2 and the male screw 4 are screwed together, the second thread 8 of the concave nut 3 and the first thread 5 of the convex nut 2 are screwed together, the second female screw 7 of the concave nut 3 and the male screw 4 are screwed together, and the thread space between the first thread 5 and the second thread 8 is larger than the thread space between the male screw 4, the first female screw 6 and the second female screw 7, so that the double-nut interlocking structure is formed.
In order to ensure the using effect, the diameter of the inner wall of the upper part of the concave nut 3 is smaller than that of the inner wall of the lower part.
The diameter of the inner wall of the convex nut 2 is the same as that of the inner wall of the upper part of the concave nut 3 and is matched with that of the screw.
The diameter of the inner wall of the lower part of the concave nut 3 is matched with the diameter of the outer wall of the convex nut 2 provided with the first thread 5.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make modifications or equivalent variations to the above-mentioned embodiments without departing from the scope of the present invention.
The use condition of the utility model is that the nut comprises a screw rod and a specially designed double nut, the rings are buckled with each other to achieve the purpose of mutual locking, one nut is convex, the other nut is concave, a first thread 5 on the outer wall of the convex nut and a second thread 8 on the lower inner wall of the concave nut have threads with the same interval, the thread intervals are larger than the thread intervals of a first female thread 6, a second female thread 7 and a male thread 4, because the thread intervals of the first thread 5 and the second thread 8 are larger than the thread intervals of the first female thread 6, the second female thread 7 and the male thread 4, when the nut is tightened, the thread interval is larger than the thread interval, so that the two nuts can be locked with each other, after the nut and the screw rod are equivalent to a whole, the whole screw can not be loosened, when the nut is used, the nut is firstly upwards protruded, and then the nut is locked with the concave shape.
The double-nut interlocking structure has the advantages of simple structure, reasonable design and good use effect, can effectively solve the problem of screw loosening, is suitable for rail vehicles and machinery manufacturing industry, and equipment or machines with larger vibration, is an innovation on screws, and has good economic and social benefits.
Claims (4)
1. A double-nut interlocking anti-loosening screw comprises a screw rod and a nut and is characterized in that a male screw (4) is arranged on the screw rod (1), a first thread (5) is arranged on the outer wall of a convex nut (2), a first female screw (6) is arranged on the inner wall of the male screw, a second female screw (7) is arranged on the inner wall of the upper portion of a concave nut (3), a second thread (8) is arranged on the inner wall of the lower portion of the concave nut (3), the first female screw (6) of the convex nut (2) and the male screw (4) are screwed together, the second thread (8) of the concave nut (3) and the first thread (5) of the convex nut (2) are screwed together, the second female screw (7) of the concave nut (3) and the male screw (4) are screwed together, and the thread space between the first thread (5) and the second thread (8) is larger than that between the male screw (4), the thread space of the first female thread (6) and the second female thread (7) forms a double-female interlocking structure.
2. The double-female interlocking anti-loose screw according to claim 1, characterized in that the diameter of the inner wall of the upper part of the female nut (3) is smaller than that of the inner wall of the lower part.
3. The double-female interlocking anti-loose screw as claimed in claim 1, characterized in that the diameter of the inner wall of the male nut (2) is the same as that of the inner wall of the upper part of the female nut (3) and is matched with the diameter of the screw.
4. Double-nut interlocking anti-loose screw according to claim 1, characterized in that the diameter of the lower inner wall of the female nut (3) matches the diameter of the outer wall of the male nut (2) provided with the first thread (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123099113.6U CN216642753U (en) | 2021-12-10 | 2021-12-10 | Double-nut interlocking anti-loosening screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123099113.6U CN216642753U (en) | 2021-12-10 | 2021-12-10 | Double-nut interlocking anti-loosening screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216642753U true CN216642753U (en) | 2022-05-31 |
Family
ID=81739675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123099113.6U Active CN216642753U (en) | 2021-12-10 | 2021-12-10 | Double-nut interlocking anti-loosening screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216642753U (en) |
-
2021
- 2021-12-10 CN CN202123099113.6U patent/CN216642753U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104863952B (en) | A kind of self-locking fastening kit | |
| CN204629058U (en) | One is anti-unloads anti-loose anti-theft hexagon socket head cap screw device | |
| CN201568427U (en) | Anti-looseness sexangular flange bolt | |
| CN110608225A (en) | Can realize from anti vibration check bolt subassembly of locking-type | |
| CN216642753U (en) | Double-nut interlocking anti-loosening screw | |
| CN212536401U (en) | Check bolt assembly | |
| CN210290446U (en) | Combined novel anti-loosening nut | |
| KR20130140751A (en) | Self-locking nut | |
| CN202402444U (en) | Fastening lock bolt | |
| TWM549832U (en) | Lock nut | |
| CN205315449U (en) | Locking fastening nut | |
| CN211550227U (en) | Anti-loosening nut | |
| CN205298218U (en) | Pressure formula locknut device is spared to elasticity | |
| CN201554751U (en) | Tensile high-locking nut | |
| CN210318129U (en) | High-strength nylon locking nut | |
| CN112128209A (en) | Upper locking type elastic conical locknut | |
| CN204878248U (en) | Extension hexagonal coupling nut | |
| CN207246196U (en) | A kind of anti-loose anti-theft nut with crushing block external member | |
| CN113833735A (en) | Anti-loosening part matched with bolt and locking device | |
| CN112628268B (en) | Bolt and nut assembly capable of effectively preventing disassembly | |
| CN210769789U (en) | Anti-seismic anti-loose self-locking double-nut fastener | |
| CN219953923U (en) | Locking bolt nut subassembly that moves | |
| CN220646453U (en) | Anti-disassembling and anti-loosening integrated self-locking double nut | |
| CN105650083B (en) | A kind of swivel nut and the connection component using the swivel nut | |
| CN215409710U (en) | Anti-loosening integrated nut assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |