CN213511605U - Elastic anti-loosening screw - Google Patents
Elastic anti-loosening screw Download PDFInfo
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- CN213511605U CN213511605U CN202022130098.6U CN202022130098U CN213511605U CN 213511605 U CN213511605 U CN 213511605U CN 202022130098 U CN202022130098 U CN 202022130098U CN 213511605 U CN213511605 U CN 213511605U
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- screw
- spring
- double
- loosening
- elasticity
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Abstract
The utility model provides an elastic check screw, includes screw head, double-screw bolt casing, spring, activity screw and elastic contact pin, the double-screw bolt casing sets up the lower surface of screw head, spring and activity screw set up in the double-screw bolt casing, the double-screw bolt casing is close to screw head one end and is equipped with first pad post, first pad post lower extreme is equipped with the spring, the spring lower extreme is equipped with the second pad post, second pad post lower extreme is equipped with movable screw, activity screw bottom is equipped with elastic contact pin. Elastic anti-loosening screw, through the method of precession screw-out activity screw, the adjustment spring dynamics is simple and convenient practical, can increase the joint strength of elasticity contact pin and material through the barb, the internal thread of screw head cooperatees with the nut and is practical, further improves the locking effect of screw.
Description
Technical Field
The utility model belongs to the technical field of machinery basic unit and manufacturing, specifically, relate to an elastic anti-loosening screw.
Background
The screw is a tool for fastening the parts of the object step by utilizing the physics and mathematical principles of the inclined circular rotation and friction of the object. Screws are a common term for fasteners, a common spoken word. The screw is widely applied to various industries as a fastener in the current production, but in the using process, the falling of the screw and the nut of the nut is often caused by the vibration of equipment or the infiltration of external oil stains, so that mechanical failure and even serious safety accidents are caused, and people think of adopting various methods for preventing the screw from loosening. In the prior art, in order to avoid loosening of the screw after locking, the anti-loosening screw is invented.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a have elastic locking screw, practical convenient, through the method of precession screw-out activity screw, the adjustment spring dynamics is simple and convenient practical, can increase the joint strength of elasticity contact pin and material through the barb, and the internal thread of screw head cooperatees with the nut and is practical, further improves the locking effect of screw.
The technical scheme is as follows: the utility model provides a have elastic locking screw, including screw head, double-screw bolt casing, spring, activity screw and elasticity contact pin, the double-screw bolt casing sets up the lower surface of screw head, spring and activity screw setting are in the double-screw bolt casing, the double-screw bolt casing is close to screw head one end and is equipped with first pad post, first pad post lower extreme is equipped with the spring, the spring lower extreme is equipped with the second pad post, second pad post lower extreme is equipped with the activity screw, activity screw bottom is equipped with the elasticity contact pin.
Furthermore, foretell have elastic anti-loosening screw, the screw head is the type of falling U structure.
Furthermore, the screw head of the elastic anti-loosening screw is internally provided with an internal thread.
Furthermore, in the elastic anti-loosening screw, the outer wall of the stud shell is provided with an external thread.
Furthermore, in the elastic anti-loosening screw, the tail end of the stud shell is in threaded connection with the movable screw.
Furthermore, according to the elastic anti-loosening screw, the nut is sleeved on the outer wall of the stud shell.
Further, foretell has elastic anti-loosening screw, the nut outer wall cover is established in the internal thread of screw head, the inner wall cover of nut is established on the external screw thread of double-screw bolt casing.
Furthermore, foretell has elastic anti-loosening screw, the front end that the movable screw was kept away from to the elastic contact pin is the pinpoint form, the front end outer wall of elastic contact pin is provided with the barb. Can increase the joint strength of elasticity contact pin and material through the barb, improve the locking effect of screw.
Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has: elastic anti-loosening screw have, simple structure, reasonable in design, through the method of precession screw-out activity screw, the adjustment spring dynamics is simple and convenient practical, can increase the joint strength of elasticity contact pin and material through the barb, the internal thread of screw head cooperatees with the nut and is practical, further improves the locking effect of screw, has very high spreading value.
Drawings
Fig. 1 is a first schematic structural view of the elastic anti-loosening screw of the present invention;
fig. 2 is a schematic structural view of the elastic anti-loosening screw of the present invention;
fig. 3 is a schematic view of the elastic pin of the elastic anti-loosening screw of the present invention.
In the figure: the bolt comprises a screw head 1, an internal thread 10, a bolt shell 2, an external thread 20, a first pad column 3, a spring 4, a second pad column 5, a movable screw 6, an elastic contact pin 7, a barb 8 and a nut 9.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Example 1
As shown in fig. 1, elastic check screw has, including screw head 1, double-screw bolt casing 2, spring 4, activity screw 6 and elastic contact pin 7, double-screw bolt casing 2 sets up the lower surface of screw head 1, spring 4 and activity screw 6 set up in double-screw bolt casing 2, double-screw bolt casing 2 is close to 1 one end of screw head and is equipped with first pad post 3, 3 lower extremes of first pad post are equipped with spring 4, 4 lower extremes of spring are equipped with second pad post 5, 5 lower extremes of second pad post are equipped with activity screw 6, 6 bottoms of activity screw are equipped with elastic contact pin 7.
The screw head 1 is of an inverted U-shaped structure. The screw head 1 is internally provided with an internal thread 10. The outer wall of the stud shell 2 is provided with external threads 20. The tail end of the stud shell 2 is in threaded connection with the movable screw 6. The front end of the elastic contact pin 7 far away from the movable screw 6 is in a needle point shape, as shown in fig. 3, a barb 8 is arranged on the outer wall of the front end of the elastic contact pin 7.
Example 2
As shown in fig. 2, elastic check screw has, including screw head 1, double-screw bolt casing 2, spring 4, activity screw 6 and elastic contact pin 7, double-screw bolt casing 2 sets up the lower surface of screw head 1, spring 4 and activity screw 6 set up in double-screw bolt casing 2, double-screw bolt casing 2 is close to 1 one end of screw head and is equipped with first pad post 3, 3 lower extremes of first pad post are equipped with spring 4, 4 lower extremes of spring are equipped with second pad post 5, 5 lower extremes of second pad post are equipped with activity screw 6, 6 bottoms of activity screw are equipped with elastic contact pin 7.
The screw head 1 is of an inverted U-shaped structure. The screw head 1 is internally provided with an internal thread 10. The outer wall of the stud shell 2 is provided with external threads 20. The tail end of the stud shell 2 is in threaded connection with the movable screw 6. The front end of the elastic contact pin 7 far away from the movable screw 6 is in a needle point shape, as shown in fig. 3, a barb 8 is arranged on the outer wall of the front end of the elastic contact pin 7.
The tail end of the stud shell 2 is provided with internal threads, a movable screw 6 is screwed in, the built-in spring 3 is extruded, and the elasticity is increased at the moment; the movable screw 6 is screwed back, and the effect is opposite. The barb 8 can increase the connection strength between the elastic contact pin 7 and the material, thereby improving the anti-loosening effect of the screw.
And a nut 9 is sleeved on the outer wall of the stud shell 2. The outer wall of the nut 9 is sleeved in the internal thread 10 of the screw head 1, and the inner wall of the nut 9 is sleeved on the external thread 20 of the stud shell 2. The internal thread of the screw head 1 is matched with the nut 9 for practicality, and the anti-loosening effect of the screw is further improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (8)
1. An anti-loosening screw with elasticity is characterized in that: including screw head (1), double-screw bolt casing (2), spring (4), activity screw (6) and elastic insertion needle (7), double-screw bolt casing (2) set up the lower surface of screw head (1), spring (4) and activity screw (6) set up in double-screw bolt casing (2), double-screw bolt casing (2) are close to screw head (1) one end and are equipped with first pad post (3), first pad post (3) lower extreme is equipped with spring (4), spring (4) lower extreme is equipped with second pad post (5), second pad post (5) lower extreme is equipped with movable screw (6), activity screw (6) bottom is equipped with elastic insertion needle (7).
2. The anti-loosening screw having elasticity as claimed in claim 1, wherein: the screw head (1) is of an inverted U-shaped structure.
3. The anti-loosening screw having elasticity as claimed in claim 2, wherein: an internal thread (10) is arranged in the screw head (1).
4. The anti-loosening screw having elasticity as claimed in claim 1, wherein: and the outer wall of the stud shell (2) is provided with an external thread (20).
5. The anti-loosening screw having elasticity as claimed in claim 4, wherein: the tail end of the stud shell (2) is in threaded connection with the movable screw (6).
6. The anti-loosening screw having elasticity as claimed in claim 1, wherein: and a nut (9) is sleeved on the outer wall of the stud shell (2).
7. The anti-loosening screw having elasticity as claimed in claim 6, wherein: the outer wall of the nut (9) is sleeved in the inner thread (10) of the screw head (1), and the inner wall of the nut (9) is sleeved on the outer thread (20) of the stud shell (2).
8. The anti-loosening screw having elasticity as claimed in claim 1, wherein: the front end of the elastic contact pin (7) far away from the movable screw (6) is in a needle point shape, and the outer wall of the front end of the elastic contact pin (7) is provided with a barb (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022130098.6U CN213511605U (en) | 2020-09-25 | 2020-09-25 | Elastic anti-loosening screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022130098.6U CN213511605U (en) | 2020-09-25 | 2020-09-25 | Elastic anti-loosening screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213511605U true CN213511605U (en) | 2021-06-22 |
Family
ID=76450086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022130098.6U Active CN213511605U (en) | 2020-09-25 | 2020-09-25 | Elastic anti-loosening screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213511605U (en) |
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2020
- 2020-09-25 CN CN202022130098.6U patent/CN213511605U/en active Active
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