CN216343333U - Anti-loosening screw - Google Patents
Anti-loosening screw Download PDFInfo
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- CN216343333U CN216343333U CN202220663106.XU CN202220663106U CN216343333U CN 216343333 U CN216343333 U CN 216343333U CN 202220663106 U CN202220663106 U CN 202220663106U CN 216343333 U CN216343333 U CN 216343333U
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- loosening
- screw
- inclined surface
- threaded rod
- ring
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Abstract
The utility model relates to the technical field of screws, and discloses a screw capable of preventing loosening, which solves the problem that the common screw is easy to loosen due to external force in the using process, so that the installation stability is poor; a spiral bulge is formed on the threaded rod, and anti-loosening grooves are uniformly formed on the spiral bulge; a front inclined surface and a rear inclined surface are formed in the anti-loosening groove, the angle between the front inclined surface and the horizontal plane is 90-180 degrees, and the angle between the rear inclined surface and the horizontal plane is 90-180 degrees; according to the anti-loosening screw, after the anti-loosening screw is installed, under the reaction of force, the rebounded back part of the extruded surface enters the anti-loosening groove, the front inclined surface and the vertical section of the spiral protrusion form an acute angle, forward screwing of the spiral protrusion can be guaranteed, resistance is large when the spiral protrusion rotates in the reverse direction, and therefore loosening of the screw can be avoided.
Description
Technical Field
The utility model belongs to the technical field of screws, and particularly relates to a screw capable of preventing loosening.
Background
The screw refers to a screw, and is a tool for fastening machine parts of an object step by utilizing the physics and mathematical principles of the inclined plane circular rotation and friction of the object, and the screw is a general term of a fastener and a daily oral language; the metric thread is MM (millimeter) as a unit, and the tooth sharp angle of the metric thread is 60 degrees; both American and English threads are in inches; the tooth tip angle of the american thread is also 60 degrees, while the tooth tip angle of the english thread is 55 degrees.
In the using process of a common screw, the screw is easy to loosen due to external force, so that the mounting stability is poor.
SUMMERY OF THE UTILITY MODEL
Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the anti-loosening screw, which effectively solves the problem that the general screw is easy to loosen due to external force in the using process, so that the installation stability is poor.
In order to achieve the purpose, the utility model provides the following technical scheme: the screw comprises a ring body, wherein the ring body is connected with a threaded rod, and the threaded rod is connected with a spine part; the threaded rod is provided with a spiral bulge, and the spiral bulge is uniformly provided with an anti-loosening groove.
Preferably, a front inclined surface and a rear inclined surface are formed in the anti-loosening groove, an angle between the front inclined surface and a horizontal plane is 90 degrees to 180 degrees, and an angle between the rear inclined surface and the horizontal plane is 90 degrees to 180 degrees.
Preferably, a tool groove is formed in the top end of the ring body, and the tool groove is of a regular polygon structure.
Preferably, the threaded rod is sleeved with a positioning ring, and the positioning ring is equidistantly connected with a prick.
Preferably, an annular groove is further formed in the ring body and corresponds to the positioning ring.
Preferably, the threaded rod is further sleeved with a friction ring, and the friction ring is located between the annular groove and the positioning ring.
Preferably, the ring body, the threaded rod, the spine portion and the positioning ring are made of stainless steel, and the friction ring is made of rubber.
Compared with the prior art, the utility model has the beneficial effects that:
1) in the working process, after the anti-loosening groove is arranged, under the reaction of force after the anti-loosening groove is installed, the rebounded rear part of the extruded surface enters the anti-loosening groove, the front inclined surface and the vertical section of the spiral protrusion form an acute angle, the forward screwing of the spiral protrusion can be ensured, and the resistance of the spiral protrusion in the reverse rotation is large, so that the screw can be prevented from loosening;
2) the annular groove extrudes the positioning ring, so that the conical prick pierces the mounting surface, certain elastic pressure can be generated by using the friction ring in a matching way, the positioning ring is extruded, the stability of the screw during installation is further enhanced, and the loosening phenomenon is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.
In the drawings:
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a second schematic structural diagram of the present invention;
FIG. 3 is a third schematic structural diagram of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;
in the figure: 1. a ring body; 101. a tool slot; 102. an annular groove; 2. a threaded rod; 201. a spiral protrusion; 202. an anti-loosening groove; 203. a front bevel; 204. a rear bevel; 3. a spike portion; 4. a positioning ring; 401. e, stabbing; 5. a friction ring.
Detailed Description
The technical solutions 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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the first embodiment, as shown in fig. 1-4, the utility model comprises a ring body 1, wherein the ring body 1 is connected with a threaded rod 2, and the threaded rod 2 is connected with a spike part 3; a spiral protrusion 201 is formed on the threaded rod 2, and anti-loosening grooves 202 are uniformly formed on the spiral protrusion 201; a front inclined surface 203 and a rear inclined surface 204 are formed in the anti-loosening groove 202, the angle between the front inclined surface 203 and the horizontal plane is 90-180 degrees, and the angle between the rear inclined surface 204 and the horizontal plane is 90-180 degrees; the top end of the ring body 1 is provided with a tool groove 101, and the tool groove 101 is in a regular polygon structure;
when the tool is used, a tool is inserted into the tool groove 101, then the ring body 1 can be driven to rotate, the ring body 1 drives the threaded rod 2 to rotate, the threaded rod 2 is extruded through the spine part 3, and then the threaded rod 2 is installed in a spiral mode; through the anti-loosening groove 202 that sets up, when screwing in, extrude through spiral protrusion 201, wherein preferred back inclined plane 204 can coincide with the vertical cross section of spiral protrusion 201, for 90 degrees, the processing of being convenient for, after the installation is accomplished like this, under the reaction of power, rebound back part by the extrusion face and enter into anti-loosening groove 202 inside, resistance when at this moment spiral protrusion 201 antiport is great, consequently, can avoid the screw to take place to become flexible, and preceding inclined plane 203 is the acute angle with spiral protrusion 201's vertical cross section, can guarantee spiral protrusion 201's forward screw in.
In the second embodiment, on the basis of the first embodiment, the positioning ring 4 is sleeved on the threaded rod 2, and the positioning ring 4 is connected with the stabs 401 at equal intervals; an annular groove 102 is further formed in the ring body 1, and the annular groove 102 corresponds to the positioning ring 4; the threaded rod 2 is also sleeved with a friction ring 5, and the friction ring 5 is positioned between the annular groove 102 and the positioning ring 4; the ring body 1, the threaded rod 2, the spine part 3 and the positioning ring 4 are all made of stainless steel, and the friction ring 5 is made of rubber;
after the installation is completed, the annular groove 102 extrudes the positioning ring 4, so that the conical prick 401 pierces the installation surface, and the positioning ring 4 is extruded by matching with the friction ring 5, thereby further enhancing the stability of the screw during installation and avoiding the loosening phenomenon.
The working principle is as follows: when the tool is used, a tool is inserted into the tool groove 101, the ring body 1 can be driven to rotate, the ring body 1 drives the threaded rod 2 to rotate, the threaded rod 2 is extruded through the spine part 3, and then the threaded rod 2 is installed in a spiral mode; through the arranged anti-loosening groove 202, when the screw is screwed in, the screw boss 201 is used for extruding, preferably, the rear inclined surface 204 can be overlapped with the vertical section of the screw boss 201, so that after the screw is installed, the extruded surface rebounds under the reaction of force and enters the anti-loosening groove 202, the resistance of the screw boss 201 during reverse rotation is large, the screw can be prevented from loosening, the front inclined surface 203 and the vertical section of the screw boss 201 form an acute angle, and the forward screwing-in of the screw boss 201 can be guaranteed;
after the installation is completed, the annular groove 102 extrudes the positioning ring 4, so that the conical prick 401 pierces the installation surface, and the positioning ring 4 is extruded by matching with the friction ring 5, thereby further enhancing the stability of the screw during installation and avoiding the loosening phenomenon.
Claims (6)
1. A screw for preventing loosening comprises a ring body (1), and is characterized in that: the ring body (1) is connected with the threaded rod (2), and the threaded rod (2) is connected with the spine part (3); a spiral protrusion (201) is formed on the threaded rod (2), and anti-loosening grooves (202) are uniformly formed on the spiral protrusion (201);
a front inclined surface (203) and a rear inclined surface (204) are formed in the anti-loosening groove (202), the angle between the front inclined surface (203) and the horizontal plane is 90-180 degrees, and the angle between the rear inclined surface (204) and the horizontal plane is 90-180 degrees.
2. A loosening prevention screw as claimed in claim 1, wherein: the tool groove (101) is formed in the top end of the ring body (1), and the tool groove (101) is of a regular polygon structure.
3. A loosening prevention screw as claimed in claim 1, wherein: the threaded rod (2) is sleeved with a positioning ring (4), and the positioning ring (4) is equidistantly connected with a prick (401).
4. A loosening prevention screw as claimed in claim 3, wherein: an annular groove (102) is further formed in the ring body (1), and the annular groove (102) is arranged corresponding to the positioning ring (4).
5. A screw for preventing loosening according to claim 4, in which: the threaded rod (2) is further sleeved with a friction ring (5), and the friction ring (5) is located between the annular groove (102) and the positioning ring (4).
6. A screw for preventing loosening according to claim 5, in which: the ring body (1), the threaded rod (2), the spine part (3) and the positioning ring (4) are all made of stainless steel, and the friction ring (5) is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220663106.XU CN216343333U (en) | 2022-03-25 | 2022-03-25 | Anti-loosening screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220663106.XU CN216343333U (en) | 2022-03-25 | 2022-03-25 | Anti-loosening screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216343333U true CN216343333U (en) | 2022-04-19 |
Family
ID=81167004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220663106.XU Active CN216343333U (en) | 2022-03-25 | 2022-03-25 | Anti-loosening screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216343333U (en) |
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2022
- 2022-03-25 CN CN202220663106.XU patent/CN216343333U/en active Active
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