Anti-loosening self-tapping screw

Abstract

The utility model provides an anti-loosening self-tapping screw which comprises a screw body, a protruding block is arranged on a screw cap of the screw body, a polygonal installation groove is formed in the protruding block, a polygonal clamping plate is installed in the polygonal installation groove, the polygonal clamping plate comprises a first polygonal plate and a second polygonal plate, and the first polygonal plate and the second polygonal plate are arranged in the polygonal installation groove. The area of the first polygonal plate is larger than that of the second polygonal plate, and the outline of the second polygonal plate is the same as that of the polygonal mounting groove. The anti-loosening self-tapping screw provided by the utility model can be prevented from rotating, so that the possibility of loosening of the screw is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of screw technology, specifically relating to an anti-loosening self-tapping screw. Background Technology

[0002] In industrial applications, particularly in machinery and construction, self-tapping screws are widely used for connecting thin plates or pipes because they can form their own internal threads. However, self-tapping screws are less stable after installation and may loosen. Utility Model Content

[0003] The main purpose of this invention is to provide an anti-loosening self-tapping screw, which reduces the possibility of the self-tapping screw loosening and improves stability.

[0004] To achieve the above objectives, this utility model provides an anti-loosening self-tapping screw. The anti-loosening self-tapping screw includes a screw body, a protrusion on the nut of the screw body, and a polygonal mounting groove on the protrusion. The polygonal mounting groove is used to install a polygonal locking plate. The polygonal locking plate includes a first polygonal plate and a second polygonal plate. The area of ​​the first polygonal plate is larger than the area of ​​the second polygonal plate, and the outline of the second polygonal plate is the same as the outline of the polygonal mounting groove.

[0005] This utility model provides an anti-loosening self-tapping screw. The screw body, as the basic structure of the self-tapping screw, is used to achieve the functions of fastening and connection. A protrusion is provided on the nut, and this protrusion has a polygonal mounting groove for installing a polygonal locking plate, enhancing the screw's anti-loosening performance. Specifically, after the screw is driven into the required mounting hole, it sinks into the mounting hole. The top opening of the mounting hole is a certain distance from the top of the nut. The mounting hole opening is designed as a polygon. After the polygonal locking plate is inserted, it can prevent the screw from rotating, thereby reducing the possibility of the screw loosening.

[0006] In one possible implementation, the outline of the second polygonal plate is a regular hexagon. This regular geometry facilitates precise installation and positioning.

[0007] In one possible implementation, the first polygonal plate has a regular hexagonal outline, and the area of ​​its inscribed circle is larger than the area of ​​the nut. Alternatively, the first polygonal plate can also have a regular hexagonal outline, with its inscribed circle having an area larger than the nut's area. This design provides a larger contact area and enhances the stability of the locking plate.

[0008] In one possible implementation, the thickness of the second polygonal plate is the same as the depth of the polygonal mounting groove. This matching thickness ensures a good fit between the locking plate and the mounting groove, improving the anti-loosening effect.

[0009] In one possible implementation, the nut has a slotted groove. This slotted groove design facilitates tightening or loosening with a flathead screwdriver, improving the convenience of screw operation. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of an anti-loosening self-tapping screw structure provided by this utility model;

[0011] Figure 2 This is a schematic diagram of an anti-loosening self-tapping screw and a polygonal locking plate structure provided by this utility model. Detailed Implementation

[0012] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0013] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0014] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0015] See attached diagram. Figure 1 and Figure 2 As shown in the figure, the anti-loosening self-tapping screw provided by this utility model includes a screw body 1. A protrusion 2 is provided on the nut of the screw body 1. A polygonal mounting groove 3 is provided on the protrusion 2. A polygonal locking plate 4 is installed in the polygonal mounting groove 3. The polygonal locking plate 4 includes a first polygonal plate 51 and a second polygonal plate 52. The area of ​​the first polygonal plate 51 is larger than the area of ​​the second polygonal plate 52. The outline of the second polygonal plate 52 is the same as the outline of the polygonal mounting groove 3.

[0016] This utility model provides an anti-loosening self-tapping screw. The screw body 1 serves as the basic structure of the self-tapping screw, used to achieve the functions of fastening and connection. A protrusion 2 is provided on the nut, and this protrusion 2 has a polygonal mounting groove 3 for mounting a polygonal locking plate 4, enhancing the screw's anti-loosening performance. Specifically, after the screw is driven into the required mounting hole, it sinks into the mounting hole. The top opening of the mounting hole is a certain distance from the top of the nut, and the mounting hole opening is polygonal. After the polygonal locking plate 4 is inserted, it can prevent the screw from rotating, thereby reducing the possibility of the screw loosening.

[0017] In one possible implementation, the outline of the second polygonal plate 52 is a regular hexagon. This regular geometry of the second polygonal plate 52 facilitates precise installation and positioning.

[0018] In one possible implementation, the outline of the first polygonal plate 51 is a regular hexagon, and the area of ​​the inscribed circle of the first polygonal plate 51 is larger than the area of ​​the nut. Alternatively, the first polygonal plate 51 may also have a regular hexagonal outline, with the area of ​​its inscribed circle larger than the area of ​​the nut. This design can provide a larger contact area and enhance the stability of the locking plate.

[0019] In one possible implementation, the thickness of the second polygonal plate 52 is the same as the depth of the polygonal mounting groove 3. This matching thickness ensures a good fit between the locking plate and the mounting groove, improving the anti-loosening effect.

[0020] In one possible implementation, the nut has a slot 6. This slot 6 design facilitates tightening or loosening with a flathead screwdriver, improving the convenience of screw operation.

[0021] It is worth mentioning that those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A self-tapping screw designed to prevent loosening, characterized in that, The device includes a screw body, a protrusion on the nut of the screw body, a polygonal mounting groove on the protrusion, a polygonal locking plate for mounting in the polygonal mounting groove, the polygonal locking plate including a first polygonal plate and a second polygonal plate, the area of ​​the first polygonal plate being larger than the area of ​​the second polygonal plate, and the outline of the second polygonal plate being the same as the outline of the polygonal mounting groove.

2. The anti-loosening self-tapping screw according to claim 1, characterized in that, The outline of the second polygonal plate is a regular hexagon.

3. The anti-loosening self-tapping screw according to claim 2, characterized in that, The outline of the first polygonal plate is a regular hexagon, and the area of ​​the inscribed circle of the first polygonal plate is greater than the area of ​​the nut.

4. The anti-loosening self-tapping screw according to claim 3, characterized in that, The thickness of the second polygonal plate is the same as the depth of the polygonal mounting groove.

5. The anti-loosening self-tapping screw according to claim 4, characterized in that, The nut has a slotted groove.

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